Doctor profile · Federal record
Dr. William Demas, M.D., F.A.C.R.
Radiation Oncology Physician (CMS: Radiation Oncology) · Akron, OH
- NPI 1033100334
- Accepts Medicare
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
525 E Market St
Akron, OH 443041619
(330) 375-3557
fax (337) 376-1302 - Additional location
-
524 W High St
Bryan, OH 435061618
(419) 636-9800
fax (419) 636-0451 - Mailing address
-
75 Arch St Ste 410
Akron, OH 443041433
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- December 2, 2025
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State license (1)
- Ohio #35-054294
- Medicaid
- OH #0636879
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033100334. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
260
Distinct HCPCS
6
Medicare allowed
$18,010
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77014 |
Ct guidance for insertion of radiation therapy fields | 140 | 22 | $44 | |
77427 |
Radiation treatment management, 5 treatment sessions | 37 | 19 | $187 | |
77334 |
Design and construction of complex radiation treatment device | 29 | 15 | $59 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 29 | 20 | $64 | |
77280 |
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area | 14 | 14 | $37 | |
77290 |
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 11 | 11 | $81 |
In context: peer comparison
Among 5 peers in Akron Radiation Oncology Physician, average services per provider: 76. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$54
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bayer Healthcare Pharmaceuticals INC. | 3 | $54.00 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Demas's medical specialty?
Dr. William Demas practices Radiation Oncology Physician in Akron, OH.
Where does Dr. William Demas practice?
Dr. William Demas practices at 525 E Market St, Akron, OH 443041619. Office phone: 3303753557.
What is Dr. William Demas's NPI?
Dr. William Demas's National Provider Identifier (NPI) is 1033100334, issued by NPPES.
Does Dr. William Demas accept Medicare assignment?
Yes. Dr. William Demas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Demas commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.