Dr. William Fitzgerald Demas, MD

Dr. Demas practices at Parkview Bryan Hospital in Bryan, Ohio, part of Parkview Health System.

Dr. Demas' NPI, 1033100334, was assigned on November 4, 2005. Dr. Demas graduated from SUNY Downstate Health Sciences University in 1981. Dr. Demas holds Ohio license 35-054294.

Dr. Demas' primary practice is Parkview Bryan Hospital, at 433 West High Street, Bryan, OH 43506 in Williams County. The practice phone is (419) 636-1131.

Dr. Demas' primary practice is Parkview Bryan Hospital in Bryan, Ohio, part of Parkview Health System. Dr. Demas is also affiliated with Summa Health System - Akron Campus. The medical group on file is Parkview Physicians Group, Midwest Community Health Associates. Dmand AI also links Dr. Demas to 2 more hospitals and 6 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Demas practices, 4 sites in all. Vendor and product names are available with a free account.

Radiation oncology is Dr. Demas' primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Demas is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Demas' licenses on file in 4 states: Ohio, New York, California and Texas.

Dmand AI lists brain cancer radiation, breast cancer radiation, cancer radiation-upper GI, head & neck cancer radiation and prostate cancer radiation among the conditions Dr. Demas treats.

CMS data shows 141 Medicare services from Dr. Demas across 3 procedure codes in 2024, for 58 Medicare patients. Medicare paid $7,737 for them. Every service was in an office.

CMS counts 58 Medicare patients who saw Dr. Demas in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.43, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Demas' median patient age at 75, with 32% women.

In 2024, Dr. Demas wrote 65 Medicare Part D claims for 36 patients. 88% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $79 in total drug cost. In 2022, CMS named 15 claims across 1 drug.

Dr. Demas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 15 papers to Dr. Demas, published from 2009 to 2018. 2013 was the busiest year, with 2. The most frequent topics are Bone Neoplasms, Dose Fractionation, Radiation and Pain Measurement. Dr. Demas has published most often in Int J Radiat Oncol Biol Phys. Dr. Demas' most frequent co-authors are Minesh P. Mehta, MD, Lawrence Bruce Berk, MD and Lisa Ann Kachnic, MD.

Dmand AI links Dr. Demas to 26 clinical trials, 15 of them phase 3 studies. 9 are still active or recruiting. Conditions studied include Prostatic Neoplasms, Prostatic Diseases and Carcinoma, Intraductal, Noninfiltrating. Radiation Therapy Oncology Group sponsors the most, 14.

CMS Open Payments shows 19 general payments to Dr. Demas from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $135.

Dr. Demas graduated from SUNY Downstate Health Sciences University in 1981. Dr. Demas is a member of ASCO.

Dr. Demas is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.