John Sharkey, MMS, PA-C
NPI 1912556002 · Physician Assistant · Encinitas, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sharkey, MMS, PA-C is a Physician Assistant provider in Encinitas, CA (NPI 1912556002).
Provider details
- NPI number
- 1912556002
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MMS, PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 7664 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,015 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 517 | $88 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 468 | $7 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 221 | $48 |
| Destruction of Skin Growth, 1-14 Growths17110 | 182 | $113 |
| Biopsy of Related Skin Growth, First Growth11102 | 145 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 81 | 50 |
| Triamcinolone Acetonide | 72 | 48 |
| Ketoconazole | 58 | 35 |
| Imiquimod | 57 | 44 |
| Doxycycline Monohydrate | 41 | 24 |
| Terbinafine Hcl | 20 | 13 |
| Fluorouracil | 17 | 16 |
| Metronidazole | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,660 across 80 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 2732 N Alvernon WayTucson, AZ 85712-1804Phone: (520) 329-4224
- 360 San Miguel Dr Ste 309Newport Beach, CA 92660-7829Phone: (949) 640-0434Fax: (949) 640-0277
- 1441 Avocado Ave Ste 409Newport Beach, CA 92660-7705Phone: (949) 640-4501Fax: (949) 640-0741
- 1934 Via Ctr Ste BVista, CA 92081-6056Phone: (760) 295-2299Fax: (760) 216-5300
Registry dates
- Enumerated
- 2019-09-10
- Last updated
- 2024-01-03
- Certified
- 2024-01-03
Frequently asked questions
- What is John Sharkey's NPI number?
- John Sharkey's National Provider Identifier (NPI) is 1912556002, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sharkey's specialty?
- John Sharkey is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Sharkey located?
- John Sharkey's practice location on file with NPPES is 285 N El Camino Real Ste 117, Encinitas, CA 92024-5384.
- What is John Sharkey's phone number?
- The practice phone number listed in the NPPES registry for John Sharkey is (760) 633-1000.
- Does John Sharkey accept Medicare?
- John Sharkey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sharkey's NPI active?
- Yes — John Sharkey's NPI (1912556002) is active in the NPPES registry as of the last update on 2024-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.