Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Serena Margaret Allen, C-PNP

Pediatric Nurse Practitioner in Ossining, NY · enumerated 2007.

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

National Provider Identifier

1326231721

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Serena Margaret Allen

Credential C-PNP

Sex Female

Practice address 165 Main St, Open Door Family Medical Center, Ossining, NY, 10562

Phone (914) 941-1263

Fax (914) 941-8626

Enumeration date Aug 20, 2007

Last updated in NPPES Feb 9, 2016

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP 17375 (CA) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F382534 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
04219072	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1326231721 active?

Yes, as of the latest NPPES snapshot, NPI 1326231721 is active (record last updated 2016-02-09).

How do I verify Serena Allen's NPI record?

Cross-check NPI 1326231721 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-09.