John Alan Sharkey, MMS, PA-C
Physician Assistant · Encinitas, CA
At a glance
285 N El Camino Real Ste 117, Encinitas, CA 92024-5384
NPPES record updated Jan 3, 2024. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
285 N El Camino Real Ste 117Encinitas, CA 92024-5384
Additional reported practice locations
360 San Miguel Dr Ste 309Newport Beach, CA 926607829
Phone: 9496400434
Fax: 9496400277 2732 N Alvernon Way
Tucson, AZ 857121804
Phone: 5203294224 1934 Via Ctr Ste B
Vista, CA 920816056
Phone: 7602952299
Fax: 7602165300 1441 Avocado Ave Ste 409
Newport Beach, CA 926607705
Phone: 9496404501
Fax: 9496400741
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2019
- CMS specialties
- Physician Assistant
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $1,041.47 |
| Education | $58.77 |
Reporting companies
| Company | Amount |
|---|---|
| JANSSEN BIOTECH, INC. | $269.70 |
| PFIZER INC. | $227.37 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $213.22 |
| ABBVIE INC. | $163.01 |
| GENZYME CORPORATION | $66.55 |
| UCB, INC. | $36.44 |
| GALDERMA LABORATORIES, L.P. | $35.81 |
| LILLY USA, LLC | $31.67 |
| Other reporting companies | $56.47 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Physician Assistant
- Taxonomy code
- 363A00000X
- Enumeration date
- Sep 10, 2019
- Record updated
- Jan 3, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MMS, PA-C
Reported taxonomies and licenses
363AM0700X
License reported: 7664 AZ
363A00000X · Primary
License reported: 59763 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
285 N El Camino Real Ste 117Encinitas, CA 92024-5384
- Phone
- (760) 633-1000
- Fax
- (760) 753-8657
Mailing address
4300 EL CAMINO REALSTE 100
LOS ALTOS, CA 940221090
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue