Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greylock Ear Nose and Throat Associates PC

Q: What is the NPI number for Greylock Ear Nose and Throat Associates PC?

The NPI for Greylock Ear Nose and Throat Associates PC is 1386842714, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Pittsfield, MA · enumerated 2007 · authorized official Jean Hamilton, Medical Secretary.

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

National Provider Identifier

1386842714

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Registry record

Entity type Organization (Type 2)

Legal business name Greylock Ear Nose and Throat Associates PC

Practice address 510 North St, Pittsfield, MA, 01201

Phone (413) 443-4800

Fax (413) 442-9701

Enumeration date Jul 6, 2007

Last updated in NPPES Jan 29, 2013

Taxonomy & classification

174400000X Specialist Other Service Providers · License 48706 (MA) Primary

Authorized official

Name Jean Hamilton

Title Medical Secretary

Phone (413) 443-4800

Other identifiers

Identifier	Type	State	Issuer
0156485	Medicaid	MA	-
10925	Other	MA	HEALTH NEW ENGLAND
776514	Other	MA	TUFTS
I22280	Other	MA	BCBS
04588	Other	MA	MVP
0482720	Other	MA	AETNA
000000020943	Other	MA	BOSTON MEDICAL HEALTHNET

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 Greylock Ear Nose and Throat Associates PC?

The NPI for Greylock Ear Nose and Throat Associates PC is 1386842714, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Greylock Ear Nose and Throat Associates PC?

NPPES lists Jean Hamilton (Medical Secretary) as the authorized official for this organization.

Providers at this address

Browse all →

Charles Wohl Internal Medicine Physician · Pittsfield, MA NPI 1932167558 Donald Burt Geriatric Medicine (Internal Medicine) Physician · Pittsfield, MA NPI 1568416576 Robert Cella Rheumatology Physician · Pittsfield, MA NPI 1477507481 Berkshire Ear, Nose, Throat and Audiological Associates, P.C. Otolaryngology Physician · Pittsfield, MA NPI 1588772396 John Loiodice Otolaryngology Physician · Pittsfield, MA NPI 1275641029 Bonnie Chard Physician Assistant · Pittsfield, MA NPI 1083722862 Ellis Fribush Cardiovascular Disease Physician · Pittsfield, MA NPI 1427137637 Eugene Leibowitz Neurological Surgery Physician · Pittsfield, MA NPI 1043369713

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-29.