Tiffany Michelle King, D.O.
NPI 1023386174ActiveIndividual· Internal Medicine· Walnut Creek, CA
Internal Medicine (D.O.) in Walnut Creek, California, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2010). In 2024 Medicare paid $139,907 for 514 patients, and Part D covered 860 of their prescriptions, 81% of them generic.
Overview
| NPI | 1023386174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Dec 5, 2011 |
| Last updated in NPPES | Feb 25, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A11898 | 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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 514 |
|---|---|
| Services billed | 1,697 across 15 procedure codes |
| Paid by Medicare | $139,907 |
Part D prescriptions in 2024
| Prescriptions (claims) | 860 · 904 30-day fills |
|---|---|
| Patients | 165 |
| Total drug cost | $92,682 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Hospitalist |
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Other facilities
- A1 Pro Home Health Inc.Home health agency · San Leandro, CA
- Aspire Home HealthHome health agency · Hayward, CA
- Amavi Home Health and Hospice Care Services, IncHospice · Brentwood, CA
- Diablo Valley Post AcuteNursing home · Concord, CA
- Pleasant Hill Post AcuteNursing home · Pleasant Hill, CA
- Shadelands Post AcuteNursing home · Walnut Creek, CA
- Tice Valley Post AcuteNursing home · Walnut Creek, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 204 internal medicine physicians in Walnut Creek · All internal medicine physicians in California