Timothy Scott Johnston, M.D.
NPI 1528097847ActiveIndividual· Family Medicine· Merced, CA
Family Medicine (M.D.) in Merced, California, trained at Geisel School of Medicine at Dartmouth (class of 1985). In 2024 Medicare paid $648,079 for 2,149 patients, and Part D covered 8,152 of their prescriptions, 82% of them generic. Acadia Pharmaceuticals Inc was the largest of 3 companies reporting payments in 2025, $67.76 in all, mostly food and beverage.
Overview
| NPI | 1528097847 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 30, 2006 |
| Last updated in NPPES | Aug 4, 2023 |
| Certified by provider | Aug 4, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G58698 | CA |
| Emergency Medicine, Emergency Medical Services | 207PE0004X | G58698 | CA |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,149 |
|---|---|
| Services billed | 11,125 across 110 procedure codes |
| Paid by Medicare | $648,079 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,152 · 11,653 30-day fills |
|---|---|
| Patients | 550 |
| Total drug cost | $677,601 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Geisel School of Medicine at Dartmouth |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
| Secondary specialties | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- Timothy S Johnston MD PCMerced, CA · 8 clinicians
Hospital affiliation
- Mercy Medical CenterMerced, CA
Other facilities
- Careone Home Health and Hospice, IncHome health agency · Salida, CA
- Covenant Care at HomeHome health agency · Turlock, CA
- Compassionate Care Hospice Central California, LLCHospice · Fresno, CA
- Anberry Nursing and Rehabilitation CenterNursing home · Atwater, CA
- Anberry Post AcuteNursing home · Merced, CA
Industry payments (Open Payments)
- 2025$67.76 · 3 payments from 3 companies
- 2024$43.83 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Acadia Pharmaceuticals Inc | $29.12 | 1 |
| Hologic Sales and Service, LLC | $22.82 | 1 |
| Merck Sharp & Dohme LLC | $15.82 | 1 |
What the 2025 payments were for
- Food and Beverage$67.76 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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