Dr. Marcos welcomes a female patient to the building.

Medical Spa in San Antonio

Committed to Your Quality of Life

Your Health & Wellness is Our Priority

Marcos Medical puts patients at the center of care from the moment they walk in the door.

Our internal medicine practice and medical spa in San Antonio use a combination of consistent learning and cutting-edge technology to provide the most advanced treatments available. But more importantly, we collaborate with patients to provide integrated care that fits their needs and achieves their goals.

Dr. Marcos takes notes on her computer during a consultation with a male client, who is seated on an exam chair.

Monthly Special

The Great North American FORM, FIT, and FUNCTION Tour

Join us on July 25th from 1 PM- 3 PM to experience for yourself the power of the Emsculpt Neo, Emface, Exion, and Emsella! Also HUGE event day discounts, and indulge in frozen drinks & delicious shaved ice! CLICK HERE to reserve your spot for FREE!!

We look forward to seeing you at 510 Med ct San Antonio, Texas 78258!


Who is Marcos Medical?

Starting over 20 years ago, Marcos Medical Care has provided excellent long-term outcomes to patients across North Central San Antonio and beyond

Our patients are our purpose, and they’re the reason that we strive to provide the most advanced care available. The heart of our medical spa in San Antonio is our team of extraordinary provers- who use experience and compassion to improve patients’ health and wellness.

Marcos Medical Provider performs a Juliet Facial on client using the handheld tool. Client is laying face-up on medical exam table and wearing eye cover. Provider wears protective glasses.

Benefits of Visiting Marcos Medical


Marcos Medical has earned several honors as a top care center and medical spa in Stone Oak and the Greater San Antonio area. Our health plans and evidence-based medicine show our commitment to providing excellent patient care.

Caring Providers

Our providers are our biggest differentiator. Each and every one of them deeply cares for the health and well-being of our patients, and they'll work tirelessly to help you reach your goals.

Advanced Treatments

Our team believes in constant improvement and lifelong learning. Investing in the latest, most proven treatments helps patients get the exact results they're looking for.


Your visit to Marcos Medical is all about you. We don't just practice care for patients—we listen to their issues and work together to find a treatment that fits their needs, wants, and goals.


Hear it From Our Patients

Super Nice and Professional

I was a new patient, so it was my first time being in the office. The front desk staff was super nice and professional. The wait to be brought to the back wasn’t long at all. Katherine brought me and took my blood pressure and medical history before the PA came in to see me. She was also super professional and made me feel comfortable being there. I saw PA Fabian Hernandez and he was excellent and didn’t make me feel rushed and made sure he answered any questions or concerns I had. Overall, it was a great first appointment in establishing care with Marcos Medical Care.

Kathleen Martinez

Make Everyone Feel Care and Loved

If I could give more stars I would. This company from top to bottom are amazing, the care the overall details of my care I would not want any other. The doctors staff is on point with every detail. Thank you all for making every one feel cared and loved.

Roanna Morin

Attentive and Not Rushed

I have been seeing the PA, Sarah Davidson, for a few years. She listens carefully to my concerns, answers all questions, and gives me her full attention. She also does not act rushed or in a hurry. She is very responsive to anything I say or ask. 👍🏻👍🏻👍🏻

May Mai

Take Great Care of Me

I have been seeing Dr Marcos for about eight years and she has made an amazing difference in my life. Always kind and through she is always willing to listen to my input. Raquel and Melissa are amazing staff members who are great people too. Great combination who take great care of me. :)


Pure Gold

Professional and caring service, with very little wait. They fit me in as an emergency when they had a cancellation and in an era where getting a primary care doctor as a new patient seems virtually impossible, this clinic is pure gold.


I refer everyone to Marcos

I have gone to Marcos Medical Care for seven years. I have referred my extended family and many friends to this practice. Yolanda Marcos, M.D., is an outstanding and brilliant internist. She is extremely talented in handling patients that present with complicated multiple health issues, of which I am one. Her wellness clinic is exceptional and all services I have received there have been very successful. David Johnson keeps both the medical and wellness practices running efficiently!

Julie Shaker

Dr. Marcos is Delightful

I have enjoyed using Dr. Marcos medical services for the past 11 years. She is a delightful, professional who listens, asks questions, probes and answers all of my questions. She is very thorough. Her staff is well trained, and their front desk is equally attentive to patients needs. She also has a portal which makes it very easy to communicate with her office and staff.

Henry Strauss

Attentive and Thorough

My wife Loretta and I have been going to Marcos medical for 5 years after moving in the stone oak area. The entire team is attentive and thorough with all your needs. Sarah Davidson PA is absolutely the best . I wouldn’t go anywhere else. I highly recommend them.

Edward Robinson

I definitely found my family doctor!

Excellent! The front office staff is kind and professional as well as the medical staff. I personally saw Fabian Hernandez, PA-C, who is thorough and takes the time to listen. He explained several things as he reviews your chart and results in your file. I definitely found my family doctor!

Diana Cantu

Friendly, Caring, and Very Responsive

Dr. Marcos office was efficient and quick to take care of me as a new patient. I had Covid two weeks ago, and am not recovering well. I’m also seeking short-term disability until I recover. The doctor was friendly, caring, and very responsive. I’ll definitely keep Dr. Marcos as my new primary physician.

Denice Haley

Sarah is my favorite PA!

I haven’t been to this office but a couple of times but like the staff, they are friendly yet professional and all seem to work well together. Sarah is my favorite PA! I felted comfortable with her immediately. She’s caring, knowledgeable, and patient. I’m happy to have found her.

Deanna Frederick


Mr. Fabian, was extremely professional and very thorough. He seems to genuinely care about me and my husband's health! He answered all of our questions and concerns. It was refreshing to see such a nice and courteous P.A.! The Staff are also polite and professional! They too deserve a "FIVE STAR"!

Christine Cavazos

Always Professional and Helpful

I believe we hit a gold mine with Dr. Marcos Medical Care. Staff have been showing professionalism and they all know what is expected. Always professional and helpful. Keep doing what you are doing...

Armando Ortiz

Unique and Extremely Helpful

We've been w/Dr. Marcos since 2003. The practice just keeps improving. The Chronic Care option is unique and extremely helpful. Recommend this practice unconditionally.

Anne Hayes

Schedule Your Appointment at Marcos Medical

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