Ian Tso Chuang, M.D.
Emergency Medicine Physician · Vallejo, CA
Ian Tso Chuang, M.D. is an emergency medicine physician with a practice address in Vallejo, California, and NPI 1386650521, issued on Jul 31, 2006. Check the license (California A83521, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ian Tso Chuang
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A83521 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Hospital Dr, Vallejo, CA 94589
- Phone
- (707) 554-4444
- Enumerated
- Jul 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 300 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ian Ahwah, M.D.Emergency Medicine Physician1699795146
- Robert Anderson, M.D.Internal Medicine Physician1265454623
- Richard Bell, MDNeonatal-Perinatal Medicine Physician1922161298
- Walter Berkheimer, MDNeonatal-Perinatal Medicine Physician1386707669
- Michael Brodsky, M.D.Diagnostic Radiology Physician1497781348
- Michelle Davis, MDEmergency Medicine Physician1841722592
Verify Ian Tso Chuang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A83521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55 emergency medicine physician records list a practice address in Vallejo
They are 55 of the 2,836 NPPES records with a practice address in Vallejo, and 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 55 in Vallejo → All 7,751 in California → Every provider in Vallejo →
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is Ian Tso Chuang, M.D.'s NPI number?
Ian Tso Chuang, M.D.'s National Provider Identifier (NPI) is 1386650521, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ian Tso Chuang, M.D. located?
The NPPES record lists a practice address at 300 Hospital Dr, Vallejo, CA, 94589. Phone: (707) 554-4444. Providers update this record themselves, so call before visiting.
How can I verify Ian Tso Chuang, M.D.'s license?
NPPES lists California license number A83521, 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.
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.