NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alison O'Brien, DO

Internal Medicine Physician in Rochester, NY · enumerated 2013.

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

National Provider Identifier

1548604093

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alison O'Brien
Credential DO
Sex Female
Practice address 60 Greece Center Dr Ste 4, Rochester, NY, 14612
Phone (585) 602-0100
Fax (585) 453-9240
Enumeration date Apr 25, 2013
Last updated in NPPES Jun 29, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 287391 (NY) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 287391 (NY) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 287391 (NY) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
04797600 Medicaid NY -

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

Where does Alison O'Brien practice?
The practice location on file with NPPES is in Rochester, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alison O'Brien?
The National Provider Identifier (NPI) for Alison O'Brien is 1548604093, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-29.