William Fitzgerald Demas, M.D., F.A.C.R.
Radiation Oncology Physician · Akron, OH
William Fitzgerald Demas, M.D., F.A.C.R. is a radiation oncology physician with a practice address in Akron, Ohio, and NPI 1033100334, issued on Nov 4, 2005. Check the license (Ohio 35-054294, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Fitzgerald Demas
- Credential
- M.D., F.A.C.R.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 35-054294 OH
Self-reported in NPPES; status is on the state search - Practice location
- 525 E Market St, Akron, OH 44304
- Phone
- (330) 375-3557
- Enumerated
- Nov 4, 2005
- Record last updated
- Dec 2, 2025
- Fax
- (337) 376-1302
- Medicaid ID
- 0636879 OH
- Medicare enrollment
- Enrolled (PECOS I20040209000387); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1981
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 298 in Ohio → Look up another NPI →
Also registered at 525 E Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Abel, CPHTPharmacy Technician1144506312
- Abel AbrahamStudent in an Organized Health Care Education/Training Program1124821830
- Caroline Abramovich, MDAnatomic Pathology & Clinical Pathology Physician1114989654
- Michelle Adams, APRN, BS, RNFamily Nurse Practitioner1609341924
- Ramzi AkelStudent in an Organized Health Care Education/Training Program1174219984
- Atteh Akoto, MDStudent in an Organized Health Care Education/Training Program1750021416
Verify William Fitzgerald Demas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-054294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average radiation oncology physician in 2024
65 Medicare Part D claims for 36 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl12 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.
Industry payments in 2024: $54.00
3 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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 2 group practices
- Midwest Community Health Associates, Inc.Bryan, OH
- University Primary Care Practices IncConneaut, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Fitzgerald Demas among 298 radiation oncology physician records in Ohio
William Fitzgerald Demas, M.D., F.A.C.R. is one of 298 radiation 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, 83% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1981 · median 2008 among the 226 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Ohio
There are 298 radiation oncology physician records in Ohio.
All 298 in Ohio → Every provider in Akron → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Anand Desai, M.D.Akron, OH 443041104007665
- Susan Hong, MDAkron, OH 443041114918422
- Becky Lee, MDAkron, OH 443041457856833
- Ashok Ramalingam, MDAkron, OH 443071184605255
- Erin Murphy, M.D.Akron, OH 443081780853564
- Kevin Chaung, MDRavenna, OH 442661275064503
- Desiree Doncals, M.D.Medina, OH 442561689665994
- Ibrahim Abugheida, MDCleveland, OH 441951013438571
Common questions
What is William Fitzgerald Demas, M.D., F.A.C.R.'s NPI number?
William Fitzgerald Demas, M.D., F.A.C.R.'s National Provider Identifier (NPI) is 1033100334, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Fitzgerald Demas, M.D., F.A.C.R. located?
The NPPES record lists a practice address at 525 E Market St, Akron, OH, 44304. Phone: (330) 375-3557. Providers update this record themselves, so call before visiting.
How can I verify William Fitzgerald Demas, M.D., F.A.C.R.'s license?
NPPES lists Ohio license number 35-054294, 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 William Fitzgerald Demas, M.D., F.A.C.R. prescribe under Medicare Part D?
In 2024, William Fitzgerald Demas, M.D., F.A.C.R. had 65 Medicare Part D claims for 36 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.