Doctor profile · Federal record
Dr. Mark Chisam, M.D.
Radiation Oncology Physician (CMS: Radiation Oncology) · Williamsburg, VA
- NPI 1053381251
- Accepts Medicare
- MIPS 94.1 / 100 · 2023
- 32 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3901 Treyburn Dr, Suite B
Williamsburg, VA 231852891
(757) 220-4900
fax (757) 565-5328 - Mailing address
-
856 J Clyde Morris Blvd, Suite A
Newport News, VA 236011318
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- October 3, 2013
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State license (1)
- Virginia #0101054200
- Medicaid
- VA #1053381251
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053381251. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,319
Distinct HCPCS
10
Medicare allowed
$298,345
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77014 |
Ct guidance for insertion of radiation therapy fields | 1,441 | 79 | $45 | |
77427 |
Radiation treatment management, 5 treatment sessions | 515 | 147 | $189 | |
77334 |
Design and construction of complex radiation treatment device | 367 | 124 | $58 | |
77300 |
Calculation of radiation therapy dose | 356 | 114 | $32 | |
77263 |
Complex radiation therapy planning | 123 | 119 | $165 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 98 | 98 | $177 | |
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 | 84 | 73 | $79 | |
77280 |
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area | 75 | 52 | $36 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 54 | 50 | $222 | |
77295 |
3d radiation therapy planning | 51 | 48 | $216 |
In context: peer comparison
Among 1 peers in Williamsburg Radiation Oncology Physician, average services per provider: 207. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$37
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Progenics Pharmaceuticals, INC. | 2 | $37.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
19
Patients
0
Total drug cost
$299
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 19 | 0 | $299 |
Frequently asked questions
What is Dr. Mark Chisam's medical specialty?
Dr. Mark Chisam practices Radiation Oncology Physician in Williamsburg, VA.
Where does Dr. Mark Chisam practice?
Dr. Mark Chisam practices at 3901 Treyburn Dr, Williamsburg, VA 231852891. Office phone: 7572204900.
What is Dr. Mark Chisam's NPI?
Dr. Mark Chisam's National Provider Identifier (NPI) is 1053381251, issued by NPPES.
Does Dr. Mark Chisam accept Medicare assignment?
Yes. Dr. Mark Chisam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Chisam 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.