Quick answers
- Where does John Sharkey see patients?
- Medicare's clinician data lists 3 practice locations, including Vista, CA, Encinitas, CA and Torrance, CA. Call before your visit to confirm the address.
- What is John Sharkey's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does John Sharkey accept Medicare assignment?
- Yes. Medicare's clinician data says John Sharkey 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 Sharkey?
- (760) 295-2299, as listed in official Medicare / NPI Registry data.
- What is John Sharkey's NPI number?
- 1912556002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John Sharkey is enrolled with Medicare (CMS data updated 2026-10-02).
- 1934 Via Ctr, Suite BVista, CA 92081 (760) 295‑2299
- 285 N El Camino Real, Suite 117Encinitas, CA 92024 (760) 633‑1000
- 4201 Torrance Blvd, Suite 640Torrance, CA 90503 (310) 543‑4444
Group practices
Medicare enrollment lists John Sharkey as a member of this group (CMS data updated 2026-10-02).
- Csi Medical Group111 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Vista
Clinicians with the same Medicare primary specialty in Vista, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912556002 |
| 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
- 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