About Us

Dr Derin Patel, MD is a Board Certified Internal Medicine physician with over 10 years of experience and the CEO of Hillside Primary Care. After graduating from Ross University School of Medicine, he completed his residency training at the University of Kentucky in Internal Medicine.

Dr. Patel practiced as a hospitalist in Owensboro, Kentucky, for 2 years and then in Evansville, Indiana, before moving to Texas and starting his own practice in 2018. His passion for educating his patients about their plan of care while taking the time to listen makes Dr. Patel a caring and compassionate physician.

Specialty
Board Certified Internal Medicine

Education
Undergraduate – University of Illinois at Chicago
Medical School – Ross University School of Medicine
Residency Training – University of Kentucky

Experience
Board Certified Internal Medicine physician with over 8 years of experience.

Blake Tokheim joined Hillside Medical Group in 2024 as Chief Executive Officer, where he leads corporate strategy, performance optimization and growth initiatives. Blake brings over 13 years of experience in strategic development, mergers and acquisitions and third-party partnerships, with a focus on physician groups and multisite healthcare services.

Before joining Hillside, Blake served as AVP of Business Development at InnovaCare Health, where he was instrumental in growing the company into a leading managed care platform with 47 clinics and over 200 providers. He spearheaded over 18 acquisitions across Florida and Texas, significantly expanding the company’s geographic footprint and patient base.

Prior to InnovaCare, Blake spent 7 years as a private equity investor and investment banker at The Riverside Company and KeyBanc Capital Markets.

Originally from Omaha, Nebraska, Blake holds a Bachelor’s degree in Business Administration from the University of Dayton.

Donna Marie Barry is a dedicated healthcare professional with over 35 years of experience in practice operations and human resources. In late 2024, she joined Hillside Medical Group as the Chief Operating Officer, following a successful career in various areas of healthcare in San Antonio. Donna thrives in dynamic environments, specializing in practice operations, business development, and program creation, with a strong focus on developing people to meet evolving challenges.

Her leadership approach is rooted in exceptional communication skills and a commitment to problem-solving and relationship building. Donna believes in nurturing talent and fostering growth, which has been a cornerstone of her career.

Originally from Amarillo, Texas, Donna moved to San Antonio at a pivotal moment in her life, marking the beginning of her healthcare journey. Her deep love for healthcare drives her to make a meaningful impact every day.

Donna takes immense pride in her two grown children, who were raised in Helotes and continue to inspire her. Outside of work, her family is her greatest joy. She has a passion for cooking and an appreciation for fine food and wine, which she loves to share with those she cares about.

Mrs. Durga Patel, CFO at Hillside Primary Care, holds an MBA specializing in Accounting from Devry University. She grew up in Chicago, IL, and earned her Bachelor’s in Chemistry from the University of Illinois at Chicago. Durga moved to San Antonio in 2017 and began her journey with Hillside Primary Care in 2018.

In her free time, she enjoys cooking, traveling, and spending quality time with her family.

Mr. Luis Rangel joined Hillside Primary Care in 2018 as our practice manager and recently advanced to Director of Operations. He works closely with the management team and providers to oversee all aspects of the clinics, including daily operations, ensuring they run as smoothly as possible. Mr. Luis Rangel holds an EMTB certification and brings extensive experience in EMS, ER, and critical care healthcare administration. A native of Castroville, Texas, Luis contributes a wealth of leadership skills to his role at Hillside Primary Care. With his positive attitude and strong sense of humor, he leaves a lasting impression on everyone he meets while balancing his various responsibilities at our primary care clinics in San Antonio, Texas.

Outside of work, Luis enjoys spending time with his family and his dog, Cinnamon.

Luis and his team are always happy to answer any questions you may have about our clinics, services, or related to management.

Mrs. Samreen Affan joined Hillside Primary Care at the beginning of 2020 as a front desk associate and quickly advanced to manager. Recently, she was promoted to Director of Compliance and Training. Samreen holds a bachelor’s degree in business management and finance. Born in Pakistan, she moved to San Antonio in 2012, where she furthered her education with a major in project management. With extensive experience in administration and management, she collaborates with the management team and providers to run our primary care clinics efficiently, overseeing staff recruitment, implementing regulations, and enhancing communication.

In her free time, Samreen enjoys painting, traveling, cooking, and spending quality time with her family.

Dr. Suneeta Naik is a Family Practice Physician with over 30 years of experience. She has been providing care to the Universal City community for over 10 years. She takes a lot of pride in caring, educating, and providing compassionate, evidence-based care to her patients.

In her free time, she enjoys spending time with her daughters and grandchildren.

Specialty:
Family Practice

Experience:
Family Practice physician with over 30+ years of experience.

Book an appointment with Dr. Suneeta Naik, MD, at our Universal City Office at Hillside Primary Care.

Dr. Amita Kumar, MD, is a Canadian native and is Board Certified in Internal Medicine. Her clinical practice focuses on preventive medicine, specializing in treating postmenopausal symptoms, diabetes, hypertension, and eczema. Her patients praise her for her caring and compassionate nature.

Before joining Hillside Primary Care, Dr. Kumar gained experience in both private practice and academia.

Dr. Kumar enjoys spending time with her family and traveling in her spare time. She strives to balance healthy eating, exercise, and fun in her life and promotes this same philosophy to her patients.

Schedule an appointment with Dr. Amita Kumar at Hillside Primary Care today and experience personalized, compassionate care. Call us now or visit our office to book your appointment!

Dr Mark Bentley, DO was born in Ohio and completed his undergrad from Shawnee State University. He obtained his medical degree from Ohio University Heritage College of Osteopathic Medicine, he then completed his Family Medicine residency with Kettering Health Network at Soin Hospital in Beavercreek, Ohio. Dr. Bentley is passionate about LGBT+ medicine and is excited to serve this community in San Antonio. Dr. Bentley thrives at providing high-quality patient care to the community. You can find him enjoying the outdoors, traveling, and art in his free time.

Call our Live Oak office today! and book your appointment with Dr. Bentley now. Don’t wait—your health deserves it!

Dr. Vamsi Garimella completed his undergraduate degree in Biology at Howard University. He further pursued medicine, earning his medical degree from Howard University College of Medicine. He completed his Internal Medicine Residency training at the University of Miami in Miami, FL, where he was able to grow his passion for primary care. Dr. Garimella is keen on emphasizing prevention in his patient population and is excited to serve the community in San Antonio. His hobbies include playing a variety of sports and engaging in outdoor activities

Mr. Roy Anderson is a US Army Veteran with over 20 years of nursing experience in emergency and critical care and has been a resident of Schertz for the past 10 years. He graduated from the University of Texas at Arlington in 2020 as a Family Nurse Practitioner.

His experiences in nursing have reinforced the need for exceptional primary care, and he is thrilled to be part of a team dedicated to that goal. He enjoys time spent with his family and looks forward to taking care of the members of the community.

Schedule an appointment with Mr. Roy Anderson, FNP-C, at our Live Oak Office today.

Mr. Robert “Danny” Hernandez, FNP-C, is a Board-Certified Family Nurse Practitioner. Born and raised in San Antonio, TX, he also spent part of his life in Southern California. He earned his Bachelor’s in Nursing from UT Health Science Center in San Antonio in 2016 and worked as an RN for six years before completing his Master of Science in Nursing in 2021 from UT Arlington.

Danny is dedicated to enhancing his patients’ quality of life by providing excellent, evidence-based care. In his free time, he enjoys playing with his daughter, cooking, and relaxing with his family while watching movies. Danny is also a car enthusiast.

Schedule an appointment with Mr. Robert Hernandez, FNP-C, at Hillside Primary Care today and experience compassionate, patient-focused care. Contact us now to book your visit!

Mrs. Karen Johnson is a Board-Certified Family Nurse Practitioner (FNP-C). She earned her Master of Science in Nursing and Family Nurse Practitioner certification from Texas Tech University Health Sciences Center in 2009. Before becoming a Nurse Practitioner, Karen worked as a critical care nurse for over 20 years with the Methodist Healthcare System in San Antonio. She also spent several years as a Family Nurse Practitioner at a Family Practice Clinic on the south side of San Antonio.

Karen has been a long-time resident of the Schertz/Cibolo area, with all three of her children graduating from Samuel Clemens High School. After many years of working in San Antonio, she chose to serve her local community by providing care to the residents of Schertz and Cibolo. Three years ago, she opened her own practice and is now merging with Hillside Primary Care Clinic to further expand her career in the area.

Karen’s mission is to improve and maintain the overall health of each patient by delivering high-quality care, promoting preventive measures, and emphasizing early disease detection. She has a deep passion for her patients and treats each one like family.

Ready to experience personalized, compassionate care? Schedule your appointment with Mrs. Karen Johnson at Hillside Primary Care today!

Ms. Florence Pugh is a Board-Certified Adult Gerontology Primary Care Nurse Practitioner with over 16 years of nursing experience. Born and raised in Michigan, she began her nursing career there and has since become a trusted provider in the healthcare community.

In 2017, Flo earned her Master of Science in Nursing degree from Madonna University in Livonia, Michigan. She decided to pursue an advanced practice degree to serve her community in a new capacity, inspired by her parents’ medical challenges and a desire to provide comprehensive care.

With a military career spanning over 30 years, Flo has transitioned from a medical supply specialist to a field medic and now a nurse. Her diverse background reflects her deep passion for healthcare and her commitment to caring for others.

Outside of work, Flo enjoys spending time with her family and friends, attending church, and playfully teasing her cat, Bernice.

Ready for compassionate care? Schedule an appointment with Flo today and experience the difference! Call us now or book your visit online.

Ms. Fatima Elmaanaoui is a Board-Certified Family Nurse Practitioner originally from Casablanca, Morocco. She moved to the USA in 2009 to pursue a career in healthcare. Fatima completed her undergraduate education at IHCC in Iowa and earned her master’s degree in nursing education from WGU. With 6 years of experience in intensive care, telemetry, and medical-surgical care, and an additional 2 years as a nurse educator, she decided to further her education and obtained her FNP degree from Graceland University in Lamoni, Iowa.

As a primary care provider, Fatima is passionate about making a positive impact on her patients’ overall health by offering evidence-based and preventive care services. She is fluent in English, Spanish, Arabic, and French, allowing her to connect with a diverse range of patients.

In her free time, Fatima enjoys reading mystery books, traveling, and spending quality time with her loved ones.

Take the first step toward better health—schedule an appointment with Ms. Fatima Elmaanaoui today. Call our office or book online now!

Adams Jeffery Blanco, PA-C, is an NCCPA Board Certified Physician Assistant, originally from San Jose, California, and now residing in San Antonio, Texas. He earned his Bachelor of Science in Medical Laboratory Sciences in 2015 and spent six years working in hematology and chemistry laboratories. In 2021, he completed his Master’s Degree in Physician Assistant Studies at The University of Texas at Rio Grande Valley. He joined Hillside Primary Care in March 2023, where he performs various procedures such as joint injections, skin biopsies, trigger point injections, headache injections, and more.

Adam is a health and fitness enthusiast who enjoys weightlifting and practicing martial arts, including Brazilian Jiu-Jitsu. He also cherishes quality time with his wife and son. He is passionate about educating his patients on lifestyle changes that can positively impact their overall health, focusing on nutrition, exercise, adequate sleep, and hydration to enhance their quality of life. Alongside this, he is committed to providing excellent healthcare using evidence-based medicine.

Take the next step towards better health today! Schedule an appointment with Adams Jeffery Blanco, PA-C, at Hillside Primary Care and start your journey to a healthier, happier you. Call us or book an appointment online now!

Juan Carlos Perez, FNP-C, is a board-certified Family Nurse Practitioner with the American Association of Nurse Practitioners (AANP). Originally from Mexico, he now calls San Antonio, Texas, home. Juan earned his Bachelor of Science in Nursing in 2017 and spent three years working in long-term care. He then pursued a Master of Science in Nursing at The University of Texas at Arlington, graduating in 2022. He joined Hillside Primary Care in March 2023 to deliver culturally competent, holistic, and evidence-based care.

Outside of work, Juan enjoys quality time with his wife and two sons, Carlos and Thiago. He loves fishing, swimming, and hiking. On weekends, you can find him at his local church, engaging with the community. Juan is dedicated to supporting people through their most vulnerable moments.

Ready to experience compassionate, personalized care? Book an appointment with Juan Perez at Hillside Primary Care today. Contact us to schedule your visit and start your journey to better health!

Mr. Huy Nguyen, formally pronounced HWEE and informally as Huey is a Nationally Board Certified Physician Assistant, born and raised in Richardson, Texas. He is a Marine Corps veteran and went on to earn a Bachelor of Science in Applied Learning and Development from The University of Texas at Austin in 2015, followed by a Master of Physician Assistant Studies degree at The University of Texas Health Science Center in San Antonio in 2022.

Huy is passionate about providing high-quality, evidence-based care for each patient, with an emphasis on taking the time to address the unique needs and concerns of every individual. In his free time, Huy will talk endlessly about dogs, fishing, camping, and volleyball.

Book an appointment with Mr. Huy Nguyen, PA-C, at our Castle Hills Office at Hillside Primary Care today!

Mrs. Abbi McDaniel, a Certified Nurse Practitioner (FNP-C) originally from Evansville, Indiana, brings a wealth of experience to Hillside Primary Care. She completed her undergraduate studies at Ivy Tech Community College and the University of Southern Indiana and spent over six years working in critical care and medical/surgical areas in a hospital setting. In 2017, Abbi moved to northeast San Antonio with her family. Her passion for preventive care led her to further her education as an Advanced Practice Provider at the University of Texas at Arlington. As a Family Nurse Practitioner, Abbi is dedicated to delivering quality, compassionate care to her patients at Hillside Primary Care.

Outside of work, Abbi enjoys spending time with family and friends, being involved in her church, and helping with her daughters’ scout troop.

Schedule an appointment with Mrs. Abbi McDaniel today at Hillside Primary Care to get complete and personalized health care. Call us or visit our Live Oak, Texas office to book your appointment now!

Ms. Mariana Ontiveros is originally from Arizona and has been living in San Antonio after completing her master’s program at Grand Canyon University in 2022. She is certified by the American Association of Nurse Practitioners and has over six years of nursing experience, with the majority spent working in critical care. While caring for her very sick patients in the ICU, she realized the importance of preventative medicine and chronic disease management. Mariana knew she could make a positive impact as a nurse practitioner by helping her patients stay out of the hospital and providing holistic care in the primary care setting. Her goal as an FNP is to ensure her patients have all the information they need about their health so they can leave their appointments feeling confident about their care.

When not at work, Mariana enjoys spending time with her cats, going to the movies with her fiancé, and watching baseball.

Book your appointment with Ms. Mariana Ontiveros, FNP-C, at our Universal City Office today! Your health journey starts now—don’t wait!

Ms. Roselyn Omungo is a Board Certified Family Nurse Practitioner who is originally from Houston where she obtained her undergraduate nursing degree at Prairie View AM University. She has been in healthcare for 30 years, with experience in NICU, OBGYN, Cardiac care, and Flight Nursing. Her passion lies in primary care, specifically focusing on preventive care and patient education.

She had 3 children and resides in Hill County. She is passionate about serving the community, encouraging healthy living and womens health. In her free time she enjoys riding her motorcycle wine tasting and crafting.

Book an appointment with Ms. Roselyn Omungo today at Hillside Primary Care’s Austin office and take the first step toward personalized, proactive care!

Ms. Vanessa R Andrada is an NCCPA certified Physician Assistant (PA-C) with a commitment to excellence in healthcare. A San Antonio, Texas native, she earned a Bachelor of Arts in Medical Humanities from The University of Texas at San Antonio in 2018 and a Master of Physician Assistant Studies from The University of Texas Health Science Center San Antonio in 2023.

Vanessa is dedicated to preventive care and the promotion of healthy lifestyles through evidence-based medicine and places a strong emphasis on patient education. She ensures each patient receives personalized attention, addressing concerns and questions with diligence and care.

Outside of her professional pursuits, Vanessa enjoys quality time with family and friends, walks with her dog, Captain, and engages in hobbies such as journaling and learning the art of crochet.

Book your appointment with Ms. Vanessa R Andrada, PA-C, at our Live Oak Office at Hillside Primary Care today!

Khusboo Surtani is a Board Certified Physician Assistant. She was raised in Houston for 22 years and has always wanted to pursue a career in healthcare. She received her Bachelor of Science in Biology from the University of Houston and her Master of Physician Assistant Studies from the University of Texas Health Science Center in San Antonio. Khusboo’s goal is to provide high-quality, evidence-based care and improve the quality of life for all her patients. She is passionate about spending time during each appointment to educate and address all her patients’ needs and concerns. She is also fluent in Hindi and Sindhi.

In her free time, Khusboo loves making the most of her time with loved ones. She enjoys painting, knitting, crocheting, and spending time with her family and close friends.

Schedule your appointment with Ms. Khusboo Surtani, PA-C, at Hillside Primary Care’s Live Oak Office! Don’t miss out on top-notch care that fits your needs!

Ms. Safaa Soueid, FNP-C, a Board-Certified Nurse Practitioner with a rich background in Surgical Care, Neuro ICU, and Infection Prevention. Originally from Lebanon, she moved to the U.S. in 2009 and earned her Family Nurse Practitioner degree from the University of Texas at Arlington. Fluent in both English and Arabic, Ms. Soueid is passionate about providing exceptional primary care that positively impacts individuals and communities.

Outside of work, she enjoys spending time with her three boys, solving puzzles, reading, and hiking.

Book your appointment with Ms. Safaa Soueid, FNP-C, today at our Stone Oak Office! Call now and take the first step toward better health!

Ms. Priyanka Mooney is a US Army veteran and Board Certified Nurse Practitioner (FNP). She worked as an RN for 5 years in various acute care settings throughout Central Texas, settling in San Antonio in 2022. Her experiences at the bedside with patients and families inspired her to advance her education, obtaining her MSN from the University of Texas at Tyler in 2024. She strives to impact patients and strengthen their quality of life by providing compassionate, evidence-based care.

Outside of healthcare, she enjoys spending time with her 2 children, traveling, outdoor recreation, and trying new restaurants.

Emily Stansberry is a US Army Veteran and Board Certified Family Nurse Practitioner originally from Orange County, California. She earned her Bachelor of Science in Nursing through Seattle University and worked as an RN for 7 years in medical-surgical units, a step-down burn unit, and an internal medicine clinic. Gaining experience from bedside nursing inspired her to pursue her Master of Science in Nursing FNP Degree and have the opportunity to treat patients on another level. She is passionate about providing quality care and education to help patients effectively manage their overall health.

Outside of healthcare, Emily enjoys working out, dancing, and watching movies.

Call us now to schedule your visit! or Book your appointment with Emily Stansberry, FNP today at our Live Oak Office and experience primary care that truly makes a difference!

Dr Mary Baker, DNP, FNP-BC, is a Family Nurse Practitioner certified by the American Nurses Credentialing Center. With over 20 years of diverse nursing experience, she has worked in critical settings including high-risk labor and delivery, adult ICU, and emergency services. A veteran of the United States Air Force and native of Wisconsin, Mary holds a Bachelor of Science in Nursing from CarrollColumbia College, a Master of Science in Nursing from Kaplan University, and recently earned her Doctorate of Nursing Practice from Baylor University Louise Herrington School of Nursing in 2023.

Mary is passionate about empowering patients through health literacy and preventive care based on evidence-based practices. She is committed to fostering patient engagement to achieve their healthcare goals. Beyond her professional pursuits, Mary enjoys quality time with her husband, two energetic children, and cherished extended family and friends.

Schedule your appointment with Dr Mary Baker at our Live Oak Office today! Experience personalized primary care that puts you first.

Mariann Craddock, FNP, earned her Bachelor’s Degree in Nursing from Lamar University – Beaumont in 1999. She gained diverse nursing experiences before settling at McKenna Memorial, now Christus Santa Rosa – New Braunfels, in 2002. Her nursing career flourished there until she obtained her Master’s Degree in Nursing, with a minor in Nursing Education, in 2011. This led to a 12-year career at a community health clinic in Uvalde, Texas, where she balanced her work in Uvalde with her family life in New Braunfels. Now, Mariann is focused on continuing her career with a permanent transition back to New Braunfels and the surrounding areas.

Her personal philosophy centers on building a strong rapport with her patients to create collaborative care plans that work towards improving their health. This approach incorporates education, holistic care, and traditional medical practices.

In her free time, Mariann enjoys working on DIY home projects, camping in her RV, and attending music festivals and live events with a close-knit group of local musicians she considers family. She also remains committed to her goal of lifelong learning.

Schedule your appointment with Mariann Craddock, FNP, at our New Braunfels office today! Call now and take the first step toward better health.

Mrs. Patricia Diaz De Leon, PA-C, is a Nationally Board Certified Physician Assistant originally from Corpus Christi, Texas. She earned her Bachelor of Science in Biology from St. Edward’s University in Austin, Texas, in 2002, followed by her Master’s of Science in Physician Assistant Studies from the University of New England in Portland, Maine, in 2008. With over 12 years of experience in pediatrics, primary care, internal medicine, urgent care, and industrial medicine, Patricia has a deep passion for preventive and chronic care. A resident of the Schertz/Cibolo area for over five years, she is thrilled to be back with the Hillside Primary Care team, serving our valued patients.

Outside of her professional life, Patricia loves spending quality time with her family and friends, especially with her husband and two active children.