Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Andrew S. Treibwasser, MD

Anesthesiology Physician in Warwick, RI · enumerated 2006.

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

National Provider Identifier

1649237538

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Registry record

Entity type Individual (Type 1)

Name Mr. Andrew S. Treibwasser

Credential MD

Sex Male

Practice address 55 Lambert Lind Highway, Warwick, RI, 02886

Phone (401) 737-4711

Fax (401) 732-0419

Enumeration date Apr 26, 2006

Last updated in NPPES Aug 20, 2025

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 7503 (RI) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD07503 (RI) 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
7001946	Medicaid	RI	-

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

How do I verify Andrew Treibwasser's NPI record?

Cross-check NPI 1649237538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649237538 active?

Yes, as of the latest NPPES snapshot, NPI 1649237538 is active (record last updated 2025-08-20).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-20.