NPPES file of Aug 9, 2026

Jennifer Cassidy, FNP

Nurse Practitioner · Smithtown, NY

Jennifer Cassidy, FNP is a nurse practitioner with a practice address in Smithtown, New York, and NPI 1053579524, issued on May 30, 2008. Check the license (New York F334886, 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
1053579524
Name
Jennifer Cassidy
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
F334886 NY
Self-reported in NPPES; status is on the state search
Practice location
260 Middle Country RD, Smithtown, NY 11787
Phone
(631) 265-5050
Enumerated
May 30, 2008
Record last updated
Dec 1, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(631) 265-3304
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 260 Middle Country RD

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

  1. Eileen Bishop, M.D.Specialist1356349708
  2. David Dagate, M.D.Specialist1790784395
  3. Ezra Deutsch, M.D.Specialist1356349716
  4. David Farr, M.D.Specialist1407854912
  5. Michael Fastenberg, M.D.Dermatology Physician1073735593
  6. Thomas Gee, RPHPharmacist1396077335

Verify Jennifer Cassidy 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 F334886    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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72% fewer Medicare Part D claims than the average nurse practitioner in 2024

308 Medicare Part D claims for 160 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Jennifer Cassidy308
  2. Specialty average1,109

Most prescribed

  1. Clopidogrel100 claims
  2. Metoprolol Succinate34 claims
  3. Cephalexin19 claims
  4. Brilinta15 claims
  5. Prasugrel Hcl15 claims
  6. Amiodarone Hcl12 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.

Industry payments in 2024: $819.30

32 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Cassidy$819.30
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Nurse Practitioner providers in New York

There are 3,097 nurse practitioner records in New York.

All 3,097 in New York → Every provider in Smithtown →

Other nurse practitioner records in New York

  1. Amra Abadzic, NPEast Syracuse, NY1750019683
  2. Monique AbarcaSmithtown, NY1538766902
  3. Sharon Abayev, FNPForest Hills, NY1346062320
  4. Maura Abbott, NP, PHDNew York, NY1881876415
  5. Younes Abdulla, NPAmherst, NY1730018961
  6. Nataliya Abel, NPRocky Point, NY1295066405
  7. Cindy AbelidoGreat Neck, NY1003582156
  8. Eric AblordeyMiddletown, NY1710820154
  9. Michael AboagyeMiller Place, NY1538448501
  10. Elsamma Abraham, ANPNew York, NY1043461668

Common questions

What is Jennifer Cassidy, FNP's NPI number?

Jennifer Cassidy, FNP's National Provider Identifier (NPI) is 1053579524, issued on May 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Cassidy, FNP located?

The NPPES record lists a practice address at 260 Middle Country RD, Smithtown, NY, 11787. Phone: (631) 265-5050. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Cassidy, FNP's license?

NPPES lists New York license number F334886, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Jennifer Cassidy, FNP prescribe under Medicare Part D?

In 2024, Jennifer Cassidy, FNP had 308 Medicare Part D claims for 160 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.