Nancy M. Ohama, O.D.
Optometrist · Fairfield, CA
Nancy M. Ohama, O.D. is an optometrist with a practice address in Fairfield, California, and NPI 1033276894, issued on Jan 2, 2007. Check the license (California 6767T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy M. Ohama
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 6767T CA
Self-reported in NPPES; status is on the state search - Practice location
- 1550 Gateway Blvd, Fairfield, CA 94533
- Phone
- (707) 427-4040
- Enumerated
- Jan 2, 2007
- Record last updated
- Jan 3, 2022
- Medicare enrollment
- Enrolled (PECOS I20120822000409); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1550 Gateway Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Syamala Aiyar, MDPediatrics Physician1760560593
- Ruthan Arca, RPHPharmacist1437680162
- Irwin Barr, MDInternal Medicine Physician1659450799
- Marissa Bartlett, MDPediatrics Physician1659443489
- Jaime Betters, R.D.Registered Dietitian1861559460
Verify Nancy M. Ohama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 6767TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average optometrist in 2024
35 Medicare Part D claims for 29 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Erythromycin16 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
- Permanente Medical Group IncVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy M. Ohama among 8,308 optometrist records in California
Nancy M. Ohama, 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
- Graduated1979 · 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 Fairfield → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Cinthia Chan, O.D.Fairfield, CA 945331962533273
- Michael Chin, O.D.Fairfield, CA 945331962569665
- Mark Christensen, O.D.Fairfield, CA 945331518038108
- Rozanne Fratto, O.D.Fairfield, CA 945331174688055
- Cory Hakanen, O.D.Fairfield, CA 945331265831564
- Arlene Huynh, O.D.Fairfield, CA 945331912254582
- David Meltzer, O.D.Fairfield, CA 945331952454712
- Malalai Mojaddidi, ODFairfield, CA 945331427146273
Common questions
What is Nancy M. Ohama, O.D.'s NPI number?
Nancy M. Ohama, O.D.'s National Provider Identifier (NPI) is 1033276894, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nancy M. Ohama, O.D. located?
The NPPES record lists a practice address at 1550 Gateway Blvd, Fairfield, CA, 94533. Phone: (707) 427-4040. Providers update this record themselves, so call before visiting.
How can I verify Nancy M. Ohama, O.D.'s license?
NPPES lists California license number 6767T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy M. Ohama, O.D. prescribe under Medicare Part D?
In 2024, Nancy M. Ohama, O.D. had 35 Medicare Part D claims for 29 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.