Quick answers
- Which hospitals does John Gundzik work at?
- Medicare's official clinician data lists John Gundzik at 2 hospitals: Bakersfield Memorial Hospital and Mercy Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Gundzik see patients?
- Medicare's clinician data lists 2 practice locations, including Bakersfield, CA. Call before your visit to confirm the address.
- What is John Gundzik's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John Gundzik accept Medicare assignment?
- Yes. Medicare's clinician data says John Gundzik accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John Gundzik?
- (661) 326-9600, as listed in official Medicare / NPI Registry data.
- What is John Gundzik's NPI number?
- 1659390995. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Gundzik works
Medicare's Facility Affiliation Data lists John Gundzik at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bakersfield Memorial HospitalBakersfield, CA · Acute Care Hospital · CCN 050036
- Mercy HospitalBakersfield, CA · Acute Care Hospital · CCN 050295
Practice locations
Addresses where John Gundzik is enrolled with Medicare (CMS data updated 2026-10-02).
- 2301 Bahamas DrBakersfield, CA 93309 (661) 326‑9600
- 3838 San Dimas St, Suite A120Bakersfield, CA 93301 (661) 328‑9600
Group practices
Medicare enrollment lists John Gundzik as a member of this group (CMS data updated 2026-10-02).
- Kern Radiology Medical Group Inc100 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Bakersfield
Clinicians with the same Medicare primary specialty in Bakersfield, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659390995 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians