Mark Christopher Johnson, PA-C
NPI 1578658746ActiveIndividual· Physician Assistant· La Jolla, CA
Physician Assistant (PA-C) with Regents of the University of California, practicing in La Jolla, California. Mostly services rather than prescriptions: Medicare paid $18,922 for 127 patients in 2024, with only 30 Part D claims. Medical Device Business Services, Inc. was the largest of 2 companies reporting payments in 2024, $152.60 in all, mostly education.
Overview
| NPI | 1578658746 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 4, 2006 |
| Last updated in NPPES | Feb 4, 2025 |
| Certified by provider | Feb 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA21728 | CA |
| Personal Emergency Response Attendant | 146D00000X | 000901 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 127 |
|---|---|
| Services billed | 173 across 21 procedure codes |
| Paid by Medicare | $18,922 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 30 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $206.46 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Industry payments (Open Payments)
- 2024$152.60 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Medical Device Business Services, Inc. | $137.01 | 1 |
| Teva Pharmaceuticals USA, Inc. | $15.59 | 1 |
What the 2024 payments were for
- Education$137.01 · 1 payment
- Food and Beverage$15.59 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 149 physician assistants in La Jolla · All physician assistants in California