NPPES file of Aug 9, 2026

Lewis Kaufman, MD

Nephrology Physician · New York, NY

Lewis Kaufman, MD is a nephrology physician with a practice address in New York, New York, and NPI 1811915630, issued on Jul 18, 2006. Check the license (New York 214563, 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
1811915630
Name
Lewis Kaufman
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
214563 NY
Self-reported in NPPES; status is on the state search
Practice location
5 East 98TH Street, New York, NY 10029
Phone
(212) 241-4060
Enumerated
Jul 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(212) 987-0389
Medicare enrollment
Enrolled (PECOS I20040909000256); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 1998
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 5 East 98TH Street

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

  1. Shradha Agarwal, MDAllergy & Immunology Physician1740320126
  2. Gregory Amend, M.D.Urology Physician1588076798
  3. Sharmila Anandasabapathy, M.D.Gastroenterology Physician1740380682
  4. Antonios Arvelakis, MDTransplant Surgery Physician1558377044
  5. Tracy Breen, MDEndocrinology, Diabetes & Metabolism Physician1396777413
  6. Paula Busse, MDAllergy & Immunology (Internal Medicine) Physician1134147937

Verify Lewis Kaufman 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 214563
    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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63% fewer Medicare Part D claims than the average nephrology physician in 2024

546 Medicare Part D claims for 42 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Lewis Kaufman546
  2. Specialty average1,465

Most prescribed

  1. Calcium Acetate63 claims
  2. Sevelamer Carbonate56 claims
  3. Gabapentin31 claims
  4. Velphoro27 claims
  5. Carvedilol25 claims
  6. Albuterol Sulfate Hfa21 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 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).

Lewis Kaufman among 1,049 nephrology physician records in New York

Lewis Kaufman, MD 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 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 47% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1998 · median 1999 among the 764 with a school on file
  • Record last updated2007 · 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. Jonathan Himmelfarb, M.D.New York, NY 100291275533903
  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 Lewis Kaufman, MD's NPI number?

Lewis Kaufman, MD's National Provider Identifier (NPI) is 1811915630, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lewis Kaufman, MD located?

The NPPES record lists a practice address at 5 East 98TH Street, New York, NY, 10029. Phone: (212) 241-4060. Providers update this record themselves, so call before visiting.

How can I verify Lewis Kaufman, MD's license?

NPPES lists New York license number 214563, 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 Lewis Kaufman, MD prescribe under Medicare Part D?

In 2024, Lewis Kaufman, MD had 546 Medicare Part D claims for 42 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.