Doctor profile · Federal record
Dr. James Kolker, MD
Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Philadelphia, PA
- NPI 1568433373
- Accepts Medicare
- MIPS 85.5 / 100 · 2023
- 45 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3400 Spruce St
Philadelphia, PA 19104
(215) 662-2428 - Mailing address
-
3400 Spruce Street
Philadelphia, PA 191042640
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- November 28, 2011
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State licenses (2)
- Pennsylvania #MD438043 · Texas #K0873
- Medicaid
- TX #046249101
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568433373. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,647
Distinct HCPCS
10
Medicare allowed
$145,703
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77300 |
Calculation of radiation therapy dose | 399 | 72 | $34 | |
77014 |
Ct guidance for insertion of radiation therapy fields | 218 | 57 | $47 | |
G6002 |
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 186 | 23 | $21 | |
77334 |
Design and construction of complex radiation treatment device | 131 | 60 | $63 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 118 | 92 | $68 | |
77427 |
Radiation treatment management, 5 treatment sessions | 82 | 36 | $201 | |
77263 |
Complex radiation therapy planning | 69 | 69 | $174 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 56 | 56 | $188 | |
77295 |
3d radiation therapy planning | 48 | 48 | $235 | |
77014 |
Ct guidance for insertion of radiation therapy fields | 47 | 18 | $47 |
In context: peer comparison
Among 45 peers in Philadelphia Radiation Oncology Physician, average services per provider: 88. This provider delivers 19× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
28
Patients
11
Total drug cost
$643
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 28 | 11 | $643 |
Hospital affiliations
Frequently asked questions
What is Dr. James Kolker's medical specialty?
Dr. James Kolker practices Radiation Oncology Physician in Philadelphia, PA.
Where does Dr. James Kolker practice?
Dr. James Kolker practices at 3400 Spruce St, Philadelphia, PA 19104. Office phone: 2156622428.
What is Dr. James Kolker's NPI?
Dr. James Kolker's National Provider Identifier (NPI) is 1568433373, issued by NPPES.
Does Dr. James Kolker accept Medicare assignment?
Yes. Dr. James Kolker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Kolker commonly perform?
Top Medicare-reported procedures in 2023: Calculation of radiation therapy dose (HCPCS 77300); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002). Source: CMS Medicare Physician & Other Practitioners file.