Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Lawrence Pfeifer, MD

Trauma Surgery Physician in Pittsfield, MA · enumerated 2005.

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

National Provider Identifier

1124001565

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Registry record

Entity type Individual (Type 1)

Name Dr. Joseph Lawrence Pfeifer

Credential MD

Sex Male

Practice address 777 North Street, Pittsfield, MA, 01201

Phone (413) 447-2745

Fax (413) 346-6703

Enumeration date Nov 21, 2005

Last updated in NPPES Aug 11, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 235309 (NY) Secondary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 235309 (NY) 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
01398645	Medicaid	NY	-

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 1124001565 active?

Yes, as of the latest NPPES snapshot, NPI 1124001565 is active (record last updated 2010-08-11).

How do I verify Joseph Pfeifer's NPI record?

Cross-check NPI 1124001565 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 2010-08-11.