NPPES file of Aug 9, 2026

Mark Kuang-Mian Tu, M.D.

Diagnostic Radiology Physician · Walnut Creek, CA

Mark Kuang-Mian Tu, M.D. is a diagnostic radiology physician with a practice address in Walnut Creek, California, and NPI 1144262452, issued on Jun 12, 2006. Check the license (California A60238, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144262452
Name
Mark Kuang-Mian Tu
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A60238 CA
Self-reported in NPPES; status is on the state search
Practice location
2125 Oak Grove RD, Walnut Creek, CA 94598
Phone
(925) 296-7150
Enumerated
Jun 12, 2006
Record last updated
Apr 2, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(925) 296-7171
Medicare enrollment
Enrolled (PECOS I20040722000724); may accept Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2125 Oak Grove RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Richard Baxter, M.D.Diagnostic Radiology Physician1356382956
  2. Robert BinderDiagnostic Radiology Physician1942241559
  3. Kimberly Blumberg, M.DDiagnostic Radiology Physician1316979925
  4. James Branscom, M.D.Diagnostic Radiology Physician1558304451
  5. Less Chafen, M.D.Diagnostic Radiology Physician1336131689
  6. Joseph Chan, M.D.Diagnostic Radiology Physician1043256720

Verify Mark Kuang-Mian Tu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A60238
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $41.25

2 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Tu$41.25
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 4 group practices

  1. Bay Imaging Consultants Medical Group IncWalnut Creek, CA
  2. County OF Santa ClaraSan Jose, CA
  3. John Muir Magnetic Imaging CenterWalnut Creek, CA
  4. John Muir Trauma Physicians Billing ServiceWalnut Creek, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Kuang-Mian Tu among 4,500 diagnostic radiology physician records in California

Mark Kuang-Mian Tu, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1994 · median 2004 among the 3,130 with a school on file
  • Record last updated2015 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

98 diagnostic radiology physician records list a practice address in Walnut Creek

They are 98 of the 6,170 NPPES records with a practice address in Walnut Creek, and 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Eric Bain, MDWalnut Creek, CA 945981922047190
  2. Richard Baxter, M.D.Walnut Creek, CA 945981356382956
  3. Robert BinderWalnut Creek, CA 945981942241559
  4. Less Chafen, M.D.Walnut Creek, CA 945981336131689
  5. George Chu, MDWalnut Creek, CA 945981952340465
  6. Sangeeta Gambhir, M.D.Walnut Creek, CA 945981144213299
  7. Molly Honegger, M.D.Walnut Creek, CA 945981780648766
  8. Christopher Krol, MDWalnut Creek, CA 945981114905007

Common questions

What is Mark Kuang-Mian Tu, M.D.'s NPI number?

Mark Kuang-Mian Tu, M.D.'s National Provider Identifier (NPI) is 1144262452, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Kuang-Mian Tu, M.D. located?

The NPPES record lists a practice address at 2125 Oak Grove RD, Walnut Creek, CA, 94598. Phone: (925) 296-7150. Providers update this record themselves, so call before visiting.

How can I verify Mark Kuang-Mian Tu, M.D.'s license?

NPPES lists California license number A60238, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Mark Kuang-Mian Tu, M.D.'s MIPS final score?

The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.