NPPES file of Aug 9, 2026

Jonathan Himmelfarb, M.D.

Nephrology Physician · New York, NY

Jonathan Himmelfarb, M.D. is a nephrology physician with a practice address in New York, New York, and NPI 1275533903, issued on Jul 22, 2005. Check the license (New York 332523, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275533903
Name
Jonathan Himmelfarb
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
332523 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Gustave L Levy PL, New York, NY 10029
Phone
(212) 987-7208
Enumerated
Jul 22, 2005
Record last updated
Nov 11, 2024
Medicare enrollment
Enrolled (PECOS I20241112001640); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1983
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 1 Gustave L Levy PL

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

  1. Lila Abassi, M.D.Hospitalist Physician1871886606
  2. Erin AbbottStudent in an Organized Health Care Education/Training Program1699587170
  3. Ghadi AbboudDiagnostic Radiology Physician1740936822
  4. Richard Abel, M.D.Anesthesiology Physician1508148016
  5. Jessica Ables, M.D., PH.D.Psychiatry Physician1437543352
  6. Grant AbrahamsonStudent in an Organized Health Care Education/Training Program1194512590

Verify Jonathan Himmelfarb 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 332523
    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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The MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

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).

Jonathan Himmelfarb among 1,049 nephrology physician records in New York

Jonathan Himmelfarb, M.D. is one of 1,049 nephrology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1983 · median 1999 among the 764 with a school on file
  • Record last updated2024 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in New York

There are 1,049 nephrology physician records in New York.

The 8 nephrology physician records with the nearest ZIP codes

  1. Veronica Delaney, MDNew York, NY 100291043210297
  2. Lewis Kaufman, MDNew York, NY 100291811915630
  3. Jeffrey Olin, D.O.New York, NY 100291144258609
  4. Rajeev Rohatgi, MDNew York, NY 100291932128949
  5. Michael Ross, MDNew York, NY 100291851321368
  6. Bernd Schroppel, MDNew York, NY 100291689692469
  7. Martin Sedlacek, M.D.New York, NY 100291063455277
  8. Noam Spinowitz, MDNew York, NY 100291609894005

Common questions

What is Jonathan Himmelfarb, M.D.'s NPI number?

Jonathan Himmelfarb, M.D.'s National Provider Identifier (NPI) is 1275533903, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Himmelfarb, M.D. located?

The NPPES record lists a practice address at 1 Gustave L Levy PL, New York, NY, 10029. Phone: (212) 987-7208. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Himmelfarb, M.D.'s license?

NPPES lists New York license number 332523, 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.

What is Jonathan Himmelfarb, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.