Marisa Siebel, M.D.
Medical Oncology Physician · New Hyde Park, NY
Marisa Siebel, M.D. is a medical oncology physician with a practice address in New Hyde Park, New York, and NPI 1942303094, issued on Sep 6, 2006. Check the license (New York 240929, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Marisa Siebel
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 240929 NY
Self-reported in NPPES; status is on the state search - Practice location
- 450 Lakeville RD, New Hyde Park, NY 11042
- Phone
- (516) 734-7671
- Enumerated
- Sep 6, 2006
- Record last updated
- Sep 14, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070430000019); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 548 in New York → Look up another NPI →
Also registered at 450 Lakeville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dinie Ackerman, PA-C, MSPhysician Assistant1972319275
- Mateb AlghamwaStudent in an Organized Health Care Education/Training Program1821883125
- Susan Bader, PAPhysician Assistant1639299514
- Maureen Balram, NPAdult Health Nurse Practitioner1679023592
- Deborah Banjo, FNP-BC, MSN, RNFamily Nurse Practitioner1871306753
- Mali Barbi, MDInternal Medicine Physician1447811526
Verify Marisa Siebel 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 240929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average medical oncology physician in 2024
30 Medicare Part D claims for 14 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore Health System Medical Faculty Group Practice IncNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marisa Siebel among 548 medical oncology physician records in New York
Marisa Siebel, M.D. is one of 548 medical oncology physician records with a practice address in New York. 80% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2000 · median 2005 among the 389 with a school on file
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in New York
There are 548 medical oncology physician records in New York.
All 548 in New York → Every provider in New Hyde Park → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Jagmohan Kalra, M.D.New Hyde Park, NY 110421043346950
- Anna Kurzyna-Solinas, MDLake Success, NY 110421922009653
- Joanna Rhodes, MD, MSCENew Hyde Park, NY 110421508108135
- Margaret Locke, MDManhasset, NY 110301265959464
- Sushil Bhardwaj, M.D.Suffern, NY 109011427015098
- Robert Israel, M.D.Suffern, NY 109011760648356
- Neal Meropol, MDBrooklyn, NY 112011629095153
- Gurinder Sidhu, MDBrooklyn, NY 112031306031315
Common questions
What is Marisa Siebel, M.D.'s NPI number?
Marisa Siebel, M.D.'s National Provider Identifier (NPI) is 1942303094, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marisa Siebel, M.D. located?
The NPPES record lists a practice address at 450 Lakeville RD, New Hyde Park, NY, 11042. Phone: (516) 734-7671. Providers update this record themselves, so call before visiting.
How can I verify Marisa Siebel, M.D.'s license?
NPPES lists New York license number 240929, 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 Marisa Siebel, M.D. prescribe under Medicare Part D?
In 2024, Marisa Siebel, M.D. had 30 Medicare Part D claims for 14 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Marisa Siebel, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.