NPPES file of Aug 9, 2026

Ka Wah Chan, M.D.

Pediatric Hematology & Oncology Physician · San Antonio, TX

Ka Wah Chan, M.D. is a pediatric hematology & oncology physician with a practice address in San Antonio, Texas, and NPI 1134186034, issued on Apr 26, 2006. Check the license (Texas J2535, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1134186034
Name
Ka Wah Chan
Credential
M.D.
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License number
J2535 TX
Self-reported in NPPES; status is on the state search
Practice location
4410 Medical Dr, San Antonio, TX 78229
Phone
(210) 575-2222
Enumerated
Apr 26, 2006
Record last updated
May 26, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(210) 575-6373
Medicaid ID
130467713 TX
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4410 Medical Dr

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

  1. Charles Andrews, M.D.Pulmonary Disease Physician1467459578
  2. Roberto Aranibar, MDNeurological Surgery Physician1629079298
  3. Donald Atkins, MDNeurological Surgery Physician1245231729
  4. Christopher Bogaev, MDNeurological Surgery Physician1538160106
  5. Catherine Brigman, M.D.Pediatric Gastroenterology Physician1295889400
  6. Kathleen Buckley, CPNPNurse Practitioner1437110202

Verify Ka Wah Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J2535    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 Texas license search

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85% fewer Medicare Part D claims than the average pediatric hematology & oncology physician in 2024

14 Medicare Part D claims, against an average of 94 among the 300 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ka Wah Chan14
  2. Specialty average94

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Pediatric Hematology & Oncology Physician providers in Texas

There are 319 pediatric hematology & oncology physician records in Texas.

All 319 in Texas → Every provider in San Antonio →

Other pediatric hematology & oncology physician records in Texas

  1. Mohammad Abu Arja, MDHouston, TX1235626839
  2. Omama Ahmad, MDSan Antonio, TX1679192165
  3. Nabil Ahmed, MDHouston, TX1508928607
  4. Gladstone Airewele, M.D.Houston, TX1285630244
  5. Mohamad Al-Rahawan, M.D.Lubbock, TX1750316923
  6. Karen Albritton, MDFort Worth, TX1982664074
  7. Carl Allen, MDHouston, TX1447414560
  8. Shaikha AlqahtaniHouston, TX1154817807
  9. James Amatruda, MD PHDDallas, TX1689643140
  10. Shaniqua Anum, MDHouston, TX1508228453

Common questions

What is Ka Wah Chan, M.D.'s NPI number?

Ka Wah Chan, M.D.'s National Provider Identifier (NPI) is 1134186034, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ka Wah Chan, M.D. located?

The NPPES record lists a practice address at 4410 Medical Dr, San Antonio, TX, 78229. Phone: (210) 575-2222. Providers update this record themselves, so call before visiting.

How can I verify Ka Wah Chan, M.D.'s license?

NPPES lists Texas license number J2535, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ka Wah Chan, M.D. prescribe under Medicare Part D?

In 2024, Ka Wah Chan, M.D. had 14 Medicare Part D claims; the average among pediatric hematology & oncology physician prescribers was 94. Part D covers Medicare prescriptions only.

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.

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.