Quick answers
- Which hospitals does John J. Ziomek work at?
- Medicare's official clinician data lists John J. Ziomek at 3 hospitals: Chapman Global Medical Center, Coalinga Regional Medical Center and Coastal Communities Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Ziomek see patients?
- Medicare's clinician data lists 2 practice locations, including Madera, CA and Colusa, CA. Call before your visit to confirm the address.
- What is John J. Ziomek's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John J. Ziomek accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Ziomek 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 J. Ziomek?
- (877) 346-2211, as listed in official Medicare / NPI Registry data.
- What is John J. Ziomek's NPI number?
- 1528095551. 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 J. Ziomek works
Medicare's Facility Affiliation Data lists John J. Ziomek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chapman Global Medical CenterOrange, CA · Acute Care Hospital · CCN 050745
- Coalinga Regional Medical CenterCoalinga, CA · Critical Access Hospital · CCN 051338
- Coastal Communities HospitalSanta Ana, CA · Acute Care Hospital · CCN 050747
Practice locations
Addresses where John J. Ziomek is enrolled with Medicare (CMS data updated 2026-10-02).
- 1250 E Almond AveMadera, CA 93637 (877) 346‑2211
- 173 E Webster StColusa, CA 95932 (209) 287‑6308
Group practices
Medicare enrollment lists John J. Ziomek as a member of this group (CMS data updated 2026-10-02).
- American Specialty Physicians Group Inc100 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Madera
Clinicians with the same Medicare primary specialty in Madera, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528095551 |
| 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