NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lawrence Chess Schweitzer, M.D.

Orthopaedic Surgery Physician in Danbury, CT · enumerated 2006.

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

National Provider Identifier

1366544777

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lawrence Chess Schweitzer
Credential M.D.
Sex Male
Practice address 33 Hospital Ave, Danbury, CT, 06810
Fax (203) 731-3213
Enumeration date Sep 5, 2006
Last updated in NPPES Jan 7, 2010

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 20517 (CT) 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
010021710CT01 Other - ANTHEM BCBS
1058878 Other - UNITED HEALTHCARE
001217108 Medicaid CT -
2V2655 Other - HLTHNET OF THE NORTHEAST
021710 Other - CONNECTICARE
0216160005 Other - CIGNA
Z5263 Other - OXFORD

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

Where does Lawrence Schweitzer practice?
The practice location on file with NPPES is in Danbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lawrence Schweitzer?
The National Provider Identifier (NPI) for Lawrence Schweitzer is 1366544777, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-07.