Tony Tseng, M.D., M.S.
Internal Medicine Physician · South Gate, CA
Tony Tseng, M.D., M.S. is an internal medicine physician with a practice address in South Gate, California, and NPI 1558523670, issued on Jun 30, 2008. Check the license (California A130532, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tony Tseng
- Credential
- M.D., M.S.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A130532 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3224 Santa Ana St, South Gate, CA 90280
- Phone
- (323) 763-1300
- Enumerated
- Jun 30, 2008
- Entity
- Type 1 · individual
Also registered at 3224 Santa Ana St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruby Angeles, R.P.TPhysical Therapist1831555267
- Yueh-Guei Book, PTPhysical Therapist1639102007
- Jeffrey Le, P.T.A.Physical Therapy Assistant1720445356
- John Wei, M.D.Internal Medicine Physician1689741654
Verify Tony Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A130532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
6,674 Medicare Part D claims for 313 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 216 claims were for opioids.
Most prescribed
- Atorvastatin Calcium335 claims
- Metformin Hcl243 claims
- Gabapentin227 claims
- Losartan Potassium227 claims
- Omeprazole222 claims
- Furosemide189 claims
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.
Industry payments in 2024: $325.09
14 payments, mostly food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Prohealth Partners, A Medical GroupLong Beach, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
8 internal medicine physician records list a South Gate practice address
They are 8 of the 466 NPPES records with a South Gate practice address, and 20,403 internal medicine physician records in California.
All 8 in South Gate → All 20,403 in California → Every provider in South Gate →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Tony Tseng, M.D., M.S.'s NPI number?
Tony Tseng, M.D., M.S.'s National Provider Identifier (NPI) is 1558523670, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Tony Tseng, M.D., M.S. located?
The NPPES record lists a practice address at 3224 Santa Ana St, South Gate, CA, 90280. Phone: (323) 763-1300. Providers update this record themselves, so call before visiting.
How can I verify Tony Tseng, M.D., M.S.'s license?
NPPES lists California license number A130532, 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.
How much does Tony Tseng, M.D., M.S. prescribe under Medicare Part D?
In 2024, Tony Tseng, M.D., M.S. had 6,674 Medicare Part D claims for 313 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.