Doctor profile · Federal record
Dr. John Gundzik, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Bakersfield, CA
- NPI 1659390995
- Accepts Medicare
- MIPS 86.3 / 100 · 2023
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2301 Bahamas Dr
Bakersfield, CA 933090663
(661) 326-9600
fax (661) 334-3065
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- August 16, 2011
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- California #A51755
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659390995. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
34,132
Distinct HCPCS
10
Medicare allowed
$614,980
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
A9575 |
Injection, gadoterate meglumine, 0.1 ml | 26,402 | 170 | $0 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 4,838 | 71 | $0 | |
77080 |
Dxa bone density measurement of hip, pelvis, spine | 395 | 395 | $41 | |
70551 |
Mri scan of brain without contrast | 305 | 302 | $212 | |
71045 |
X-ray of chest, 1 view | 250 | 232 | $9 | |
72141 |
Mri scan of upper spinal canal without contrast | 193 | 191 | $185 | |
72148 |
Mri scan of lower spinal canal without contrast | 182 | 179 | $204 | |
70450 |
Ct scan head or brain without contrast | 173 | 162 | $112 | |
70553 |
Mri scan of brain before and after contrast | 115 | 111 | $350 | |
70450 |
Ct scan head or brain without contrast | 112 | 112 | $41 |
In context: peer comparison
Among 13 peers in Bakersfield Diagnostic Radiology Physician, average services per provider: 196. This provider delivers 174× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. John Gundzik's medical specialty?
Dr. John Gundzik practices Diagnostic Radiology Physician in Bakersfield, CA.
Where does Dr. John Gundzik practice?
Dr. John Gundzik practices at 2301 Bahamas Dr, Bakersfield, CA 933090663. Office phone: 6613269600.
What is Dr. John Gundzik's NPI?
Dr. John Gundzik's National Provider Identifier (NPI) is 1659390995, issued by NPPES.
Does Dr. John Gundzik accept Medicare assignment?
Yes. Dr. John Gundzik accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gundzik commonly perform?
Top Medicare-reported procedures in 2023: Injection, gadoterate meglumine, 0.1 ml (HCPCS A9575); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Dxa bone density measurement of hip, pelvis, spine (HCPCS 77080). Source: CMS Medicare Physician & Other Practitioners file.