Tiffany Lieu Phan, OD
Optometrist · Monterey Park, CA
Tiffany Lieu Phan, OD is an optometrist with a practice address in Monterey Park, California, and NPI 1508416561, issued on Sep 11, 2019. Check the license (California 34394TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tiffany Lieu Phan
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34394TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 1910 Holly Oak Dr, Monterey Park, CA 91755
- Phone
- (626) 475-8328
- Enumerated
- Sep 11, 2019
- Record last updated
- Jun 30, 2024
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Tiffany Lieu Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34394TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average optometrist in 2024
67 Medicare Part D claims for 27 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Latanoprost29 claims
- Neomycin-Polymyxin-Dexameth13 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.
Tiffany Lieu Phan among 8,308 optometrist records in California
Tiffany Lieu Phan, 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2024 · 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).
26 optometrist records list a practice address in Monterey Park
They are 26 of the 948 NPPES records with a practice address in Monterey Park, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Monterey Park → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Matthew Cheung, ODMonterey Park, CA 917551225762040
- Miya Iwakiri, O.D.Monterey Park, CA 917551427391093
- Kelly Lee, O.D.Monterey Park, CA 917551578729273
- David Rearwin, O.D.Monterey Park, CA 917551629249800
- Jenny Soo Hoo, O.D.Monterey Park, CA 917551124401427
- Nicole Sun, O.D.Monterey Park, CA 917551780954701
- Rex YangMonterey Park, CA 917551366339202
- Emery Chan, O.D.Monterey Park, CA 917541265823249
Common questions
What is Tiffany Lieu Phan, OD's NPI number?
Tiffany Lieu Phan, OD's National Provider Identifier (NPI) is 1508416561, issued on Sep 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Lieu Phan, OD located?
The NPPES record lists a practice address at 1910 Holly Oak Dr, Monterey Park, CA, 91755. Phone: (626) 475-8328. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Lieu Phan, OD's license?
NPPES lists California license number 34394TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tiffany Lieu Phan, OD prescribe under Medicare Part D?
In 2024, Tiffany Lieu Phan, OD had 67 Medicare Part D claims for 27 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.