NPI Portal NPI Lookup & Verification

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John C. Maher, MD

Ophthalmology Physician in Pittsburgh, PA · enumerated 2005 · practices at Urologic Associates of Western Pennsylvania, Ltd..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003801176

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Registry record

Entity type Individual (Type 1)
Name John C. Maher
Credential MD
Sex Male
Practice address 200 Delafield Road, 200 St. Margaret Medical Arts Bldg. Suite 2020, Pittsburgh, PA, 15215
Phone (412) 784-9060
Fax (412) 784-0203
Enumeration date Sep 15, 2005
Last updated in NPPES Aug 28, 2008

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD028164E (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is John Maher?
John Maher is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-28.