NANCY M OHAMA O.D.
NPI 1033276894
Optometrist in Fairfield, CA
About Nancy M Ohama O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY M OHAMA O.D. (NPI 1033276894) is an individual optometrist in Fairfield, California, licensed in California (6767T) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1979).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nancy M Ohama O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Nancy Ohama reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94533 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIRFIELD, CA 94533
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nancy Ohama's NPI number?
The NPI number for Nancy Ohama is 1033276894. It was assigned to this individual provider in the NPPES registry on January 2, 2007.
Where is Nancy Ohama located?
Nancy Ohama practices at 1550 Gateway Blvd, Fairfield, CA 94533. The listed phone number is (707) 427-4040.
What is Nancy Ohama's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Nancy Ohama enrolled in Medicare?
Yes. Nancy Ohama is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Nancy Ohama's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Ohama reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nancy Ohama's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Nancy Ohama was last updated on January 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Nancy M Ohama, O.D. · NPI 1033276894
Optometrist provider in Fairfield, California. Individual provider, active in the CMS NPPES registry since January 2, 2007.
## Identity
- **NPI:** 1033276894 (Entity type: Individual)
- **Enumerated:** January 2, 2007
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 6767T (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1550 GATEWAY BLVD, Fairfield, CA 94533-6901
- **Phone:** (707) 427-4040
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1979
## Record status
- **NPPES last updated:** January 3, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1033276894) · Data from the CMS NPPES public registry.