Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel W. Weiswasser, M.D.

Internal Medicine Physician in Agawam, MA · enumerated 2006 · practices at Riverbend Medical Group, Inc.

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

National Provider Identifier

1437117462

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Registry record

Entity type Individual (Type 1)

Name Daniel W. Weiswasser

Credential M.D.

Sex Male

Practice address 230 Main St, Agawam, MA, 01001

Phone (413) 789-8010

Fax (413) 789-5171

Enumeration date May 1, 2006

Last updated in NPPES Feb 26, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 221130 (MA) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 221130 (MA) Secondary

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
2065142	Medicaid	MA	-

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 Daniel Weiswasser?

The National Provider Identifier (NPI) for Daniel Weiswasser is 1437117462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Daniel Weiswasser practice?

The practice location on file with NPPES is in Agawam, 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 2016-02-26.