Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Eric Alvin Ritter, MD

Individual provider Hospitalist Physician · NPI 1659557593

Eric Alvin Ritter, MD is an Addiction Medicine in Baltimore, Maryland. Graduated from Meharry Medical College School of Medicine in 2006, 20 years ago. Practices as a sole proprietor and works from 3 locations. Licensed in Maryland.

Years since qualifying
20
Trained at
Meharry Medical College School of Medicine
Licensed in
MD
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1335 W Baltimore St
Baltimore, MD 21223-2402
Phone: (240) 856-3375
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2001 Medical Pkwy, Annapolis, MD 21401-3773 — (443) 481-1000
  • 703 Hunting Pl, Baltimore, MD 21229-1427 — (617) 842-8502

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence D71390 (MD)

Record details

NPI number1659557593
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 10, 2008
Last updated in NPPESDecember 17, 2021
Certification dateDecember 17, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyADDICTION MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolMEHARRY MEDICAL COLLEGE SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Accepts Medicare assignment Not indicated

Other providers in Baltimore