NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Stephen Schlaffer, D.C.

Chiropractor in Agawam, MA · enumerated 2006 · practices at Joesph S Schlaffer.

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

National Provider Identifier

1811922602

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Stephen Schlaffer
Credential D.C.
Sex Male
Practice address 192 Shoemaker Ln, Agawam, MA, 01001
Phone (413) 789-1369
Fax (413) 789-7136
Enumeration date Jul 11, 2006
Last updated in NPPES May 23, 2008

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 499 (MA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
042739973 Other MA TAX IDENTIFICATION NUMBE
1604902 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 specialty is Joseph Schlaffer?
Joseph Schlaffer is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-23.