NPPES file of Aug 9, 2026

Benjamin Ascherman

Hematology & Oncology Physician · New York, NY

Benjamin Ascherman is a hematology & oncology physician with a practice address in New York, New York, and NPI 1841828829, issued on Mar 27, 2020. Check the license (New York 323421, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841828829
Name
Benjamin Ascherman
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
323421 NY
Self-reported in NPPES; status is on the state search
Practice location
12 E 86TH St, New York, NY 10028
Phone
(212) 434-2000
Enumerated
Mar 27, 2020
Record last updated
Jul 20, 2026
Medicare enrollment
Enrolled (PECOS I20260305002907); may accept Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 2020
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 12 E 86TH St

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

  1. Mark Chapman, M.D.Gastroenterology Physician1649294661
  2. Fernando Clemente, M.D.Specialist1588923957
  3. Eugene Fine, MDUrology Physician1699841718
  4. Junjing Guo, MD,PHDHematology & Oncology Physician1700348984
  5. Cheryl Kramer, LPPsychoanalyst1902245392
  6. Irwin Leventhal, MDUrology Physician1386710192

Verify Benjamin Ascherman 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 323421
    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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Benjamin Ascherman among 1,163 hematology & oncology physician records in New York

Benjamin Ascherman is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 95% of them.

  • NPI issued2020 · 95% of these records are older, 3% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2020 · median 2002 among the 833 with a school on file
  • Record last updated2026 · 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 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in New York

There are 1,163 hematology & oncology physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Joseph Ament, M.D.New York, NY 100281740212166
  2. Elliot Belenkov, M.D.New York, NY 100281093785396
  3. Seymour Cohen, M.D.New York, NY 100281477552404
  4. Anna Gattani, MDNew York, NY 100281255333811
  5. Robert Glassman, MDNew York, NY 100281558447946
  6. Michael Goldsmith, M.D.New York, NY 100281528067550
  7. Steven Gruenstein, M.D.New York, NY 100281407855307
  8. Amory Novoselac, M.D.New York, NY 100281699852962

Common questions

What is Benjamin Ascherman's NPI number?

Benjamin Ascherman's National Provider Identifier (NPI) is 1841828829, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin Ascherman located?

The NPPES record lists a practice address at 12 E 86TH St, New York, NY, 10028. Phone: (212) 434-2000. Providers update this record themselves, so call before visiting.

How can I verify Benjamin Ascherman's license?

NPPES lists New York license number 323421, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.