Basem William, MD
Hematology & Oncology Physician · Marion, OH
Basem William, MD is a hematology & oncology physician with a practice address in Marion, Ohio, and NPI 1952416505, issued on Aug 21, 2006. Check the license (Ohio 35-099331, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Basem William
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 35-099331 OH
016881 ME
Self-reported in NPPES; status is on the state search - Practice location
- 1050 Delaware Ave, Marion, OH 43302
- Phone
- (740) 383-7830
- Enumerated
- Aug 21, 2006
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 0065765 OH
- Medicare enrollment
- Enrolled (PECOS I20120618000091); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 513 in Ohio → Look up another NPI →
Also registered at 1050 Delaware Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Albany, CRNACertified Registered Nurse Anesthetist1710424866
- Ryan Anderson, PTPhysical Therapist1740486554
- Bradley Arnold, CRNACertified Registered Nurse Anesthetist1629227509
- Matthew Baker, CRNACertified Registered Nurse Anesthetist1275381303
- Shawn Barkalow, CRNACertified Registered Nurse Anesthetist1164137733
- James Beebout, CRNACertified Registered Nurse Anesthetist1649201047
Verify Basem William in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-099331Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
515 Medicare Part D claims for 76 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 12 claims were for opioids.
Most prescribed
- Acyclovir42 claims
- Brukinsa30 claims
- Levothyroxine Sodium27 claims
- Prednisone20 claims
- Entecavir17 claims
- Bexarotene15 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): 81.3 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).
Industry payments in 2024: $7,107.52
13 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Ohiohealth CorporationColumbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Basem William among 513 hematology & oncology physician records in Ohio
Basem William, MD is one of 513 hematology & oncology physician records with a practice address in Ohio. 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 16% of them.
- NPI issued2006 · 16% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1996 · median 2001 among the 369 with a school on file
- Record last updated2021 · 53% 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 Ohio 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 Ohio
There are 513 hematology & oncology physician records in Ohio.
All 513 in Ohio → Every provider in Marion → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Yanis Boumber, MDMarion, OH 433021780870428
- Arshad Chaudhry, M.D.Marion, OH 433021811965668
- Noman Khan, M.D.Marion, OH 433021275986580
- Arvind Shah, M.D.Columbus, OH 432601174526347
- Tejas Lodhawala, M.D.Upper Sandusky, OH 433511134145261
- Ferdous Barlaskar, M.D., PH.D.Columbus, OH 432281184981490
- Sanjay Yadav, M.D.Columbus, OH 432281528177714
- Anne Noonan, MDColumbus, OH 432211477887479
Common questions
What is Basem William, MD's NPI number?
Basem William, MD's National Provider Identifier (NPI) is 1952416505, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Basem William, MD located?
The NPPES record lists a practice address at 1050 Delaware Ave, Marion, OH, 43302. Phone: (740) 383-7830. Providers update this record themselves, so call before visiting.
How can I verify Basem William, MD's license?
NPPES lists Ohio license number 35-099331, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Basem William, MD prescribe under Medicare Part D?
In 2024, Basem William, MD had 515 Medicare Part D claims for 76 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Basem William, MD's MIPS final score?
The 2023 MIPS final score is 81.3 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.