James Ramsay Halverson, M.D.
NPI 1720044787ActiveIndividual· Family Medicine· Ojai, CA
Family Medicine (M.D.) in Ojai, California, trained at Duke University School of Medicine (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $735,418 for 10,103 claims, against $252,476 paid for services in 2024. Edwards Lifesciences Corporation was the largest of 3 companies reporting payments in 2025, $150.48 in all, mostly food and beverage.
Overview
| NPI | 1720044787 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Oct 18, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G51412 | 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 | 792 |
|---|---|
| Services billed | 6,945 across 73 procedure codes |
| Paid by Medicare | $252,476 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,103 · 21,110 30-day fills |
|---|---|
| Patients | 1,026 |
| Total drug cost | $735,418 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Family Practice |
Medical group
- Primary Medical Group of Ventura County IncVentura, CA · 41 clinicians
Hospital affiliations
- Community Memorial Hospital - OjaiOjai, CA
- Community Memorial Hospital - VenturaVentura, CA
Other facilities
- Assisted Home CareHome health agency · Ventura, CA
- Farmer's Home HealthHome health agency · Ventura, CA
- Livingston Memorial Visiting Nurse AssociationHome health agency · Ventura, CA
- Mission Home Health of Ventura, LLCHome health agency · Oxnard, CA
Industry payments (Open Payments)
- 2025$150.48 · 3 payments from 3 companies
- 2024$15.97 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $108.22 | 1 |
| Lnhc, Inc | $24.07 | 1 |
| Lilly USA, LLC | $18.19 | 1 |
What the 2025 payments were for
- Food and Beverage$150.48 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 family medicine physicians in Ojai · All family medicine physicians in California