Liana Yungay Lam, O.D.
Optometrist · Petaluma, CA
Liana Yungay Lam, O.D. is an optometrist with a practice address in Petaluma, California, and NPI 1437291028, issued on Feb 12, 2007. Check the license (California 10706T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Liana Yungay Lam
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 10706T CA
Self-reported in NPPES; status is on the state search - Practice location
- 3900 Lakeville Hwy, Petaluma, CA 94954
- Phone
- (707) 765-3930
- Enumerated
- Feb 12, 2007
- Record last updated
- Jan 3, 2022
- Medicare enrollment
- Enrolled (PECOS I20121119000477); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 1996
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 3900 Lakeville Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew AndersonPharmacist1336673110
- Suzanne Aoyagi, PHARMDPharmacist1497289268
- John Arden, PHDPsychologist1841351053
- Caroline Barnhart, MDObstetrics & Gynecology Physician1437618774
- Alexis Becker, CNMMidwife1225112584
- Sharina Belani, MDInternal Medicine Physician1700958550
Verify Liana Yungay Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 10706TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average optometrist in 2024
494 Medicare Part D claims for 168 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Latanoprost333 claims
- Timolol Maleate44 claims
- Levobunolol Hcl20 claims
- Cyclosporine18 claims
- Brimonidine Tartrate16 claims
- Dorzolamide-Timolol13 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: $122.27
1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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.
Bills Medicare through one group practice
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Liana Yungay Lam among 8,308 optometrist records in California
Liana Yungay Lam, O.D. 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 2007, is newer than 34% of them.
- NPI issued2007 · 34% of these records are older, 46% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1996 · median 2008 among the 3,573 with a school on file
- Record last updated2022 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Petaluma → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Richard Aston, O.D.Petaluma, CA 949541518939156
- Marques Bostic, O.DPetaluma, CA 949541265753404
- Laura Carter, OD, MPHPetaluma, CA 949541932834355
- Frank Chao, O.D.Petaluma, CA 949541639228448
- Junn Cho, ODPetaluma, CA 949541609596535
- Ronald Harris, O.D.Petaluma, CA 949541437159803
- Jean Brennan, O.D.Petaluma, CA 949521740321710
- Mina Chen, ODPetaluma, CA 949521982263265
Common questions
What is Liana Yungay Lam, O.D.'s NPI number?
Liana Yungay Lam, O.D.'s National Provider Identifier (NPI) is 1437291028, issued on Feb 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Liana Yungay Lam, O.D. located?
The NPPES record lists a practice address at 3900 Lakeville Hwy, Petaluma, CA, 94954. Phone: (707) 765-3930. Providers update this record themselves, so call before visiting.
How can I verify Liana Yungay Lam, O.D.'s license?
NPPES lists California license number 10706T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Liana Yungay Lam, O.D. prescribe under Medicare Part D?
In 2024, Liana Yungay Lam, O.D. had 494 Medicare Part D claims for 168 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.