Quick answers
- Which hospitals does Todd Chapman work at?
- Medicare's official clinician data lists Todd Chapman at 5 hospitals: Adventist Health Sonora, Coalinga Regional Medical Center, Colusa Medical Center, John C Fremont Healthcare District and Mark Twain Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Todd Chapman see patients?
- Medicare's clinician data lists 9 practice locations, including Stockton, CA, Gilbert, AZ and Colusa, CA. Call before your visit to confirm the address.
- What is Todd Chapman's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Todd Chapman accept Medicare assignment?
- Yes. Medicare's clinician data says Todd Chapman 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 Todd Chapman?
- (209) 943-2000, as listed in official Medicare / NPI Registry data.
- What is Todd Chapman's NPI number?
- 1386964500. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Todd Chapman works
Medicare's Facility Affiliation Data lists Todd Chapman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · CCN 050335
- Coalinga Regional Medical CenterCoalinga, CA · Critical Access Hospital · CCN 051338
- Colusa Medical CenterColusa, CA · Acute Care Hospital · CCN 050783
- John C Fremont Healthcare DistrictMariposa, CA · Critical Access Hospital · CCN 051304
- Mark Twain Medical CenterSan Andreas, CA · Critical Access Hospital · CCN 051332
Practice locations
Addresses where Todd Chapman is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 1800 N California StStockton, CA 95204 (209) 943‑2000
- 1890 E Watford CtGilbert, AZ 85298 (773) 430‑1254
- 199 E Webster StColusa, CA 95932 (530) 458‑1808
- 2175 Rosaline Ave, Suite ARedding, CA 96001 (530) 225‑6000
- 3820 E Piccadilly RdPhoenix, AZ 85018 (209) 943‑2000
Group practices
Medicare enrollment lists Todd Chapman as a member of these groups (CMS data updated 2026-10-02).
- Advanced Radiology and Interventional Associates Inc104 clinicians in the group
- Radiologica Inc43 clinicians in the group
- Southern Inyo Healthcare District22 clinicians in the group
- Claremont Imaging Associates a Medical Corporation4 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Stockton
Clinicians with the same Medicare primary specialty in Stockton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386964500 |
| 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