Quick answers
- Does Kelly L. Mountain accept Medicare assignment?
- Yes. Medicare's clinician data says Kelly L. Mountain accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Kelly L. Mountain's NPI number?
- 1205420312. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kelly L. Mountain works
Medicare's Facility Affiliation Data lists Kelly L. Mountain at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
Practice locations
Addresses where Kelly L. Mountain is enrolled with Medicare (CMS data updated October 2, 2026).
- 1441 Avocado Ave, Suite 503Newport Beach, CA 92660 (949) 718‑9020
- 4950 Barranca Pkwy, Suite 103Irvine, CA 92604 (949) 552‑2700
- 500 Superior Ave, Suite 160Newport Beach, CA 92663 (949) 791‑3006
Group practices
Medicare enrollment lists Kelly L. Mountain as a member of these groups (CMS data updated October 2, 2026).
- HMTS Inc118 clinicians in the group
- Coastal Family Medicine Inc34 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Other clinicians in HMTS Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205420312 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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