Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William B Watt, MD

Otolaryngology Physician in N Andover, MA · enumerated 2005.

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

National Provider Identifier

1831191295

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Registry record

Entity type Individual (Type 1)

Name William B Watt

Credential MD

Sex Male

Practice address 198 Massachusetts Ave, #103, N Andover, MA, 01845

Phone (978) 685-7550

Fax (978) 686-5565

Enumeration date Aug 15, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 50893 (MA) 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
7509	Other	-	NH LICENSE
0005697	Other	-	NHP
976977	Other	-	NETWORK HEALTH
26396	Other	-	AAO HNS
B20283901	Other	-	CIGNA
220688	Other	-	MMS
6142079	Medicaid	MA	-
1837570 002	Other	-	CIGNA PAL
J02180	Other	-	BS HMO
19482	Other	-	H PIL
0108532Y0MA01	Other	-	NH BS
11677	Other	-	FALLON
50893	Other	-	MA LICENSE
JO2180	Other	-	BS MA
050893	Other	-	SECURE HORIZ
85670	Other	-	AETNA USHC

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.

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Frequently asked questions

Is NPI 1831191295 active?

Yes, as of the latest NPPES snapshot, NPI 1831191295 is active (record last updated 2023-03-07).

How do I verify William Watt's NPI record?

Cross-check NPI 1831191295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Miguel Valdez Surgical Physician Assistant · N Andover, MA NPI 1619978988 Robert Cipro Otolaryngology Physician · N Andover, MA NPI 1033111646 Yookyung Selig Otolaryngology Physician · N Andover, MA NPI 1245232859 William Postal Otolaryngology Physician · N Andover, MA NPI 1154323764 Prerak Shah Otolaryngology Physician · N Andover, MA NPI 1407848039 Luba Tsypkin MD LLC Family Medicine Physician · North Andover, MA NPI 1780660597 New England Ear Nose & Throat/Facial Plastic Surgery,P.C. Specialist · N Andover, MA NPI 1437197092 North Andover Dermatology Inc Procedural Dermatology Physician · N Andover, MA NPI 1184637464

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.