John F. Kessler, MD
Hematology & Oncology Physician · Cambridge, OH
John F. Kessler, MD is a hematology & oncology physician with a practice address in Cambridge, Ohio, and NPI 1598760274, issued on Jun 17, 2005. Check the license (Ohio 35.059610, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John F. Kessler
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 35.059610 OH
0101045128 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1455 Clark St, Cambridge, OH 43725
- Phone
- (740) 439-2771
- Enumerated
- Jun 17, 2005
- Record last updated
- Apr 7, 2026
- Medicaid ID
- 006036384 VA
- Medicare enrollment
- Enrolled (PECOS I20091113000299); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 513 in Ohio → Look up another NPI →
Also registered at 1455 Clark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elaine Beed, M.DMedical Oncology Physician1326143777
- Amber WestFamily Nurse Practitioner1346634623
Verify John F. Kessler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.059610Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
188 Medicare Part D claims for 86 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Letrozole27 claims
- Xarelto17 claims
- Anastrozole11 claims
- Brukinsa11 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 MIPS final score for 2023 (Medicare payment program): 79.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Ohiohealth CorporationCambridge, OH
- Virginia Oncology AssociatesNewport News, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John F. Kessler among 513 hematology & oncology physician records in Ohio
John F. Kessler, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1977 · median 2001 among the 369 with a school on file
- Record last updated2026 · 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 Cambridge → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Nabiel Alkhouri, M.D.Cambridge, OH 437251497728489
- Shyamal Bastola, MDZanesville, OH 437011306003033
- Dinesh Patel, MDZanesville, OH 437011861506677
- Nimisha Srivastava, MDZanesville, OH 437011053892299
- David Brown, MDToledo, OH 436231710985361
- Glen Burton, MDToledo, OH 436231689672081
- Rex Mowat, MDToledo, OH 436231346247251
- Bahu Shaikh, M.D.Toledo, OH 436231225036668
Common questions
What is John F. Kessler, MD's NPI number?
John F. Kessler, MD's National Provider Identifier (NPI) is 1598760274, issued on Jun 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John F. Kessler, MD located?
The NPPES record lists a practice address at 1455 Clark St, Cambridge, OH, 43725. Phone: (740) 439-2771. Providers update this record themselves, so call before visiting.
How can I verify John F. Kessler, MD's license?
NPPES lists Ohio license number 35.059610, 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 John F. Kessler, MD prescribe under Medicare Part D?
In 2024, John F. Kessler, MD had 188 Medicare Part D claims for 86 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is John F. Kessler, MD's MIPS final score?
The 2023 MIPS final score is 79.2 of 100. 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.