NPPES file of Aug 9, 2026

Leah Ilyse Kaplan, MD

Internal Medicine Physician · New York, NY

Leah Ilyse Kaplan, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1285291237, issued on May 24, 2019. Check the license (New York 317100, 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
1285291237
Name
Leah Ilyse Kaplan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
317100 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Gustave L Levy PL, New York, NY 10029
Phone
(212) 241-3422
Enumerated
May 24, 2019
Record last updated
Jul 17, 2023
Medicare enrollment
Enrolled (PECOS I20240703002566); 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 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 Leah Ilyse Kaplan 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 317100
    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

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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

144 Medicare Part D claims for 51 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.

  1. Leah Kaplan144
  2. Specialty average3,176

Most prescribed

  1. Hydrocortisone12 claims
  2. Ozempic12 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. North Shore Medical Group OF The Mount Sinai School OF MedicineAstoria, NY

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

Leah Ilyse Kaplan among 12,067 internal medicine physician records in New York

Leah Ilyse Kaplan, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 85% of them.

  • NPI issued2019 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2019 · median 2002 among the 7,221 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,434 internal medicine physician records list a practice address in New York

They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Oluyemisi Ariyibi, M.D.New York, NY 100291639129612
  2. Priscilla Bresler, MDNew York, NY 100291770547291
  3. Muhammad Chaudhry, M.D.New York, NY 100291457391443
  4. Linda Decherrie, MDNew York, NY 100291982635579
  5. Maciej Domek, MDNew York, NY 100291598796013
  6. Mary FishmanNew York, NY 100291134127988
  7. Amrita Gupte, M.D.New York, NY 100291811957236
  8. Jaime Lopez-Santini, MDNew York, NY 100291295739944

Common questions

What is Leah Ilyse Kaplan, MD's NPI number?

Leah Ilyse Kaplan, MD's National Provider Identifier (NPI) is 1285291237, issued on May 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Leah Ilyse Kaplan, MD located?

The NPPES record lists a practice address at 1 Gustave L Levy PL, New York, NY, 10029. Phone: (212) 241-3422. Providers update this record themselves, so call before visiting.

How can I verify Leah Ilyse Kaplan, MD's license?

NPPES lists New York license number 317100, 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 Leah Ilyse Kaplan, MD prescribe under Medicare Part D?

In 2024, Leah Ilyse Kaplan, MD had 144 Medicare Part D claims for 51 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.