Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Raymond Chasse, MD

Otolaryngology Physician in Waterville, ME · enumerated 2006.

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

National Provider Identifier

1811094220

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Registry record

Entity type Individual (Type 1)

Name William Raymond Chasse

Credential MD

Sex Male

Practice address 325 B Kennedy Memorial Drive, Waterville, ME, 04901

Phone (207) 873-0737

Fax (207) 861-5446

Enumeration date Sep 20, 2006

Last updated in NPPES Oct 16, 2012

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 11743 (ME) 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
001940	Other	-	ANTHEM PIN 001940
M60981	Other	-	PIN M60981 GROUP M60980
114590099	Medicaid	ME	-
114590000	Medicaid	ME	-
040001080	Other	-	RR MEDICARE

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 William Chasse's NPI record?

Cross-check NPI 1811094220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811094220 active?

Yes, as of the latest NPPES snapshot, NPI 1811094220 is active (record last updated 2012-10-16).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-16.