NPPES file of Aug 9, 2026

Maryellen Gregory Hammill

Psychiatric/Mental Health Nurse Practitioner · Breezy Point, NY

Maryellen Gregory Hammill is a psychiatric/mental health nurse practitioner with a practice address in Breezy Point, New York, and NPI 1740879907, issued on Jan 12, 2021. Check the license (New York F403272-01, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740879907
Name
Maryellen Gregory Hammill
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
F403272-01 NY
Self-reported in NPPES; status is on the state search
Practice location
21 Fulton Walk, Breezy Point, NY 11697
Phone
(917) 561-1379
Enumerated
Jan 12, 2021
Record last updated
Jan 12, 2021 (not updated in 5 years: call before relying on the address or phone)
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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Verify Maryellen Gregory Hammill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license F403272-01
    Check 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
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1 psychiatric/mental health nurse practitioner records list a practice address in Breezy Point

They are 1 of the 29 NPPES records with a practice address in Breezy Point, and 4,129 psychiatric/mental health nurse practitioner records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other psychiatric/mental health nurse practitioner records in New York

  1. Lori Aavik, DNPNew York, NY1770398802
  2. Jeanne Abatemarco, N.P.P., M.S., R,NNew York, NY1043754989
  3. Geraldine Abbatiello, PHD, GNP, PMHNPChappaqua, NY1235314352
  4. Romane Abbensetts, PMHNPCommack, NY1437616240
  5. Arias Abbruzzi Davis, DNP-BCNew York, NY1073294377
  6. Nadine Abdellatif, DNP, PMHNPOrchard Park, NY1225613615
  7. Nikesha AbdoolBrooklyn, NY1508358011
  8. Kemi Abdul, PSYCHIATRIC NPBrooklyn, NY1437318755
  9. Bernadette Abeel, NURSE PRACTITIONERAlbany, NY1710657986
  10. Robert Abel, NURSE PRACTITIONERNew York, NY1215184445

Common questions

What is Maryellen Gregory Hammill's NPI number?

Maryellen Gregory Hammill's National Provider Identifier (NPI) is 1740879907, issued on Jan 12, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Maryellen Gregory Hammill located?

The NPPES record lists a practice address at 21 Fulton Walk, Breezy Point, NY, 11697. Phone: (917) 561-1379. Providers update this record themselves, so call before visiting.

How can I verify Maryellen Gregory Hammill's license?

NPPES lists New York license number F403272-01, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.