James C. Liu, M.D.
Ophthalmology Physician · Cupertino, CA
James C. Liu, M.D. is an ophthalmology physician with a practice address in Cupertino, California, and NPI 1831139997, issued on Jun 7, 2006. Check the license (California A47984, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James C. Liu
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A47984 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10300 S DE Anza Blvd, Cupertino, CA 95014
- Phone
- (408) 253-3083
- Enumerated
- Jun 7, 2006
- Record last updated
- Nov 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (408) 253-2965
- Medicaid ID
- 00A479840 CA
- Medicare enrollment
- Enrolled (PECOS I20080814000614); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 10300 S DE Anza Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tarek El-Sawy, M.D.Ophthalmology Physician1922269083
- Sonya Park, M.D.Optometrist1609819614
Verify James C. Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A47984Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average ophthalmology physician in 2024
3,364 Medicare Part D claims for 780 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Latanoprost1,002 claims
- Prednisolone Acetate423 claims
- Diclofenac Sodium398 claims
- Ofloxacin385 claims
- Dorzolamide Hcl239 claims
- Brimonidine Tartrate124 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 practice group's MIPS final score for 2023 (Medicare payment program): 83.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $94.00
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Spectrum Eye Physicians A Medical CorporationSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James C. Liu among 2,899 ophthalmology physician records in California
James C. Liu, 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
- Graduated1985 · median 2001 among the 1,907 with a school on file
- Record last updated2011 · 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 Cupertino → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Deborah Alcorn, MDCupertino, CA 950141346332780
- Tarek El-Sawy, M.D.Cupertino, CA 950141922269083
- Huan PhanCupertino, CA 950141841208352
- Lawrence Birndorf, MDFreedom, CA 950191558450932
- John Crowder, MDFreedom, CA 950191215021480
- Conrad Hamako, MDFreedom, CA 950191679675029
- Anne Kato, M.D.Freedom, CA 950191871849984
- Louis CaiCampbell, CA 950081194220632
Common questions
What is James C. Liu, M.D.'s NPI number?
James C. Liu, M.D.'s National Provider Identifier (NPI) is 1831139997, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James C. Liu, M.D. located?
The NPPES record lists a practice address at 10300 S DE Anza Blvd, Cupertino, CA, 95014. Phone: (408) 253-3083. Providers update this record themselves, so call before visiting.
How can I verify James C. Liu, M.D.'s license?
NPPES lists California license number A47984, 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 James C. Liu, M.D. prescribe under Medicare Part D?
In 2024, James C. Liu, M.D. had 3,364 Medicare Part D claims for 780 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is James C. Liu, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.7 of 100, reported for the practice group. 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.