NPPES file of Aug 9, 2026

Siobhan Sundel, GNP

Gerontology Nurse Practitioner · New York, NY

Siobhan Sundel, GNP is a gerontology nurse practitioner with a practice address in New York, New York, and NPI 1922075738, issued on Mar 1, 2006. Check the license (New York F3403961, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922075738
Name
Siobhan Sundel
Credential
GNP
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
F3403961 NY
Self-reported in NPPES; status is on the state search
Practice location
1440 Madison Avenue, New York, NY 10029
Phone
(212) 659-8552
Enumerated
Mar 1, 2006
Record last updated
Dec 23, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(212) 426-0349
Medicaid ID
02074091 NY
Medicare enrollment
Enrolled (PECOS I20051206000199); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1440 Madison Avenue

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

  1. Ravishankar Ramaswamy, MD, MSGeriatric Medicine (Family Medicine) Physician1003010406
  2. Veronica Rivera, M.D.Geriatric Medicine (Family Medicine) Physician1225274863

Verify Siobhan Sundel 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 F3403961
    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
Find the New York license search

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2.2 times the Medicare Part D claims of the average gerontology nurse practitioner in 2024

3,008 Medicare Part D claims for 580 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 28 claims were for opioids.

  1. Siobhan Sundel3,008
  2. Specialty average1,369

Most prescribed

  1. Atorvastatin Calcium225 claims
  2. Amlodipine Besylate182 claims
  3. Levothyroxine Sodium163 claims
  4. Losartan Potassium140 claims
  5. Gabapentin103 claims
  6. Mirtazapine95 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Icahn School OF Medicine AT Mount SinaiNew York, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gerontology Nurse Practitioner providers in New York

There are 392 gerontology nurse practitioner records in New York.

Other gerontology nurse practitioner records in New York

  1. Sumra Abbasi, NPValley Stream, NY1235760612
  2. Jacqueline Abbatiello, NPWestbury, NY1316553399
  3. Titilola Abiodun-Adelokiki, NURSE PRACTITIONERStaten Island, NY1053645481
  4. Nana Acheampong, R.N, AGNP-CHuntington Station, NY1174893754
  5. Trinidad Agtarap, GNP-BCWoodside, NY1295962041
  6. Tasleema Ahmadi, NPOceanside, NY1245076520
  7. Alberto AhumadaMiller Place, NY1437046851
  8. Alexandra Ajibade, AGPCNP-BCBrooklyn, NY1982982765
  9. Laurie AlonsoNorthport, NY1669680179
  10. Maria Alpano, NPNew York, NY1659447597

Common questions

What is Siobhan Sundel, GNP's NPI number?

Siobhan Sundel, GNP's National Provider Identifier (NPI) is 1922075738, issued on Mar 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Siobhan Sundel, GNP located?

The NPPES record lists a practice address at 1440 Madison Avenue, New York, NY, 10029. Phone: (212) 659-8552. Providers update this record themselves, so call before visiting.

How can I verify Siobhan Sundel, GNP's license?

NPPES lists New York license number F3403961, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Siobhan Sundel, GNP prescribe under Medicare Part D?

In 2024, Siobhan Sundel, GNP had 3,008 Medicare Part D claims for 580 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.