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

Dr. John Edgar Griggs, M.D.

Q: What is the NPI number for John Griggs?

The National Provider Identifier (NPI) for John Griggs is 1649352246, a Type 1 (individual) record in the CMS NPPES registry.

Legal Medicine in Springfield, MA · enumerated 2006.

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

National Provider Identifier

1649352246

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Registry record

Entity type Individual (Type 1)

Name Dr. John Edgar Griggs

Credential M.D.

Sex Male

Practice address Springfield, MA, 01104

Phone (413) 737-2981

Fax (413) 737-1366

Enumeration date Oct 20, 2006

Last updated in NPPES Jul 9, 2007

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

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License 47626 (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
0114782	Other	MA	AETNA
721910	Other	MA	TUFTS
0184624	Medicaid	MA	-
12794	Other	MA	HEALTH NEW ENGLAND
21632	Other	MA	HARVARD PILGRIM
985269	Other	MA	NETWORK HEALTH
484153	Other	MA	CONNECTICARE
N51797	Other	MA	BLUE CROSS AND BLUE SHIEL

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

What is the NPI number for John Griggs?

The National Provider Identifier (NPI) for John Griggs is 1649352246, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Griggs practice?

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

Other providers at this practice address

Browse all →

Pamela Henderson Ophthalmology Physician · Springfield, MA NPI 1134122666 James Haines Internal Medicine Physician · Springfield, MA NPI 1497754170 William Belcastro Internal Medicine Physician · Springfield, MA NPI 1548269251 Dr. James Haines & Dr. William Belcastro, Ptr. Internal Medicine Physician · Springfield, MA NPI 1124027834 Luz Martin Psychiatry Physician · Springfield, MA NPI 1396739231 Savvas Papazoglou Specialist · Springfield, MA NPI 1043205438 Leonard Wagner Orthopaedic Surgery Physician · Springfield, MA NPI 1568457778 Steven Holsten Orthopaedic Surgery Physician · Springfield, MA NPI 1124013339

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.