Marnee Spierer, M.D.
Radiation Oncology Physician · New York, NY
Marnee Spierer, M.D. is a radiation oncology physician with a practice address in New York, New York, and NPI 1033290465, issued on Oct 19, 2006. Check the license (New York 221991, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Marnee Spierer
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 221991 NY
Self-reported in NPPES; status is on the state search - Practice location
- 21 West Broadway, New York, NY 10007
- Phone
- (212) 300-0663
- Enumerated
- Oct 19, 2006
- Record last updated
- Dec 27, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (917) 210-3285
- Medicare enrollment
- Enrolled (PECOS I20170308000851); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Verify Marnee Spierer 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 221991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average radiation oncology physician in 2024
99 Medicare Part D claims for 57 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin22 claims
- Memantine Hcl16 claims
- Dexamethasone14 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.
Industry payments in 2024: $107.94
4 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- City OF Hope Medical Group OF Arizona LLCGoodyear, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marnee Spierer among 449 radiation oncology physician records in New York
Marnee Spierer, M.D. is one of 449 radiation 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 14% of them.
- NPI issued2006 · 14% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2000 · median 2005 among the 331 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New York
There are 449 radiation oncology physician records in New York.
All 449 in New York → Every provider in New York → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Alan Katz, MDNew York, NY 100071366486029
- Manjeet Chadha, MDNew York, NY 100031609850346
- Louis Harrison, M.D.New York, NY 100031932184231
- Sarah Rauth, M.D., F.R.C.P.C.New York, NY 100031043537772
- Kunal Sindhu, M.D.New York, NY 100031255862017
- Robert StewartNew York, NY 100031841607520
- Lawrence Tena, M.D.New York, NY 100031386645695
- Amy Young, MDNew York, NY 100031710181276
Common questions
What is Marnee Spierer, M.D.'s NPI number?
Marnee Spierer, M.D.'s National Provider Identifier (NPI) is 1033290465, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marnee Spierer, M.D. located?
The NPPES record lists a practice address at 21 West Broadway, New York, NY, 10007. Phone: (212) 300-0663. Providers update this record themselves, so call before visiting.
How can I verify Marnee Spierer, M.D.'s license?
NPPES lists New York license number 221991, 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 Marnee Spierer, M.D. prescribe under Medicare Part D?
In 2024, Marnee Spierer, M.D. had 99 Medicare Part D claims for 57 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.