Michael Bruce Mizoguchi, M.D.
Ophthalmology Physician · Eureka, CA
Michael Bruce Mizoguchi, M.D. is an ophthalmology physician with a practice address in Eureka, California, and NPI 1861418808, issued on Jul 14, 2006. Check the license (California A70161, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Bruce Mizoguchi
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A70161 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2434 Harrison Ave, Eureka, CA 95501
- Phone
- (707) 443-5685
- Enumerated
- Jul 14, 2006
- Record last updated
- Aug 3, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 443-9880
- Medicaid ID
- 00A701610 CA
- Medicare enrollment
- Enrolled (PECOS I20100921001040); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 2434 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Larry ButcherOptician1972946762
- Mustafa Safi, MDCornea and External Diseases Specialist Physician1518325455
Verify Michael Bruce Mizoguchi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average ophthalmology physician in 2024
4,057 Medicare Part D claims for 711 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Latanoprost890 claims
- Prednisolone Acetate533 claims
- Timolol Maleate492 claims
- Moxifloxacin408 claims
- Brimonidine Tartrate351 claims
- Ketorolac Tromethamine257 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): 79.2 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).
Industry payments in 2024: $60.40
3 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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
- Humboldt Medical Eye AssociatesEureka, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Bruce Mizoguchi among 2,899 ophthalmology physician records in California
Michael Bruce Mizoguchi, 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
- Graduated1998 · median 2001 among the 1,907 with a school on file
- Record last updated2010 · 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 Eureka → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Louise Minor, PHD, MDEureka, CA 955011740289081
- Gregory Gibb, MDEureka, CA 955031467410829
- Christopher Lin, MD, FACSEureka, CA 955031811982291
- John Mastroni, MDEureka, CA 955031568420008
- Angus Stewart, M.D.Eureka, CA 955031497084933
- Stephen Tanaka, M.D.Union City, CA 954871790863553
- Jack Mason, MDUkiah, CA 954821245267087
- Geoffrey Rice, M.D.Ukiah, CA 954821194776948
Common questions
What is Michael Bruce Mizoguchi, M.D.'s NPI number?
Michael Bruce Mizoguchi, M.D.'s National Provider Identifier (NPI) is 1861418808, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Bruce Mizoguchi, M.D. located?
The NPPES record lists a practice address at 2434 Harrison Ave, Eureka, CA, 95501. Phone: (707) 443-5685. Providers update this record themselves, so call before visiting.
How can I verify Michael Bruce Mizoguchi, M.D.'s license?
NPPES lists California license number A70161, 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 Michael Bruce Mizoguchi, M.D. prescribe under Medicare Part D?
In 2024, Michael Bruce Mizoguchi, M.D. had 4,057 Medicare Part D claims for 711 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Michael Bruce Mizoguchi, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 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.