Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan D. Berkenwald, MD

Internal Medicine Physician in Amherst, MA · enumerated 2006.

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

National Provider Identifier

1033188636

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Registry record

Entity type Individual (Type 1)

Name Alan D. Berkenwald

Credential MD

Sex Male

Practice address 31 Hall Dr, Amherst, MA, 01002

Phone (413) 256-8561

Fax (866) 644-0869

Enumeration date Mar 16, 2006

Last updated in NPPES Jan 3, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 44660 (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
2425133	Other	MA	AETNA
04-3194547	Other	MA	PLAN VISTA
044660	Other	MA	CONNECTICARE
G01054	Other	MA	BCBSMA
04-3194547	Other	MA	CONSOLIDATED
27157	Other	MA	HEALTH NEW ENGLAND
04-3194547	Other	MA	UNICARE/GIC
69914	Other	MA	HARVARD PILGRIM
000000007564	Other	MA	BMC
04-3194547	Other	MD	PRIVATE HEALTHCARE SYSTEM
10216603	Other	MA	CIGNA
1033188636	Medicaid	MA	-
04-3194547	Other	MA	NORTHEAST HEALTH DIRECT
04-3194547	Other	MA	PRIVATE HEALTHCARE SYSTEM
04-3194547	Other	MA	NORTH AMERICAN PREFERRED
04-3194547	Other	MA	NORTHEAST HEALTHCARE ALLI
04-3194547	Other	MA	GREAT-WEST
044660	Other	MA	TUFTS

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

What is the NPI number for Alan Berkenwald?

The National Provider Identifier (NPI) for Alan Berkenwald is 1033188636, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alan Berkenwald practice?

The practice location on file with NPPES is in Amherst, 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 2024-01-03.