Quick answers
- Which hospitals does Denise L. Ammon work at?
- Medicare's official clinician data lists Denise L. Ammon at 2 hospitals: John Muir Medical Center - Concord Campus and St Joseph's Medical Center of Stockton. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Denise L. Ammon see patients?
- Medicare's clinician data lists 2 practice locations, including Stockton, CA and Concord, CA. Call before your visit to confirm the address.
- What is Denise L. Ammon's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Denise L. Ammon accept Medicare assignment?
- Yes. Medicare's clinician data says Denise L. Ammon 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 Denise L. Ammon?
- (209) 467-6556, as listed in official Medicare / NPI Registry data.
- What is Denise L. Ammon's NPI number?
- 1518222876. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Denise L. Ammon works
Medicare's Facility Affiliation Data lists Denise L. Ammon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- St Joseph's Medical Center of StocktonStockton, CA · Acute Care Hospital · CCN 050084
Practice locations
Addresses where Denise L. Ammon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1800 N California StStockton, CA 95204 (209) 467‑6556
- 2540 E StConcord, CA 94520 (929) 682‑8200
Group practices
Medicare enrollment lists Denise L. Ammon as a member of these groups (CMS data updated 2026-10-02).
- Cep America - California1,292 clinicians in the group
- Team Physicians of California Medical Group Inc98 clinicians in the group
- San Francisco Physicians International Medical Group Inc41 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Stockton
Clinicians with the same Medicare primary specialty in Stockton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518222876 |
| 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