Joseph Son Tan, M.D.
Gastroenterology Physician · Paramount, CA
Joseph Son Tan, M.D. is a gastroenterology physician with a practice address in Paramount, California, and NPI 1629149901, issued on Nov 10, 2006. Check the license (California A40103, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joseph Son Tan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A40103 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16660 Paramount Blvd, Paramount, CA 90723
- Phone
- (562) 404-0503
- Enumerated
- Nov 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (562) 529-8828
- Medicaid ID
- 00A401031 CA
- Entity
- Type 1 · individual
Also registered at 16660 Paramount Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elizabeth FridayFamily Nurse Practitioner1851855779
Verify Joseph Son Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A40103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other gastroenterology physician records in California
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- Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
- Basim Abdelkarim, MDUpland, CA1932217544
- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
Common questions
What is Joseph Son Tan, M.D.'s NPI number?
Joseph Son Tan, M.D.'s National Provider Identifier (NPI) is 1629149901, issued on Nov 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Son Tan, M.D. located?
The NPPES record lists a practice address at 16660 Paramount Blvd, Paramount, CA, 90723. Phone: (562) 404-0503. Providers update this record themselves, so call before visiting.
How can I verify Joseph Son Tan, M.D.'s license?
NPPES lists California license number A40103, 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.