Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Shaver, M.D.

Internal Medicine Physician in Mansfield, MA · enumerated 2006 · practices at Sturdy Health, Inc..

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

National Provider Identifier

1922021229

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Registry record

Entity type Individual (Type 1)

Name John Shaver

Credential M.D.

Sex Male

Practice address 200 Copeland Dr, Mansfield, MA, 02048

Phone (508) 339-4144

Fax (508) 261-9940

Enumeration date Jul 26, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 37294 (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
354	Other	-	FALLON
037294	Other	-	TUFTS
B10190201	Other	-	CIGNA
000000028125	Other	-	BMC HEALTHNET
0401171	Other	-	UHC
203660	Other	-	RIBCHIP
K10014	Other	MA	MABC
6263	Other	-	HPHC

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

Is NPI 1922021229 active?

Yes, as of the latest NPPES snapshot, NPI 1922021229 is active (record last updated 2007-07-08).

How do I verify John Shaver's NPI record?

Cross-check NPI 1922021229 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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