Your Partner in Lifelong Health
Internal Medicine located in Rockville, MD
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.
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.
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.
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.
Annual Physical Exams
Comprehensive yearly check-ups to assess overall health, screen for potential issues, and support preventive care.
Sick/Illness Visits
Prompt appointments for acute symptoms such as fever, cough, or infections, with personalized treatment plans to help you recover quickly.
Pre-Operative (Pre-Op) Visits
Thorough evaluations and medical clearance before surgery to ensure you're ready and safe for your procedure.
Medical Marijuana Cards
Evaluation and certification for eligible patients seeking medical marijuana as part of their treatment plan, in accordance with Maryland state guidelines.
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.

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