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

Nicholas Robert Mahoney, MD

Individual provider Surgery Physician · NPI 1194875864

Nicholas Robert Mahoney, MD is an Ophthalmology in Baltimore, Maryland. Graduated from Perelman School of Med at the University of Pennsylvania in 2006, 20 years ago. Practices with Johns Hopkins University, a 2,855-clinician group. Licensed in Maryland and Pennsylvania.

Years since qualifying
20
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MD, PA
In the registry since
2007
Specialties on file
3
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

600 N Wolfe St
Baltimore, MD 21287-0005
Phone: (410) 955-1112
Fax: (410) 614-9987
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence D70837 (MD)
Surgery Physician Taxonomy 208600000X · Licence MT188147 (PA)
Ophthalmic Plastic and Reconstructive Surgery Physician Taxonomy 207WX0200X · Licence D70837 (MD)

Record details

NPI number1194875864
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 12, 2007
Last updated in NPPESApril 29, 2016

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2006 (20 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated
Practice locations6 on file with Medicare

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