Mark W. Pasmantier, MD
Hematology & Oncology Physician · New York, NY
Mark W. Pasmantier, MD is a hematology & oncology physician with a practice address in New York, New York, and NPI 1558430199, issued on Nov 7, 2006. Check the license (New York 98988, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark W. Pasmantier
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 98988 NY
Self-reported in NPPES; status is on the state search - Practice location
- 407 E 70TH St, New York, NY 10021
- Phone
- (212) 517-5900
- Enumerated
- Nov 7, 2006
- Record last updated
- Jun 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (212) 734-9238
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 407 E 70TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark W. Pasmantier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 98988Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
24 Medicare Part D claims, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
Mark W. Pasmantier among 1,163 hematology & oncology physician records in New York
Mark W. Pasmantier, MD 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. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2008 · 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.
All 1,163 in New York → Every provider in New York → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Juliet Barker, MBBSNew York, NY 100211497726426
- Kathleen Cathcart, MDNew York, NY 100211508806050
- Chau Dang, MDNew York, NY 100211861422982
- Orli Etingin, MDNew York, NY 100211154418234
- Katharine Hsu, MDNew York, NY 100211720059769
- Jeffrey Laurence, MDNew York, NY 100211720175805
- Sebastian Alexander Mayer, MDNew York, NY 100211982627873
- Maria Palomba, MDNew York, NY 100211487625380
Common questions
What is Mark W. Pasmantier, MD's NPI number?
Mark W. Pasmantier, MD's National Provider Identifier (NPI) is 1558430199, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark W. Pasmantier, MD located?
The NPPES record lists a practice address at 407 E 70TH St, New York, NY, 10021. Phone: (212) 517-5900. Providers update this record themselves, so call before visiting.
How can I verify Mark W. Pasmantier, MD's license?
NPPES lists New York license number 98988, 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 Mark W. Pasmantier, MD prescribe under Medicare Part D?
In 2024, Mark W. Pasmantier, MD had 24 Medicare Part D claims; the average among hematology & oncology physician prescribers was 877. 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.