Theodore Mark Tsai, PHARM.D.
Pharmacist · San Diego, CA
Theodore Mark Tsai, PHARM.D. is a pharmacist with a practice address in San Diego, California, and NPI 1134490055, issued on Jan 24, 2012. Check the license (California 54134, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Theodore Mark Tsai
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 54134 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5504 Balboa Ave, San Diego, CA 92111
- Phone
- (858) 495-9155
- Enumerated
- Jan 24, 2012
- Record last updated
- Jan 24, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (858) 495-9142
- Entity
- Type 1 · individual
Also registered at 5504 Balboa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theodore Mark Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1,555 pharmacist records list a practice address in San Diego
They are 1,555 of the 52,937 NPPES records with a practice address in San Diego, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,555 in San Diego → All 32,533 in California → Every provider in San Diego →
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- Cassi Aarvig, RPHTracy, CA1023679941
- Meara Michi AbadOrange, CA1750181178
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- Sandy Abadir, RPHChino Hills, CA1811644412
Common questions
What is Theodore Mark Tsai, PHARM.D.'s NPI number?
Theodore Mark Tsai, PHARM.D.'s National Provider Identifier (NPI) is 1134490055, issued on Jan 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Theodore Mark Tsai, PHARM.D. located?
The NPPES record lists a practice address at 5504 Balboa Ave, San Diego, CA, 92111. Phone: (858) 495-9155. Providers update this record themselves, so call before visiting.
How can I verify Theodore Mark Tsai, PHARM.D.'s license?
NPPES lists California license number 54134, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.