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SAN ANTONIO FAMILY MEDICINE

Services

DIRECT PRIMARY CARE 

DIRECT PRIMARY CARE 

DIRECT PRIMARY CARE 

DIRECT PRIMARY CARE 

DIRECT PRIMARY CARE 

At Merlin Direct Primary Care, you’ll have a doctor who is easy to reach, attentive, and invested in your long-term health—care designed around your life, not the system.

Specialized Care

Telehealth

Home Visits

Procedures

Labs

Primary Care Services

  • Sick visits
  • Same day appointments
  • Wellness care for men, women and children
  • Management of chronic medical conditions
  • In office procedures
  • STD testing
  • Telehealth appointments
  • Mental health support
  • Prescription management
  • Women’s health
  • Men’s health
  • Dermatology
  • Vein health
  • Weight management
  • Diabetes care

Convenience and Communication

  • No insurance required
  • Direct communication with your doctor by phone and text
  • Spanish speaking
  • Financing and payment plans available
  • Insurance can be used for labs, imaging, specialists, and medications

Pricing and Transparency

  • Transparent low negotiated prices on labs and radiology
  • Affordable membership with no surprise bills

CHRONIC DISEASE MANAGEMENT

Chronic disease management focuses on diagnosing, treating, and monitoring long-term conditions such as diabetes, hypertension, and high cholesterol. By addressing these early, we help prevent serious complications like heart disease, kidney problems, or strokes.
At Merlin DPC, you can manage all your chronic conditions in one place, saving time and avoiding multiple specialist visits. Our goal is to keep you healthy and active through continuous monitoring, personalized treatment plans, and preventive guidance.

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PREVENTIVE HEALTH

Preventive care helps detect health issues before symptoms appear. This includes routine screenings, lifestyle guidance, and wellness counseling.
Anyone who wants to maintain or improve their health benefits from preventive care. Our team provides tools, education, and personalized recommendations to support long-term wellness and prevent disease progression.

PHYSICAL EXAMS

Regular physical exams allow us to track your health over time, detect early signs of illness, and answer your questions.

  • Annual wellness exams to monitor overall health
  • Pre-employment exams including labs or drug tests if needed
  • Sports / pre-participation exams to evaluate fitness and safety

WEIGHT & METABOLIC HEALTH

We provide personalized weight and body composition guidance, including:

  • Nutritional planning tailored to your lifestyle
  • Exercise recommendations
  • Review and adjustment of medications that affect weight or metabolism
  • Support for obesity-related conditions such as fatty liver, type 2 diabetes, and hyperlipidemia
  • Weight loss injections (such as semaglutide)

PEDIATRIC CARE

Comprehensive care for children, including:

  • Well-child exams
  • Immunizations and preventive care
  • Acute illness visits and minor injuries
  • Developmental guidance and parental support
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ACUTE / SAME-DAY VISITS

For urgent medical needs, we provide same-day or next-day appointments, ensuring timely care for:

  • Infections
  • Fevers and colds
  • Minor injuries
  • Medication management

GERIATRIC CARE

Focused on adults 65 and older, geriatric care includes:

  • Longer appointments and one-on-one consultations
  • Management of age-related conditions such as dementia, osteoporosis, arthritis, and diabetes
  • Preventive guidance to reduce frailty, maintain balance, and preserve independence
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OTHER ROUTINE & GENERAL PROCEDURES

We offer a broad range of primary care services without additional visits or surprise bills, including:

  • Routine labs and diagnostics
  • Preventive screenings
  • Dermatologic procedures such as skin tag or wart removal, mole biopsy, ingrown toenail care, and other minor treatments; corticosteroid injections for joints and soft tissues; pap smears, colposcopy, and other obstetric procedures; as well as additional routine in-office procedures.

Our approach prioritizes your goals, health, and quality of life, rather than just a number on a scale.

A LA CARTE SERVICES FOR NON-MEMBERS

If you’re not a member, you can still access any of these services individually at set prices. This gives you flexibility to receive high-quality care without committing to a membership, while still benefiting from thorough, personalized attention.

  • Services are priced individually per visit or procedure
  • Same high level of care, attention, and physician access as members
  • Perfect for those who need occasional care, specific procedures, or preventive visits

The cost for a same day visit will be $300, this does not include any phlebotomy, labs, or procedures, but does include the vitals, exam, diagnosis, treatment plan, etc…

There are no walk ins.

Patient Reviews

“
Herman Romero

“I truly appreciate the same day appointment option. I would definitely recommend.”

“
Dawn Campbell

“Dr Ramon Diez Barroso is the first person I| want to call about any question on my health or for my loved ones' health. His intentional way of listening and wanting to make sure he understands what you are feeling, makes me feel very good about his diagnosis. He has been 100% right on the mark and knows exactly what to do to make things better. Thank you”

“
Travis Swisher

“I came in thinking I had an eye infection because my eye was red and irritated, but it turned out to be a scratched eye. Doctor Diez-Barroso was very calm, thorough, and reassuring. He explained what was going on clearly and let me know it would heal on its own in a few days, which it did. I appreciated that he didn’t push unnecessary treatments and instead gave honest and helpful advice. Great experience overall!”

“
Dr. Marcus Cavazos

“As a dentist, I recognize quality healthcare, and Dr. Ramon Diez Barroso at Merlin Primary Care provides exactly that – it's truly outstanding. From thorough assessments to personalized treatment plans, Dr. Diez Barroso's expertise, professionalism, and reassuring demeanor set him apart. The entire staff makes you feel like family. For personalized, compassionate, and superior primary care in San Antonio, I highly recommend Dr. Diez Barroso and his team.”

“
Allison Salido

“Recently, while on vacation, I experienced a panic attack. Fortunately Dr. Ramon Diez Barroso was there He was so caring and immediately acknowledged my fears and concerns. His whole nature was very calming. He explained in simple and understandable language. What I needed to do. I immediately started to feel better. He was so compassionate and continue to follow up with me for the rest of the trip. So thankful.”

“
Juliana Perez

“Dr. Diez Barroso is very thorough, knowledgeable, trustworthy and patient. Whether I’ve come to him for general health concerns, postpartum complications, anxiety, or my 6-month-old’s overall health, he always has a solution. I never feel rushed through our consultations and always leave feeling confident in his diagnosis and treatment plan!”

“
Adriana Casso

“After battling breast cancer, I faced many lasting challenges from chemotherapy and other treatments. I saw several doctors, but none felt like the right fit for my complex case—until I found Dr. Diez Barroso. When I called, he personally answered and took the time to truly listen. His kindness, attentiveness, and clear explanations gave me hope for the first time that I could have a family doctor who understands my needs. I am deeply grateful to be under his care”

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