Xiao Yang, M.D.
NPI 1548220304ActiveIndividual· Internal Medicine· Pittsburg, CA
Internal Medicine (M.D.) in Pittsburg, California, licensed in CA and KS, with an NPI issued in March 2006. Their prescriptions cost Medicare Part D more than their services did: $389,531 for 2,740 claims, against $192,679 paid for services in 2024. Abbott Laboratories reported $169.33 in payments in 2025, mostly food and beverage. Lists John Muir Medical Center - Walnut Creek Campus as a hospital affiliation.
Overview
| NPI | 1548220304 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 24, 2006 |
| Last updated in NPPES | Feb 18, 2026 |
| Certified by provider | Feb 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A94954 | CA |
| Hospitalist | 208M00000X | A94954 | CA |
| Internal Medicine | 207R00000X | 0430644 | KS |
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 | 154 |
|---|---|
| Services billed | 1,920 across 18 procedure codes |
| Paid by Medicare | $192,679 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,740 · 6,400 30-day fills |
|---|---|
| Patients | 217 |
| Total drug cost | $389,531 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$169.33 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $169.33 | 1 |
What the 2025 payments were for
- Food and Beverage$169.33 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 internal medicine physicians in Pittsburg · All internal medicine physicians in California