Quick answers
- Which hospitals does Stephen Gardner work at?
- Medicare's official clinician data lists Stephen Gardner at 1 hospital: Providence Mission Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen Gardner see patients?
- Medicare's clinician data lists 2 practice locations, including Mission Viejo, CA. Call before your visit to confirm the address.
- What is Stephen Gardner's specialty?
- Medicare lists Sports Medicine as the primary specialty, and also Orthopedic Surgery.
- Does Stephen Gardner accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen Gardner 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 Stephen Gardner?
- (949) 348-4000, as listed in official Medicare / NPI Registry data.
- What is Stephen Gardner's NPI number?
- 1871753392. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen Gardner works
Medicare's Facility Affiliation Data lists Stephen Gardner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · CCN 050567
Practice locations
Addresses where Stephen Gardner is enrolled with Medicare (CMS data updated 2026-10-02).
- 26401 Crown Valley Pkwy, Suite 101Mission Viejo, CA 92691 (949) 348‑4000
- 26471 Crown Valley Pkwy, Suite 101Mission Viejo, CA 92691 (949) 348‑4000
Group practices
Medicare enrollment lists Stephen Gardner as a member of this group (CMS data updated 2026-10-02).
- Community Orthopedic Medical Group17 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871753392 |
| 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