NPPES file of Aug 9, 2026

Gregory Karcnik, MD

Addiction Medicine (Psychiatry & Neurology) Physician · Goshen, NY

Gregory Karcnik, MD is an addiction medicine (psychiatry & neurology) physician with a practice address in Goshen, New York, and NPI 1992895320, issued on Oct 14, 2006. Check the license (New York 172774-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1992895320
Name
Gregory Karcnik
Credential
MD
Primary taxonomy
Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
License number
172774-1 NY
Self-reported in NPPES; status is on the state search
Practice location
3 Coates Dr, Goshen, NY 10924
Phone
(845) 291-0999
Enumerated
Oct 14, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(845) 294-8921
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 3 Coates Dr

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

  1. Mark Bernstein, MDPsychiatry Physician1659384428
  2. Louise Contin, LCSWClinical Social Worker1245310465
  3. Mark Elba, LCSWSocial Worker1083627855
  4. Mary Graham, LCSWClinical Social Worker1023108446
  5. Diane Greenwald, MS, LCSWClinical Social Worker1295870368
  6. Stan Greenwald, PHDClinical Psychologist1265445175

Verify Gregory Karcnik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 172774-1
    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
Open the New York license search

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97% fewer Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024

24 Medicare Part D claims, against an average of 870 among the 264 providers of this specialty who prescribed in Part D.

  1. Gregory Karcnik24
  2. Specialty average870

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.

Gregory Karcnik among 41 addiction medicine (psychiatry & neurology) physician records in New York

Gregory Karcnik, MD is one of 41 addiction medicine (psychiatry & neurology) physician records with a practice address in New York. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 56% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 39% of these records are
  • Record last updated2007 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A0401X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Psychiatry & Neurology) Physician providers in New York

There are 41 addiction medicine (psychiatry & neurology) physician records in New York.

The 8 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Sabina Fink, M.D.Glen Oaks, NY 110041013327220
  2. Roopali Parikh, M.D.Glen Oaks, NY 110041760849475
  3. Michael Eisenberg, MD, MPHGreat Neck, NY 110211881703452
  4. Ramaswamy Viswanathan, M.D.Brooklyn, NY 112031215986831
  5. Zlatin IvanovBrooklyn, NY 112061982883963
  6. Lynda Smith Harris, MDBrooklyn, NY 112061831272947
  7. Matthew Warren, MDBrooklyn, NY 112061760624241
  8. Alejo Parellada, M.D.Brooklyn, NY 112381417070442

Common questions

What is Gregory Karcnik, MD's NPI number?

Gregory Karcnik, MD's National Provider Identifier (NPI) is 1992895320, issued on Oct 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Karcnik, MD located?

The NPPES record lists a practice address at 3 Coates Dr, Goshen, NY, 10924. Phone: (845) 291-0999. Providers update this record themselves, so call before visiting.

How can I verify Gregory Karcnik, MD's license?

NPPES lists New York license number 172774-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Karcnik, MD prescribe under Medicare Part D?

In 2024, Gregory Karcnik, MD had 24 Medicare Part D claims; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.