Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Samuel Gladstone, MD

Family Medicine Physician in Amherst, MA · enumerated 2006 · practices at Samuel Gladstone, MD.

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

National Provider Identifier

1134188220

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Registry record

Entity type Individual (Type 1)

Name Mr. Samuel Gladstone

Credential MD

Sex Male

Practice address Amherst, MA, 01002

Phone (413) 253-2300

Fax (413) 256-0464

Enumeration date Mar 20, 2006

Last updated in NPPES Nov 28, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 55035 (MA) 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
2358324	Other	MA	AETNA
706042	Other	MA	CONNECTICARE
3029671	Medicaid	MA	-
71777	Other	MA	HARVARD PILGRIM
10248501	Other	MA	CIGNA
J06871	Other	MA	BCBSMA
720950	Other	MA	TUFTS
000000007610	Other	MA	BMC
12640	Other	MA	HNE

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 Samuel Gladstone's NPI record?

Cross-check NPI 1134188220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1134188220 active?

Yes, as of the latest NPPES snapshot, NPI 1134188220 is active (record last updated 2012-11-28).

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Samuel Gladstone, MD Family Medicine Physician · Amherst, MA NPI 1659533552

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-28.