Lily Koo Lin, M.D.
Ophthalmology Physician · Sacramento, CA
Lily Koo Lin, M.D. is an ophthalmology physician with a practice address in Sacramento, California, and NPI 1306908108, issued on Dec 15, 2006. Check the license (California A90256, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lily Koo Lin
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A90256 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4860 Y St, Sacramento, CA 95817
- Phone
- (916) 734-6603
- Enumerated
- Dec 15, 2006
- Record last updated
- Sep 18, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (916) 734-6992
- Medicare enrollment
- Enrolled (PECOS I20050627001281); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2001
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 4860 Y St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lily Koo Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90256Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average ophthalmology physician in 2024
384 Medicare Part D claims for 239 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 53 claims were for opioids.
Most prescribed
- Erythromycin143 claims
- Neomycin-Polymyxin-Dexameth89 claims
- Hydrocodone-Acetaminophen40 claims
- Amoxicillin-Clavulanate Potass22 claims
- Prednisone17 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.
The MIPS final score for 2023 (Medicare payment program): 90.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Regents OF The Univ OF CASacramento, CA
- Regents OF The University OF CaliforniaRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lily Koo Lin among 2,899 ophthalmology physician records in California
Lily Koo Lin, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2001 among the 1,907 with a school on file
- Record last updated2007 · 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Sacramento → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- James Brandt, M.D.Sacramento, CA 958171578544136
- Jeffrey Caspar, M.D.Sacramento, CA 958171609850452
- David Chu, MDSacramento, CA 958171427190578
- John Keltner, M.D.Sacramento, CA 958171659353522
- Esther Kim, M.D.Sacramento, CA 958171740265073
- Michele Lim, M.D.Sacramento, CA 958171962487025
- William Lloyd, M.D.Sacramento, CA 958171710961479
- Lawrence Morse, M.D.Sacramento, CA 958171255315917
Common questions
What is Lily Koo Lin, M.D.'s NPI number?
Lily Koo Lin, M.D.'s National Provider Identifier (NPI) is 1306908108, issued on Dec 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lily Koo Lin, M.D. located?
The NPPES record lists a practice address at 4860 Y St, Sacramento, CA, 95817. Phone: (916) 734-6603. Providers update this record themselves, so call before visiting.
How can I verify Lily Koo Lin, M.D.'s license?
NPPES lists California license number A90256, 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 Lily Koo Lin, M.D. prescribe under Medicare Part D?
In 2024, Lily Koo Lin, M.D. had 384 Medicare Part D claims for 239 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Lily Koo Lin, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.