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William Heffernan,M.D.

Family Medicine Physician in Highland, NY · enumerated 2007 · authorized official William Heffernan, Owner.

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

National Provider Identifier

1699804427

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Registry record

Entity type Organization (Type 2)
Legal business name William Heffernan,M.D.
Practice address 240 S Riverside Rd, Highland, NY, 12528
Phone (845) 691-9200
Fax (845) 691-3992
Enumeration date Mar 5, 2007
Last updated in NPPES Feb 11, 2008

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 162027 (NY) Primary

Authorized official

Name William Heffernan
Title Owner
Phone (845) 691-9200

Other identifiers

Identifier Type State Issuer
01998769 Medicaid NY -

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 type of organization is William Heffernan,M.D.?
William Heffernan,M.D. is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-11.