Andrea Y. Tam, OD
Optometrist · Baldwin Park, CA
Andrea Y. Tam, OD is an optometrist with a practice address in Baldwin Park, California, and NPI 1811563174, issued on May 27, 2021. Check the license (California OPT35112-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrea Y. Tam
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT35112-TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Phone
- (833) 574-2273
- Enumerated
- May 27, 2021
- Record last updated
- Aug 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20231117003069); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1011 Baldwin Park Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Abdulla, M.D.Surgery Physician1699200840
- Julia Aburto-Erazo, NPNurse Practitioner1922175777
- Mauricio Acevedo, MDInternal Medicine Physician1659442614
- Helen Achio, PHARM.D.Pharmacist1225114614
- Olufemi Adenuga, M.D, MPHPulmonary Disease Physician1134389125
- Soma Agarwal, MDOphthalmology Physician1437220316
Verify Andrea Y. Tam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT35112-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average optometrist in 2024
145 Medicare Part D claims for 68 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Latanoprost64 claims
- Timolol Maleate18 claims
- Cyclosporine12 claims
- Brimonidine Tartrate11 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupBaldwin Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea Y. Tam among 8,308 optometrist records in California
Andrea Y. Tam, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2021 · median 2008 among the 3,573 with a school on file
- Record last updated2025 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 optometrist records list a practice address in Baldwin Park
They are 23 of the 1,055 NPPES records with a practice address in Baldwin Park, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Baldwin Park → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Phyllis Ardary, ODBaldwin Park, CA 917061134277056
- Robert Chew, ODBaldwin Park, CA 917061801944749
- Shirley Chew, ODBaldwin Park, CA 917061588712426
- Linda Chun, ODBaldwin Park, CA 917061770631681
- Melissa Ghoo, O.D.Baldwin Park, CA 917061730244096
- Karen Kang, ODBaldwin Park, CA 917061467577965
- Alan Leventhal, ODBaldwin Park, CA 917061669409710
- Daniel Martinez, O.D.Baldwin Park, CA 917061184688004
Common questions
What is Andrea Y. Tam, OD's NPI number?
Andrea Y. Tam, OD's National Provider Identifier (NPI) is 1811563174, issued on May 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Andrea Y. Tam, OD located?
The NPPES record lists a practice address at 1011 Baldwin Park Blvd, Baldwin Park, CA, 91706. Phone: (833) 574-2273. Providers update this record themselves, so call before visiting.
How can I verify Andrea Y. Tam, OD's license?
NPPES lists California license number OPT35112-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Andrea Y. Tam, OD prescribe under Medicare Part D?
In 2024, Andrea Y. Tam, OD had 145 Medicare Part D claims for 68 beneficiaries; the average among optometrist prescribers was 277. 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.