Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Shreefter, MD

Obstetrics & Gynecology Physician in Pittsfield, MA · enumerated 2005.

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

National Provider Identifier

1851382030

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Registry record

Entity type Individual (Type 1)

Name Michael J Shreefter

Credential MD

Sex Male

Practice address 777 North St, Suite 301, Pittsfield, MA, 01201

Phone (413) 499-8570

Fax (413) 499-8570

Enumeration date Nov 4, 2005

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 39265 (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
0019361	Other	-	NEIGHBORHOOD HEALTH PLAN
10034453	Other	-	CAPITAL DISTRICT PHP
I22236	Other	-	BLUE SHIELD
000000022179	Other	-	BMC HEALTH NET PLAN
2339988	Other	-	AETNA
043517461	Other	-	NO AMERICAN ADMIN
160039	Other	-	MVP SELECT
16406	Other	-	HEATH NEW ENGLAND
2045478	Medicaid	MA	-
41581	Other	-	HEALTHY START
043517461	Other	-	CIGNA
043517461	Other	-	HMC PPO
80314	Other	-	GIC INDEMNITY PLAN
A56012	Other	-	HARVARD COMM HEALTH
043517461	Other	-	CHAMPUS
160053242	Other	-	MEDICARE RAILROAD
043517461	Other	-	HCVM FIRST HEALTH
I22236	Other	-	HMO BLUE

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 Michael Shreefter?

The National Provider Identifier (NPI) for Michael Shreefter is 1851382030, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Shreefter practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.