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Internal Medicine

Experienced Care for the Whole Adult Patient

Comprehensive, personalized internal medicine in Rockville — blending preventive wellness with evidence-based treatment for chronic and acute conditions.

Accepting New Patients

Dr. Lahr is currently accepting new patients for both preventive care and chronic condition management.

(301) 315-6380
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Dr. Daniel Lahr in professional medical setting
About Dr. Lahr

A Physician Who Listens First

Dr. Daniel Lahr brings years of clinical experience to his practice in Rockville, Maryland — treating each patient as an individual, not a chart.

He believes that effective care begins with understanding the full picture: your medical history, your lifestyle, and your goals. Whether you're managing a chronic condition, addressing a new concern, or prioritizing preventive health, Dr. Lahr provides thoughtful, evidence-based guidance in a setting where you are never rushed.

Comprehensive preventive care
Chronic disease management
Personalized treatment plans
Collaborative, patient-centered approach
Services

Comprehensive Internal Medicine

From routine screenings to complex chronic care, Dr. Lahr offers a full spectrum of services tailored to adult health needs.

Preventive Care & Wellness

Annual physicals, health screenings, immunizations, and lifestyle counseling to keep you healthy and catch issues early.

Chronic Disease Management

Expert management of diabetes, hypertension, heart disease, thyroid disorders, and other long-term conditions.

Acute Illness & Injury

Prompt diagnosis and treatment for infections, minor injuries, seasonal illnesses, and other urgent health concerns.

Diagnostic Testing

In-office lab work, EKG, and coordination of specialized tests to ensure accurate diagnosis and timely follow-up.

Coordination of Care

Seamless referrals and communication with specialists to ensure you receive coordinated, comprehensive care.

Medication Management

Thorough review and optimization of prescriptions, ensuring safe and effective pharmacotherapy for your conditions.

New Patients

Your Health Journey Starts Here

We make it simple to begin your care with Dr. Lahr. Whether you're switching providers or establishing care for the first time, we'll guide you through every step.

  1. 01

    Call to Schedule

    Reach us at (301) 315-6380 to book your initial appointment.

  2. 02

    Complete Intake

    Fill out a brief health history form before your visit (available online or in-office).

  3. 03

    Meet Dr. Lahr

    Arrive 10 minutes early, then enjoy a thorough, unhurried consultation.

Welcome area at Dr. Lahr's office in Rockville
Most Major Insurance Plans Accepted
Conveniently Located in Rockville, MD
Evening & Weekend Appointments Available
Contact

Get in Touch

Ready to schedule an appointment or have questions? Reach out — we're here to help.

Address

9707 Medical Center Dr
Rockville, MD 20850-3348

Office Hours

Mon – Fri: 9:00 AM – 5:00 PM
Evening & Weekend slots available

Request an Appointment

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