NPPES file of Aug 9, 2026

Donald Chun Lai Chan, MD

Diagnostic Radiology Physician · Redwood City, CA

Donald Chun Lai Chan, MD is a diagnostic radiology physician with a practice address in Redwood City, California, and NPI 1235768268, issued on Apr 2, 2020. Check the license (California A188695, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235768268
Name
Donald Chun Lai Chan
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A188695 CA
Self-reported in NPPES; status is on the state search
Practice location
905 Maple St, Redwood City, CA 94063
Phone
(650) 299-3930
Enumerated
Apr 2, 2020
Record last updated
Jul 8, 2026
Medicare enrollment
Enrolled (PECOS I20250917003832); may accept Medicare assignment
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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8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →

Also registered at 905 Maple St

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

  1. Sarah BartyRegistered Nurse1306721618
  2. Megan Demots, DPTPhysical Therapist1831086800
  3. Shawna McCarthyCertified Respiratory Therapist1265367940
  4. Theresa Nguyen, D.O.Ophthalmology Physician1427206093
  5. William Wang, MDStudent in an Organized Health Care Education/Training Program1669913984

Verify Donald Chun Lai Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A188695    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

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Donald Chun Lai Chan among 4,500 diagnostic radiology physician records in California

Donald Chun Lai Chan, MD 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 not. Its NPI, issued in 2020, is newer than 94% of them.

  • NPI issued2020 · 94% of these records are older, 3% newer
  • In a Medicare fileNo · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2020 · median 2004 among the 3,130 with a school on file
  • Record last updated2026 · 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).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,500 in California → Every provider in Redwood City → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Sherry Butler, MDRedwood City, CA 940631124106778
  2. Radhika Dave, M.D.Redwood City, CA 940631881836047
  3. Damon Miller, MDRedwood City, CA 940631043338163
  4. Todd Osinski, M.D.Redwood City, CA 940631114973518
  5. Roopa Vemireddy, M.D.Redwood City, CA 940631376750059
  6. Vincent Burke, M.D.Redwood City, CA 940621447299201
  7. Avani GuptaRedwood City, CA 940621760657415
  8. Kiren Jain, MDRedwood City, CA 940621558324582

Common questions

What is Donald Chun Lai Chan, MD's NPI number?

Donald Chun Lai Chan, MD's National Provider Identifier (NPI) is 1235768268, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Donald Chun Lai Chan, MD located?

The NPPES record lists a practice address at 905 Maple St, Redwood City, CA, 94063. Phone: (650) 299-3930. Providers update this record themselves, so call before visiting.

How can I verify Donald Chun Lai Chan, MD's license?

NPPES lists California license number A188695, 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.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.