Ben Ponvilawan, M.D.
Hematology & Oncology Physician · Chicago, IL
Ben Ponvilawan, M.D. is a hematology & oncology physician with a practice address in Chicago, Illinois, and NPI 1700536117, issued on Mar 28, 2022. Check the license (Illinois 036174353, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ben Ponvilawan
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 036174353 IL
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-2000
- Enumerated
- Mar 28, 2022
- Record last updated
- Jun 17, 2025
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 251 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Abarbanel, MDPhysical Medicine & Rehabilitation Physician1124600291
- Mohamed Abazeed, MD, PHDRadiation Oncology Physician1205096609
- Allison AbbottCertified Registered Nurse Anesthetist1720446594
- Kathryn AbbottPsychiatry Physician1295537561
- Ramez Abdalla, M.B., B. CHNeuroradiology Physician1407410392
- Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301
Verify Ben Ponvilawan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036174353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
254 Medicare Part D claims for 51 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium19 claims
- Ozempic14 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.
Ben Ponvilawan among 666 hematology & oncology physician records in Illinois
Ben Ponvilawan, M.D. is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 96% of them.
- NPI issued2022 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2025 · 49% 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 Illinois 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 Illinois
There are 666 hematology & oncology physician records in Illinois.
All 666 in Illinois → Every provider in Chicago → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Elizabeth Eklund, MDChicago, IL 606111598861205
- Lisa Flaum, MDChicago, IL 606111740261262
- Leo Gordon, MDChicago, IL 606111821028499
- Jochen Lorch, M.D.Chicago, IL 606111518913094
- Daniela Matei, M.D.Chicago, IL 606111558327486
- Hidayatullah Munshi, MDChicago, IL 606111437258340
- Yu Oyama, MDChicago, IL 606111790715472
- Adam Petrich, MDChicago, IL 606111407899198
Common questions
What is Ben Ponvilawan, M.D.'s NPI number?
Ben Ponvilawan, M.D.'s National Provider Identifier (NPI) is 1700536117, issued on Mar 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ben Ponvilawan, M.D. located?
The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.
How can I verify Ben Ponvilawan, M.D.'s license?
NPPES lists Illinois license number 036174353, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ben Ponvilawan, M.D. prescribe under Medicare Part D?
In 2024, Ben Ponvilawan, M.D. had 254 Medicare Part D claims for 51 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.