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Internal Medicine in Frederick, Maryland

Data updated monthly · Last refresh September 2026

59 Internal Medicine providers practice in Frederick, and 39% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Frederick

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Alan Rohrer, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 698-5050
Dr. Andrew Donelson, M.D.
Frederick, MD · $154 in drug and device payments (2025) · Telehealth · (301) 663-3836
Dr. Atrish Akhtar, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 662-8119
Dr. Belle Neri-aquino, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 694-1029
Dr. Bianca Udugampola, MD
Frederick, MD · No drug or device payments recorded (2025) · Telehealth · (301) 662-8119
Dr. Christian Smith, MD
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-4755
Dr. Christine Helinski, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 698-8374
Dr. Darrell Apple, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 619-7175
Dr. Eleanor Lannutti, D.O.
Frederick, MD · No drug or device payments recorded (2025) · (301) 694-7600
Dr. Elena Iarikova, MD
Frederick, MD · $122 in drug and device payments (2025) · (843) 237-3378
Dr. Eric Schoomaker, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 619-7175
Dr. Florin Rusu, MD
Frederick, MD · No drug or device payments recorded (2025) · (843) 237-3378
Dr. Gaffar Syed, MD
Frederick, MD · $633 in drug and device payments (2025) · Telehealth · (301) 698-9444
Dr. Gary Schwartz, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 696-2826
Dr. Ghulam Abbas, MD
Frederick, MD · $370 in drug and device payments (2025) · (301) 787-8030
Dr. Harminder Kaur, MD
Frederick, MD · $314 in drug and device payments (2025) · (301) 515-3333
Dr. Harpreet Gulati, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 512-1239
Dr. Hemen Shah, MD
Frederick, MD · $1,159 in drug and device payments (2025) · Telehealth · (301) 663-3836
Dr. Hirenkumar Shah, MD
Frederick, MD · $1,238 in drug and device payments (2025) · Telehealth · (301) 663-3836
Dr. Innocent Monya-tambi, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 624-5999
Dr. Jack Lu, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-4722
Dr. Jalal Saied, MD
Frederick, MD · $19 in drug and device payments (2025) · Telehealth · (301) 662-8119
Dr. James Grissom, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-3840
Dr. Jawad Malik, M.D.
Frederick, MD · $315 in drug and device payments (2025) · Telehealth · (240) 566-3300
Dr. John Piacentino, MD
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-3001
Dr. Julian Choe, M.D.
Frederick, MD · $19 in drug and device payments (2025) · (301) 228-2295
Dr. Kathy Weishaar, MD
Frederick, MD · $93 in drug and device payments (2025) · (240) 566-4722
Dr. Kevin Leary, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 619-7175
Dr. Kristin Conley, DO
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-7830
Dr. Margaret Oberman, M.D.
Frederick, MD · No drug or device payments recorded (2025) · Telehealth · (301) 662-8119
Dr. Mark Withers, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 620-1711
Dr. Marsha Shaw, MD
Frederick, MD · $113 in drug and device payments (2025) · Telehealth · (301) 662-8119
Dr. Matthew Feldman, MD MS
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-4722
Dr. Maya Salameh, M.D.
Frederick, MD · $224 in drug and device payments (2025) · Telehealth · (301) 631-6877
Dr. Michael Flessner, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 600-1506
Dr. Minesh Patel, MD
Frederick, MD · $34 in drug and device payments (2025) · (240) 566-3300
Dr. Narayan Nair, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 619-7175
Dr. Nyasha Mufuka, MD
Frederick, MD · No drug or device payments recorded (2025) · (240) 215-6310
Dr. Phuong Ho, MD
Frederick, MD · $3,998 in drug and device payments (2025) · (301) 663-5922
Dr. Pratima Pandey, MD
Frederick, MD · No drug or device payments recorded (2025) · (843) 237-3378
Dr. Purcell Bailey, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 698-8374
Dr. Richard Hill, MD
Frederick, MD · No drug or device payments recorded (2025) · (301) 624-1200
Dr. Robert Kaufmann, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 662-8119
Dr. Saeed Zaidi, M.D.
Frederick, MD · $232 in drug and device payments (2025) · Telehealth · (240) 215-1138
Dr. Safrina Hasan, DO
Frederick, MD · $248 in drug and device payments (2025) · (843) 237-3378
Dr. Sajjad Aziz, MD
Frederick, MD · $531 in drug and device payments (2025) · Telehealth · (301) 663-1566
Dr. Samuel Stoyak, M.D.
Frederick, MD · No drug or device payments recorded (2025) · Telehealth · (240) 215-6310
Dr. Sarah Lantzy, M.D.
Frederick, MD · No drug or device payments recorded (2025) · Telehealth · (301) 696-1000
Dr. Scarlet Louis-jean, MD, MBA
Frederick, MD · $93 in drug and device payments (2025) · Telehealth · (240) 215-6310
Dr. Sharathshiva Valaiyaduppu Subas, MD, MBBS
Frederick, MD · No drug or device payments recorded (2025) · (240) 566-3300

Conditions Internal Medicine providers in Frederick, Maryland commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Frederick, Maryland?

There are 59 Internal Medicine providers with active NPI records practicing in Frederick, according to federal NPPES data refreshed monthly.

How many Internal Medicine providers in Frederick received drug or device company payments?

23 of 59 (39%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Frederick treat?

Internal Medicine providers in Frederick commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Frederick Internal Medicine across Maryland

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.