NPPES file of Aug 9, 2026

David Kochnower, PA

Physician Assistant · Ronkonkoma, NY

David Kochnower, PA is a physician assistant with a practice address in Ronkonkoma, New York, and NPI 1922654938, issued on Aug 15, 2019. 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, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922654938
Name
David Kochnower
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
Practice location
1941 Louis Kossuth Ave, Ronkonkoma, NY 11779
Phone
(631) 384-6487
Enumerated
Aug 15, 2019
Record last updated
Aug 15, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200229000050); accepts Medicare assignment
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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Verify David Kochnower 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
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96% fewer Medicare Part D claims than the average physician assistant in 2024

31 Medicare Part D claims for 26 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 22 claims were for opioids.

  1. David Kochnower31
  2. Specialty average830

Most prescribed

  1. Oxycodone-Acetaminophen11 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 2 group practices

  1. John T Mather Memorial HospitalPort Jefferson, NY
  2. Samaritan Medical Services PCWest Islip, NY

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

David Kochnower among 15,555 physician assistant records in New York

David Kochnower, PA 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 2019, is newer than 56% of them.

  • NPI issued2019 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2019 · median 2018 among the 8,158 with a school on file
  • Record last updated2019 · 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).

15 physician assistant records list a practice address in Ronkonkoma

They are 15 of the 714 NPPES records with a practice address in Ronkonkoma, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Anisa Ali-Perez, PALake Ronkonkoma, NY 117791255370540
  2. Nicole Geraghty, R PA CRonkonkoma, NY 117791427223494
  3. Sonia Gracia, PA-CRonkonkoma, NY 117791922675396
  4. Ahmad Halimi, PARonkonkoma, NY 117791750892345
  5. Brittany Kiss, PA-C, DATLake Ronkonkoma, NY 117791386197085
  6. Jillian Marsilio, PA-CRonkonkoma, NY 117791598229742
  7. Syed Masroor, PARonkonkoma, NY 117791437701604
  8. Jordan Michiel, PA-C, MPASLake Ronkonkoma, NY 117791114466216

Common questions

What is David Kochnower, PA's NPI number?

David Kochnower, PA's National Provider Identifier (NPI) is 1922654938, issued on Aug 15, 2019. An NPI identifies a provider in billing; it is not a license.

Where is David Kochnower, PA located?

The NPPES record lists a practice address at 1941 Louis Kossuth Ave, Ronkonkoma, NY, 11779. Phone: (631) 384-6487. Providers update this record themselves, so call before visiting.

How can I verify David Kochnower, PA's license?

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

How much does David Kochnower, PA prescribe under Medicare Part D?

In 2024, David Kochnower, PA had 31 Medicare Part D claims for 26 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.