Nathaniel Parker, DO
NPI 1366904963ActiveIndividual· Family Medicine· Nipomo, CA
Family Medicine (DO) in Nipomo, California, trained at Touro Un College of Osteopathic Medicine, Vallejo (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $435,412 for 4,314 claims, against $800.71 paid for services in 2024. Steris Corporation was the largest of 3 companies reporting payments in 2025, $187.97 in all, mostly food and beverage.
Overview
| NPI | 1366904963 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 2, 2019 |
| Last updated in NPPES | Aug 26, 2022 |
| Certified by provider | Aug 26, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 19493 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 76 |
|---|---|
| Services billed | 101 across 13 procedure codes |
| Paid by Medicare | $800.71 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,314 · 10,221 30-day fills |
|---|---|
| Patients | 364 |
| Total drug cost | $435,412 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Touro Un College of Osteopathic Medicine, Vallejo |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Family Practice |
Medical group
- Community Health Centers of the Central Coast IncNipomo, CA · 73 clinicians
Hospital affiliations
- French Hospital Medical CenterSan Luis Obispo, CA
- Marian Regional Medical CenterSanta Maria, CA
Other facilities
- Central Coast Home Health IncHome health agency · San Luis Obispo, CA
- Dignity Health Home HealthHome health agency · Santa Maria, CA
Industry payments (Open Payments)
- 2025$187.97 · 3 payments from 3 companies
- 2024$28.04 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Steris Corporation | $158.48 | 1 |
| Exact Sciences Corporation | $15.59 | 1 |
| Astrazeneca Pharmaceuticals LP | $13.90 | 1 |
What the 2025 payments were for
- Food and Beverage$187.97 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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