Mark Kuang-Mian Tu, M.D.
NPI 1144262452ActiveIndividual· Radiology, Diagnostic Radiology· Walnut Creek, CA
Radiology, Diagnostic Radiology (M.D.) in Walnut Creek, California, trained at University of Texas Medical Branch at Galveston (class of 1994). Medicare paid $250,141 for services to 4,418 patients in 2024. Stryker Corporation reported $34.71 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1144262452 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 12, 2006 |
| Last updated in NPPES | Apr 2, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | A60238 | 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 - Diagnostic Radiology (CA); Practitioner - Diagnostic Radiology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 4,418 |
|---|---|
| Services billed | 6,818 across 142 procedure codes |
| Paid by Medicare | $250,141 |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- County of Santa ClaraSan Jose, CA · 1,022 clinicians
- Bay Imaging Consultants Medical Group IncVallejo, CA · 146 clinicians
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA · 113 clinicians
- John Muir Magnetic Imaging CenterConcord, CA · 57 clinicians
Hospital affiliations
- Good Samaritan HospitalSan Jose, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Santa Clara Valley Medical CenterSan Jose, CA
- Sutter Delta Medical CenterAntioch, CA
Industry payments (Open Payments)
- 2025$34.71 · 1 payment from 1 company
- 2024$41.25 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $34.71 | 1 |
What the 2025 payments were for
- Food and Beverage$34.71 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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