Doctor profile · Federal record
Dr. John Colby, MD, PHD
Neuroradiology Physician (CMS: Diagnostic Radiology) · Greenbrae, CA
- NPI 1700205374
- Accepts Medicare
- MIPS 94.8 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
250 Bon Air RD
Greenbrae, CA 949041702
(415) 925-7301 - Mailing address
-
500 Redwood Blvd Ste 300
Novato, CA 949476921
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- July 1, 2020
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 2085N0700X — NUCC code
- State license (1)
- California #A139185
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1700205374. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
7,547
Distinct HCPCS
10
Medicare allowed
$340,703
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 1,097 | 909 | $10 | |
70450 |
Ct scan head or brain without contrast | 627 | 576 | $44 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 368 | 346 | $97 | |
70551 |
Mri scan of brain without contrast | 278 | 276 | $79 | |
70553 |
Mri scan of brain before and after contrast | 244 | 225 | $123 | |
72125 |
Ct scan of upper spine without contrast | 208 | 205 | $52 | |
71260 |
Ct scan of chest with contrast | 171 | 158 | $60 | |
71275 |
Ct scan of blood vessels of chest with contrast | 149 | 147 | $95 | |
71046 |
X-ray of chest, 2 views | 140 | 137 | $12 | |
73502 |
X-ray of hip, 2-3 views | 139 | 132 | $12 |
In context: peer comparison
Among 1 peers in Greenbrae Neuroradiology Physician, average services per provider: 75. This provider delivers 101× the peer median.Open Payments
Industry payments received
All-time total
$120
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Telix Pharmaceuticals | 1 | $120.00 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. John Colby's medical specialty?
Dr. John Colby practices Neuroradiology Physician in Greenbrae, CA.
Where does Dr. John Colby practice?
Dr. John Colby practices at 250 Bon Air RD, Greenbrae, CA 949041702. Office phone: 4159257301.
What is Dr. John Colby's NPI?
Dr. John Colby's National Provider Identifier (NPI) is 1700205374, issued by NPPES.
Does Dr. John Colby accept Medicare assignment?
Yes. Dr. John Colby accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Colby commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Ct scan of abdomen and pelvis with contrast (HCPCS 74177). Source: CMS Medicare Physician & Other Practitioners file.