Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Borj Tabayoyong, M.D.,PH.D

Urology Physician in Rochester, NY · enumerated 2011.

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

National Provider Identifier

1124319850

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Registry record

Entity type Individual (Type 1)

Name Dr. William Borj Tabayoyong

Credential M.D.,PH.D

Sex Male

Practice address 601 Elmwood Ave, Rochester, NY, 14642

Phone (585) 275-2838

Fax (585) 273-1068

Enumeration date Apr 28, 2011

Last updated in NPPES Jul 3, 2023

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 299919 (NY) 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.

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Frequently asked questions

How do I verify William Tabayoyong's NPI record?

Cross-check NPI 1124319850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124319850 active?

Yes, as of the latest NPPES snapshot, NPI 1124319850 is active (record last updated 2023-07-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-03.