NPPES file of Aug 9, 2026

Jack Kevin Vassar, PA-C

Physician Assistant · New York, NY

Jack Kevin Vassar, PA-C is a physician assistant with a practice address in New York, New York, and NPI 1750661633, issued on Aug 23, 2011. Check the license (New York 014815, 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
1750661633
Name
Jack Kevin Vassar
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
014815 NY
Self-reported in NPPES; status is on the state search
Practice location
425 W 59TH St, New York, NY 10019
Phone
(212) 241-3919
Enumerated
Aug 23, 2011
Record last updated
Nov 13, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210311001546); 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 425 W 59TH St

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

  1. Lisa Abramson, M.D.Diagnostic Radiology Physician1962662221
  2. Lynn Allen, M.D.Endocrinology, Diabetes & Metabolism Physician1003809146
  3. Lisa Anderson, MDGynecologic Oncology Physician1568425767
  4. Milla Arabadjian, FNPFamily Nurse Practitioner1417181975
  5. Fadi Attiyeh, M.D.Surgical Oncology Physician1649377326
  6. Kathryn Baxter, N.P.Family Nurse Practitioner1962404566

Verify Jack Kevin Vassar 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 014815
    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

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

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49% fewer Medicare Part D claims than the average physician assistant in 2024

427 Medicare Part D claims for 169 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Jack Vassar427
  2. Specialty average830

Most prescribed

  1. Tamsulosin Hcl113 claims
  2. Alfuzosin Hcl Er49 claims
  3. Levofloxacin30 claims
  4. Testosterone23 claims
  5. Finasteride21 claims
  6. Valacyclovir20 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: $282.81

13 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jack Vassar$282.81
  2. Specialty average$841.65

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

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).

Jack Kevin Vassar among 15,555 physician assistant records in New York

Jack Kevin Vassar, PA-C is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 29% of them.

  • NPI issued2011 · 29% of these records are older, 69% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2011 · median 2018 among the 8,158 with a school on file
  • Record last updated2014 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3,108 physician assistant records list a practice address in New York

They are 3,108 of the 98,468 NPPES records with a practice address in New York, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Joseph Anselmo, PACNew York, NY 100191073529129
  2. David Charig, RPANew York, NY 100191538142468
  3. Marsha Dixon, PANew York, NY 100191205900446
  4. Luwella Edmonds, PANew York, NY 100191932255155
  5. Frank Fiumecaldo, PACNew York, NY 100191710993811
  6. Erica Korzekwinski, PACNew York, NY 100191811901747
  7. John Lubrano, RPACNew York, NY 100191437190006
  8. Camilo MarquezNew York, NY 100191326145400

Common questions

What is Jack Kevin Vassar, PA-C's NPI number?

Jack Kevin Vassar, PA-C's National Provider Identifier (NPI) is 1750661633, issued on Aug 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Jack Kevin Vassar, PA-C located?

The NPPES record lists a practice address at 425 W 59TH St, New York, NY, 10019. Phone: (212) 241-3919. Providers update this record themselves, so call before visiting.

How can I verify Jack Kevin Vassar, PA-C's license?

NPPES lists New York license number 014815, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Jack Kevin Vassar, PA-C prescribe under Medicare Part D?

In 2024, Jack Kevin Vassar, PA-C had 427 Medicare Part D claims for 169 beneficiaries; the average among physician assistant prescribers was 830. 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.