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William F Horgan, DO

Pediatrics Physician in Milford, MA · enumerated 2006 · practices at Quest Diagnostics Massachusetts LLC.

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

National Provider Identifier

1871554758

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Registry record

Entity type Individual (Type 1)
Name William F Horgan
Credential DO
Sex Male
Practice address 176 West St, Milford, MA, 01757
Phone (508) 634-5050
Fax (508) 634-9621
Enumeration date Mar 30, 2006
Last updated in NPPES May 27, 2020

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 72303 (MA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
042472266 Other - ONE HEALTH PLAN
042472266 Other - PRIVATE HEALTHCARE SYSTEM
3072517 Other - WELFARE
J10465 Other - BLUE SHIELD INDEMNITY
9900123 Other - FALLON COMMUNITY HEALTH P
042472266 Other - THREE RIVERS
1060751 Other - FIRST HEALTH
J10465 Other - BLUE CARE ELECT
J10465 Other - BLUE SHIELD HMO BLUE
042472266 Other - HEALTHCARE VALUE MANAGEME
28916 Other - CHILDRENS MEDICAL SECURIT
7537302 Other - AETNA US HEALTHCARE
784146 Other - MVP HEALTH CARE
28916 Other - HEALTHY START
3072517 Medicaid MA -
6086350 Other - CIGNA HEALTH PLAN
AA1173 Other - HARVARD PILGRIM HEALTHCAR

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 Horgan?
William Horgan is registered in NPPES with the primary taxonomy of Pediatrics 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-27.