Kathryn Amacher, DO
NPI 1366545568ActiveIndividual· Internal Medicine, Geriatric Medicine· Vacaville, CA
Internal Medicine, Geriatric Medicine (DO) in Vacaville, California, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,080,271 for 15,871 claims, against $288,671 paid for services in 2024.
Overview
| NPI | 1366545568 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Mar 27, 2020 |
| Certified by provider | Mar 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 20A5091 | 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 | 725 |
|---|---|
| Services billed | 4,857 across 42 procedure codes |
| Paid by Medicare | $288,671 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,871 · 17,032 30-day fills |
|---|---|
| Patients | 527 |
| Total drug cost | $1,080,271 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
Medical group
- Snf Rehab OnlyVacaville, CA · 5 clinicians
Hospital affiliation
- Northbay Medical CenterFairfield, CA
Other facilities
- Accentcare Home Health of California, IncHome health agency · San Ramon, CA
- Angelcare Home Health Services, LLCHome health agency · Milpitas, CA
- Ascension Healthcare ServicesHome health agency · Campbell, CA
- Mission Home Health of Contra CostaHome health agency · Concord, CA
- Wellstar Home Health ServicesHome health agency · Vacaville, CA
- Bristol Hospice - East BayHospice · Pleasanton, CA
- Global Hospice and Pallative Care, IncHospice · Modesto, CA
- Vitas Healthcare Corporation of CaliforniaHospice · Sacramento, CA
- Arbor Rehabilitation & Nursing CenterNursing home · Lodi, CA
- Courtyard Health Care CenterNursing home · Davis, CA
- Laurel Creek Health CenterNursing home · Fairfield, CA
- Vacaville Convalescent and Rehabilitation CenterNursing home · Vacaville, CA
- Vacaville Ranch Post AcuteNursing home · Vacaville, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other geriatricians in Vacaville
- 1689561185