John Joseph Champlin, M.D.
NPI 1891865408ActiveIndividual· Family Medicine· Carmichael, CA
Family Medicine (M.D.) in Carmichael, California, trained at University of Florida College of Medicine (class of 1983). 186 Medicare patients in 2024, $164,671 paid; nearly all of their 1,092 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $244.53 in all, mostly food and beverage.
Overview
| NPI | 1891865408 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 9, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 00G531130 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 186 |
|---|---|
| Services billed | 15,552 across 80 procedure codes |
| Paid by Medicare | $164,671 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,092 · 1,915 30-day fills |
|---|---|
| Patients | 92 |
| Total drug cost | $112,223 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Florida College of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Family Practice |
| Secondary specialties | General Practice |
| Telehealth | Offers telehealth |
Hospital affiliation
- Sutter Roseville Medical CenterRoseville, CA
Industry payments (Open Payments)
- 2025$244.53 · 15 payments from 4 companies
- 2024$139.83 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $151.37 | 10 |
| Exact Sciences Corporation | $42.64 | 2 |
| Collegium Pharmaceutical, Inc. | $27.88 | 2 |
| Lilly USA, LLC | $22.64 | 1 |
What the 2025 payments were for
- Food and Beverage$244.53 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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