Amy Wingshan Lam, O.D.
Optometrist · Mission Viejo, CA
Amy Wingshan Lam, O.D. is an optometrist with a practice address in Mission Viejo, California, and NPI 1578615910, issued on Jan 17, 2007. Check the license (California 12879T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Amy Wingshan Lam
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 12879T CA
Self-reported in NPPES; status is on the state search - Practice location
- 555 Shops AT Mission Viejo, Mission Viejo, CA 92691
- Phone
- (949) 364-4010
- Enumerated
- Jan 17, 2007
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 364-4001
- Medicare enrollment
- Enrolled (PECOS I20070420000427); accepts Medicare assignment
- Medical or professional school
- State University Of New York - State College Optometry, 2005
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 555 Shops AT Mission Viejo
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joo Chi, O.D.Optometrist1285785949
- Kathryn Fallon Mijailovic, O.D.Optometrist1659436426
- Jean Feneis, O.D.Optometrist1538224308
- Jennifer Gong, O.D.Optometrist1245382738
- David Ho, O.D.Optometrist1265584536
- Wayne Kajimura, O.D.Optometrist1881747327
Verify Amy Wingshan 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 12879TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average optometrist in 2024
147 Medicare Part D claims for 49 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Latanoprost77 claims
- Timolol Maleate17 claims
- Neomycin-Polymyxin-Dexameth12 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 GroupPorter Ranch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy Wingshan Lam among 8,308 optometrist records in California
Amy Wingshan 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
- Graduated2005 · median 2008 among the 3,573 with a school on file
- Record last updated2021 · 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).
58 optometrist records list a practice address in Mission Viejo
They are 58 of the 2,156 NPPES records with a practice address in Mission Viejo, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Mission Viejo → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Leila Ahmadi, O.D.Mission Viejo, CA 926911962595009
- Atousa Attar, O.D.Mission Viejo, CA 926911689619512
- Diana Ciobanu, O.D.Mission Viejo, CA 926911013002179
- James Dugue, O.D.Mission Viejo, CA 926911659306330
- Kathryn Fallon Mijailovic, O.D.Mission Viejo, CA 926911659436426
- Keith Farson, O.D.Mission Viejo, CA 926911366419798
- Jean Feneis, O.D.Mission Viejo, CA 926911538224308
- Linda Hsieh, O.D.Mission Viejo, CA 926911205846961
Common questions
What is Amy Wingshan Lam, O.D.'s NPI number?
Amy Wingshan Lam, O.D.'s National Provider Identifier (NPI) is 1578615910, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Amy Wingshan Lam, O.D. located?
The NPPES record lists a practice address at 555 Shops AT Mission Viejo, Mission Viejo, CA, 92691. Phone: (949) 364-4010. Providers update this record themselves, so call before visiting.
How can I verify Amy Wingshan Lam, O.D.'s license?
NPPES lists California license number 12879T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Amy Wingshan Lam, O.D. prescribe under Medicare Part D?
In 2024, Amy Wingshan Lam, O.D. had 147 Medicare Part D claims for 49 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.