Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James John Greaney Jr., PHARMD

Pharmacist in Belmont, MA · enumerated 2007.

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

National Provider Identifier

1538372321

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Registry record

Entity type Individual (Type 1)

Name Dr. James John Greaney Jr.

Credential PHARMD

Sex Male

Practice address 115 Mill St, Mclean Hospital Department of Pharmacy, Belmont, MA, 02478

Phone (617) 855-2451

Fax (617) 855-3720

Enumeration date May 8, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 19610 (MA) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

Where does James Greaney practice?

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

What is the NPI number for James Greaney?

The National Provider Identifier (NPI) for James Greaney is 1538372321, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.