Registry data as of Aug 27, 2026

Mary Westerfield, FNP

Family Nurse Practitioner · Horseheads, NY

Mary Westerfield, FNP is a family nurse practitioner with a practice address in Horseheads, New York, and NPI 1063395622, issued on Jul 30, 2025. Check the license with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1063395622
Name
Mary Westerfield
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
Practice location
100 John Roemmelt Dr Ste 302, Horseheads, NY 14845
Phone
(607) 873-1810
Enumerated
Jul 30, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 John Roemmelt Dr Ste 302

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Muhammad Khan, MDFamily Medicine Physician1619559531
  2. Kathleen Machuga, NPFamily Nurse Practitioner1538210752
  3. Abdelkader Mallouk, MD, ODOptometrist1407949621
  4. Sean Stryker, MDFamily Medicine Physician1558354936

Verify Mary Westerfield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

One hospital or facility affiliation

  1. Arnot Ogden Medical CenterHorseheads, NY · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

21 family nurse practitioner records list a Horseheads practice address

They are 21 of the 310 NPPES records with a Horseheads practice address, and 13,030 family nurse practitioner records in New York.

Other family nurse practitioner records in New York

  1. Carolyn A'Hearn, NPSyracuse, NY1093435554
  2. Lindsey Aanonsen, FNPStaten Island, NY1386368926
  3. Abigail Aaron, FNPNew York, NY1548125594
  4. Memoudou Abalola, NPBronx, NY1154580520
  5. Jennifer Abate, FNP-BCNew York, NY1568134732
  6. Karen Abate, PHD, APRN- BC, FNAPNew York, NY1669599585
  7. Tatiana AbayaBronx, NY1366323958
  8. Evilina AbayevaFresh Meadows, NY1932929585
  9. Dalia AbbasRockville Centre, NY1871425363
  10. Toufeeq Abbasi, NPNew York, NY1184632655

Common questions

What is Mary Westerfield, FNP's NPI number?

Mary Westerfield, FNP's National Provider Identifier (NPI) is 1063395622, issued on Jul 30, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mary Westerfield, FNP located?

The NPPES record lists a practice address at 100 John Roemmelt Dr Ste 302, Horseheads, NY, 14845. Phone: (607) 873-1810. Providers update this record themselves, so call before visiting.

How can I verify Mary Westerfield, FNP's license?

Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.