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Addiction Medicine Doctors (Internal Medicine) in Maryland

Data updated monthly · Last refresh October 2026

14 Addiction Medicine (Internal Medicine) providers practice in Maryland, including 7 (50%) offering telehealth. The largest concentration is in Baltimore. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

14providers
7telehealth
Baltimoretop city

Addiction Medicine (Internal Medicine) by city in Maryland

Choose a city to see providers there.

Addiction Medicine (Internal Medicine) in Baltimore10 providers
Addiction Medicine (Internal Medicine) in Towson1 providers
Addiction Medicine (Internal Medicine) in Oakland1 providers
Addiction Medicine (Internal Medicine) in Salisbury1 providers
Addiction Medicine (Internal Medicine) in Easton1 providers

Where Addiction Medicine Doctors (Internal Medicine) in Maryland practice

From CMS Medicare enrollment records covering 9 of the 14 providers listed here (64%). Providers who do not bill Medicare are not included in these figures.

Largest practice groups

Group (as registered with Medicare)Addiction Medicine Doctors (Internal Medicine)All clinicians in groupMain city
Johns Hopkins University52,886Baltimore
Johns Hopkins University2711Baltimore

Hospitals where they hold privileges

HospitalCityOwnershipCMS star ratingAddiction Medicine Doctors (Internal Medicine) affiliated
Johns Hopkins Hospital, theBaltimoreNonprofit5 of 55
Johns Hopkins Bayview Medical CenterBaltimoreNonprofit3 of 53

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Addiction Medicine (Internal Medicine) providers in Maryland

Listed by city, largest first. 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. Aditi Ringwala
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (443) 462-3400
Dr. Alia Bodnar, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 550-2999
Dr. Cassandra Chioma, MD
Baltimore, MD · No drug or device payments recorded (2025) · (410) 554-2000
Dr. Howard Cohen, MD
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 764-6764
Dr. Jessica Ratner, MD
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 550-2999
Dr. Lia Penn
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 550-0100
Dr. Megan Buresh, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 550-2999
Dr. Michael Hayes, MD
Baltimore, MD · No drug or device payments recorded (2025) · (410) 225-8240
Dr. Michael Rose, MD, MPH
Baltimore, MD · No drug or device payments recorded (2025) · (701) 261-8521
Dr. Terrence Fitzgerald, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 925-1220
Dr. Bradley Levin, M.D.
Easton, MD · No drug or device payments recorded (2025) · (833) 510-4357
Dr. John Robyn Diez, MD
Oakland, MD · No drug or device payments recorded (2025) · Telehealth · (301) 533-2190
Dr. Arthur Marsh, M.D.
Salisbury, MD · No drug or device payments recorded (2025) · (410) 548-7500
Dr. Fidelis Define, MD
Towson, MD · No drug or device payments recorded (2025) · (410) 227-7149

Common questions

How many Addiction Medicine (Internal Medicine) providers are in Maryland?

There are 14 Addiction Medicine (Internal Medicine) providers with active NPI records practicing in Maryland, according to federal NPPES data refreshed monthly.

Do Addiction Medicine (Internal Medicine) providers in Maryland offer telehealth?

Yes. 7 of the 14 Addiction Medicine (Internal Medicine) providers in Maryland (about 50%) report offering telehealth services in CMS data.

Which cities in Maryland have the most Addiction Medicine (Internal Medicine) providers?

Baltimore (10), Towson (1), Oakland (1) have the highest concentration of Addiction Medicine (Internal Medicine) providers in Maryland.

Where does this data come from?

Provider counts and profiles 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.

Which hospitals do Addiction Medicine Doctors (Internal Medicine) in Maryland work at?

According to CMS facility affiliation records, the Maryland hospitals where the most Addiction Medicine Doctors (Internal Medicine) hold privileges are Johns Hopkins Hospital, the in Baltimore; Johns Hopkins Bayview Medical Center in Baltimore.

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Related

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. Are you a Addiction Medicine (Internal Medicine) in Maryland? Get featured.