John Frederick Macmillan, MD
NPI 1568449015ActiveIndividual· Internal Medicine· Sacramento, CA
Internal Medicine (MD) with Regents of the Univ of Ca, practicing in Sacramento, California. Mostly services rather than prescriptions: Medicare paid $29,134 for 139 patients in 2024, with only 43 Part D claims. Abbvie Inc. reported $122.31 in payments in 2024, mostly food and beverage. Lists University of California Davis Medical Center as a hospital affiliation.
Overview
| NPI | 1568449015 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 27, 2005 |
| Last updated in NPPES | Apr 21, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A688400 | CA |
| Hospitalist | 208M00000X | A688400 | CA |
| Internal Medicine, Hospice and Palliative Medicine | 207RH0002X | A68840 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 388 across 12 procedure codes |
| Paid by Medicare | $29,134 |
Part D prescriptions in 2024
| Prescriptions (claims) | 43 · 53 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $2,077 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospice/Palliative Care, Hospitalist |
Medical group
- Regents of the Univ of CaSacramento, CA · 1,584 clinicians
Hospital affiliation
- University of California Davis Medical CenterSacramento, CA
Other facilities
- Uc Davis Hospice ProgramHospice · Rancho Cordova, CA
Industry payments (Open Payments)
- 2024$122.31 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $122.31 | 1 |
What the 2024 payments were for
- Food and Beverage$122.31 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 652 internal medicine physicians in Sacramento · All internal medicine physicians in California