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

Individual provider Addiction Medicine (Internal Medicine) Physician · NPI 1114981065

Alan Mark Geringer, MD is an Urology in Baltimore, Maryland. Graduated from Medical College of Wisconsin in 1976, 50 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
50
Trained at
Medical College of Wisconsin
Licensed in
MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2500 W Rogers Ave
Baltimore, MD 21215-4131
Phone: (443) 970-3608
Fax: (949) 561-4415
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence D29143 (MD)
Addiction Medicine (Internal Medicine) Physician Taxonomy 207RA0401X · Licence D29143 (MD)

Record details

NPI number1114981065
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 15, 2006
Last updated in NPPESSeptember 3, 2025
Certification dateSeptember 3, 2025

Medicare enrollment

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

Medicare specialtyUROLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1976 (50 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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