Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Patricia Halligan, MD

Addiction Psychiatry Physician in Rochester, NY · enumerated 2006 · practices at The Unity Hospital of Rochester.

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

National Provider Identifier

1548299738

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Registry record

Entity type Individual (Type 1)

Name Patricia Halligan

Credential MD

Sex Female

Practice address 1565 Long Pond Rd, Chemical Dependency, Rochester, NY, 14626

Phone (585) 368-3600

Fax (585) 368-3915

Enumeration date Jul 1, 2006

Last updated in NPPES Jul 17, 2007

Taxonomy & licenses

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 201150 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
189462EU	Other	NY	PREFERRED CARE
P00388648	Other	NY	MEDICARE, RAILROAD

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

What is the NPI number for Patricia Halligan?

The National Provider Identifier (NPI) for Patricia Halligan is 1548299738, a Type 1 (individual) record in the CMS NPPES registry.

Where does Patricia Halligan practice?

The practice location on file with NPPES is in Rochester, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-17.