Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William S Postal, MD

Otolaryngology Physician in N Andover, MA · enumerated 2005.

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

National Provider Identifier

1154323764

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Registry record

Entity type Individual (Type 1)

Name William S Postal

Credential MD

Sex Male

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

Phone (978) 685-7550

Fax (978) 686-5565

Enumeration date Aug 12, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 76188 (MA) Primary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 9431 (NH) Secondary

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
0727174-001	Other	-	CIGNA PAL
0013824	Other	-	NHP
J30820	Other	-	BS HMO
040007239	Other	-	MC RR
733650	Other	-	SECURE HORIZON
J30820	Other	-	BS MA
0109837Y0MA01	Other	-	NH BS
37479	Other	-	FALLON
472776	Other	-	AETNA USHC
76188	Other	-	MA LICENSE
B202840002	Other	-	CIGNA
9431	Other	-	NH LICENSE
976837	Other	-	NETWORK HEALTH
48349	Other	-	AAO HNS
19480	Other	-	H PIL
21845	Other	-	MMS

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

What specialty is William Postal?

William Postal is registered in NPPES with the primary taxonomy of Otolaryngology Physician. 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

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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 Watt Otolaryngology Physician · N Andover, MA NPI 1831191295 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.