Andrew Tin Yul Wong, D.O.
Emergency Medicine Physician · San Leandro, CA
Andrew Tin Yul Wong, D.O. is an emergency medicine physician with a practice address in San Leandro, California, and NPI 1942403860, issued on Jun 7, 2007. Check the license (California 20A9437, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Tin Yul Wong
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A9437 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Merced Street, San Leandro, CA 94577
- Phone
- (510) 454-1000
- Enumerated
- Jun 7, 2007
- Record last updated
- Feb 11, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2500 Merced Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Au, PHARM DPharmacist1497803670
- Jacob Bayani, C.R.N.ACertified Registered Nurse Anesthetist1285690446
- Mary Ann Bloyer, C.N.M.Advanced Practice Midwife1003952276
- Jungsuk Byun, PHARMPharmacist1174675029
- Linda Chang, PHARM DPharmacist1629126826
- Chunting Chuang, PHARM DPharmacist1134394018
Verify Andrew Tin Yul Wong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9437Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average emergency medicine physician in 2024
135 Medicare Part D claims for 101 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 13 claims were for opioids.
Most prescribed
- Cefadroxil14 claims
- Albuterol Sulfate Hfa11 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.
Andrew Tin Yul Wong among 7,751 emergency medicine physician records in California
Andrew Tin Yul Wong, D.O. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 emergency medicine physician records list a practice address in San Leandro
They are 59 of the 4,976 NPPES records with a practice address in San Leandro, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Leandro → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Rabiatu Abdullah, M.D.San Leandro, CA 945771497833248
- Marc Andrews, M.D.San Leandro, CA 945771588743637
- Lewis Baker, M.D.San Leandro, CA 945771912085762
- George Brown, M.D.San Leandro, CA 945771174601660
- Calder Conner, MDSan Leandro, CA 945771770537433
- Brian Cutcliffe, M.D.San Leandro, CA 945771679652721
- Robert Fan, M.D.San Leandro, CA 945771316987977
- Jay Goldman, M.D.San Leandro, CA 945771427136282
Common questions
What is Andrew Tin Yul Wong, D.O.'s NPI number?
Andrew Tin Yul Wong, D.O.'s National Provider Identifier (NPI) is 1942403860, issued on Jun 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Tin Yul Wong, D.O. located?
The NPPES record lists a practice address at 2500 Merced Street, San Leandro, CA, 94577. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.
How can I verify Andrew Tin Yul Wong, D.O.'s license?
NPPES lists California license number 20A9437, 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 Andrew Tin Yul Wong, D.O. prescribe under Medicare Part D?
In 2024, Andrew Tin Yul Wong, D.O. had 135 Medicare Part D claims for 101 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.
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.