Doctor profile · Federal record
Dr. Benjamin Willen, MD
Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Greeley, CO
- NPI 1437643905
- Accepts Medicare
- MIPS 93.3 / 100 · 2023
- 8 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1801 16Th St
Greeley, CO 806315154
(970) 810-3894
Credentials & registration
- NPI registered
- June 2018 — 8 yrs on file
- Profile last updated
- January 15, 2026
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State licenses (2)
- Colorado #DR.0073871 · Michigan #4351032337
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437643905. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
417
Distinct HCPCS
8
Medicare allowed
$39,941
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77014 |
Ct guidance for insertion of radiation therapy fields | 193 | 17 | $44 | |
77427 |
Radiation treatment management, 5 treatment sessions | 54 | 19 | $188 | |
77300 |
Calculation of radiation therapy dose | 50 | 18 | $32 | |
77334 |
Design and construction of complex radiation treatment device | 43 | 18 | $59 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 32 | 32 | $176 | |
77263 |
Complex radiation therapy planning | 18 | 18 | $166 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 14 | 13 | $222 | |
77301 |
High precision radiation therapy planning | 13 | 13 | $414 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 45. This provider delivers 9.3× the peer median.Open Payments
Industry payments received
All-time total
$425
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 2 | $380.27 | |
| Celgene Corporation | 1 | $44.68 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Benjamin Willen's medical specialty?
Dr. Benjamin Willen practices Radiation Oncology Physician in Greeley, CO.
Where does Dr. Benjamin Willen practice?
Dr. Benjamin Willen practices at 1801 16Th St, Greeley, CO 806315154. Office phone: 9708103894.
What is Dr. Benjamin Willen's NPI?
Dr. Benjamin Willen's National Provider Identifier (NPI) is 1437643905, issued by NPPES.
Does Dr. Benjamin Willen accept Medicare assignment?
Yes. Dr. Benjamin Willen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Benjamin Willen 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); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.