Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ann Marie Witheridge, APN,C

Family Nurse Practitioner in Rahway, NJ · enumerated 2007.

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

National Provider Identifier

1265554117

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ann Marie Witheridge

Credential APN,C

Sex Female

Practice address 126 E. Lincoln Ave, Merck & Co., Pob 2000, Ry 59-10, Rahway, NJ, 07065

Phone (732) 594-0704

Fax (732) 594-3548

Enumeration date Apr 4, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00084700 (NJ) Primary

Other identifiers

Identifier	Type	State	Issuer
0085243	Medicaid	NJ	-

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

Where does Ann Witheridge practice?

The practice location on file with NPPES is in Rahway, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ann Witheridge?

The National Provider Identifier (NPI) for Ann Witheridge is 1265554117, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.