Elizabeth Guevara, MD
Hematology & Oncology Physician · Brooklyn, NY
Elizabeth Guevara, MD is a hematology & oncology physician with a practice address in Brooklyn, New York, and NPI 1902858756, issued on May 17, 2006. Check the license (New York 167703, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Guevara
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 167703 NY
Self-reported in NPPES; status is on the state search - Practice location
- 240 Willoughby St, Brooklyn, NY 11201
- Phone
- (718) 250-6960
- Enumerated
- May 17, 2006
- Record last updated
- Sep 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (718) 250-6493
- Medicaid ID
- 01844944 NY
- Medicare enrollment
- Enrolled (PECOS I20040518001453); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 240 Willoughby St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Leonard Berkowitz, MDInfectious Disease Physician1265534564
- Dipali Changela, M.D.Internal Medicine Physician1811393143
Verify Elizabeth Guevara 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 167703Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
143 Medicare Part D claims for 28 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Eliquis18 claims
- Calquence12 claims
- Ninlaro12 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
- Icahn School OF Medicine AT Mount SinaiElmhurst, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Guevara among 1,163 hematology & oncology physician records in New York
Elizabeth Guevara, 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 fileYes · 72% of these records are
- Graduated1979 · median 2002 among the 833 with a school on file
- Record last updated2011 · 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 Brooklyn → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Phyllis Hyde, MDBrooklyn, NY 112011669579652
- Maxim Shulimovich, D.O.Brooklyn, NY 112011326297318
- Katy TiconaBrooklyn, NY 112011669867966
- Asmat Ullah, M.D.Brooklyn, NY 112011104846765
- Olcay Batuman, M.D.Brooklyn, NY 112031316931579
- Jordonna BrownBrooklyn, NY 112031467985564
- Edwin ChiuBrooklyn, NY 112031104261569
- Jason Gonsky, M.D., PH.D.Brooklyn, NY 112031184835035
Common questions
What is Elizabeth Guevara, MD's NPI number?
Elizabeth Guevara, MD's National Provider Identifier (NPI) is 1902858756, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Guevara, MD located?
The NPPES record lists a practice address at 240 Willoughby St, Brooklyn, NY, 11201. Phone: (718) 250-6960. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Guevara, MD's license?
NPPES lists New York license number 167703, 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 Elizabeth Guevara, MD prescribe under Medicare Part D?
In 2024, Elizabeth Guevara, MD had 143 Medicare Part D claims for 28 beneficiaries; 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.