Your Partner in Lifelong Health

Internal Medicine located in Rockville, MD

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Over 15 Years of Trusted Experience

Dr. Charles has been serving Montgomery County with dedication and expertise for more than a decade, offering patients reliable, long-term care grounded in clinical excellence.

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 Comprehensive Internal Medicine Services

From acute infections to chronic conditions like diabetes and high blood pressure, Dr. Charles provides thorough diagnosis, treatment, and ongoing management tailored to each patient’s needs.

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Personalized, Compassionate Care

Patients are treated with respect and empathy in a welcoming environment. Dr. Charles takes the time to listen, educate, and build lasting relationships focused on whole-person wellness.

Welcome to the Practice of Dr. David A. Charles

At David A. Charles, MD, we provide compassionate, expert care for adults facing a wide range of health concerns. With over 15 years of experience in internal medicine, Dr. Charles is dedicated to helping patients manage both acute conditions and chronic illnesses—from sinus infections and urinary tract issues to diabetes, high blood pressure, and thyroid disorders. Our practice is built on trust, personalized attention, and a commitment to your long-term wellness.

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Testimonials

"Dr. Charles is always professional, patient and a great listener. He has been practicing medicine for quite some time and really knows how to treat his patients . His bedside manner is excellent. Always easy to talk to and to get in touch with. I highly recommend Dr. Charles."

Catherine Boegel

⭐⭐⭐⭐⭐

Testimonials

"Dr. Charles is always professional, patient and a great listener. He has been practicing medicine for quite some time and really knows how to treat his patients . His bedside manner is excellent. Always easy to talk to and to get in touch with. I highly recommend Dr. Charles."

Catherine Boegel

⭐⭐⭐⭐⭐

Our Services

At David A. Charles, MD, we offer a full range of internal medicine services designed to support your health at every stage of life. Whether you're managing a chronic condition, recovering from an illness, or simply staying on top of preventive care, our practice provides expert medical attention with a personal touch. From routine check-ups to specialized treatments, we’re here to help you feel your best—every day.

Medication Management

Ongoing review and adjustment of prescriptions to ensure safe, effective treatment and minimize side effects or interactions.

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Annual Physical Exams

Comprehensive yearly check-ups to assess overall health, screen for potential issues, and support preventive care.

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Sick/Illness Visits

Prompt appointments for acute symptoms such as fever, cough, or infections, with personalized treatment plans to help you recover quickly.

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Pre-Operative (Pre-Op) Visits

Thorough evaluations and medical clearance before surgery to ensure you're ready and safe for your procedure.

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Medical Marijuana Cards

Evaluation and certification for eligible patients seeking medical marijuana as part of their treatment plan, in accordance with Maryland state guidelines.

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About  David a. Charles, Md

At David A. Charles, MD, we are dedicated to providing high-quality, patient-centered internal medicine care to adults in Montgomery County and beyond. Led by Dr. David Charles—a board-certified physician with over 15 years of experience—our practice focuses on building lasting relationships through trust, compassion, and clinical excellence. We offer a wide range of services, from managing chronic conditions like diabetes and high blood pressure to treating acute illnesses and providing preventive care. Whether you're visiting for a routine check-up or a complex health concern, our goal is to help you feel heard, supported, and on the path to better health.

  • Client-Centered Approach
  • Results-Focused Mindset
  • Regulatory Expertise
  • Innovative Thinking
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David a. Charles, Md
  • Client-Centered Approach
  • Results-Focused Mindset
  • Regulatory Expertise
  • Innovative Thinking
LEARN MORE

Request Your Appointment Today!

In-network insurances

99% of patients have successfully booked with these insurances

At David A. Charles, MD, we strive to make quality healthcare accessible by accepting a wide range of insurance plans. Our practice is in-network with many major providers, including Aetna, CareFirst BlueCross BlueShield, UnitedHealthcare, First Health, MVP Health Care, Highmark Blue Cross Blue Shield, and Curative, among others. We also accept Medicare and various PPO and HMO plans. To ensure coverage, we recommend verifying your insurance benefits with our office prior to your appointment.

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna Better Health
  • Aetna HMO
  • Aetna PPO
  • All Savers Insurance
  • AmeriGroup
  • AmeriGroup Medicaid (Managed)
  • Assurant Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield Federal Employees Program
  • Blue Cross Blue Shield of South Carolina
  • Blue Cross Blue Shield PPO
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield Federal Employees Program
  • CareFirst Blue Cross Blue Shield PPO
  • CareFirst BlueCross BlueShield
  • CareFirst BlueCross BlueShield Medicaid (Managed)
  • CareFirst BlueCross BlueShield Medicare
  • CHAMPVA
  • Cigna
  • Cigna PPO
  • Cigna-HealthSpring
  • GEHA
  • Humana
  • Innovation Health
  • Johns Hopkins Employer Health Programs

Book an appointment

If you have any questions, concerns, or comments please fill out the short contact form below. You can also reach us by calling us at (301) 738-8846

Contact Us

Accepted Insurances

And many more commercial health insurances.

  • VA Anthem Medicaid
  • Atena Medicaid
  • Anthem Health Keepers
  • Humana
  • Blue Cross Blue Shield
  • Optimal Health