ESTELLA BOWLSBY
NPI 1508296633
Optometrist in Antioch, CA
About Estella Bowlsby NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ESTELLA BOWLSBY (NPI 1508296633) is an individual optometrist in Antioch, California, licensed in California (OPT 14723 TLG) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS and is a graduate of University Of California - School Of Optometry (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Estella Bowlsby 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 Reassignments
2Medicare enrollment records show Estella Bowlsby reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Antioch, CA 94531
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Oakland, CA 94610
- Reassigned Medicare billing, California enrollment
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 94531 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Estella Bowlsby's NPI number?
The NPI number for Estella Bowlsby is 1508296633. It was assigned to this individual provider in the NPPES registry on November 27, 2013.
Where is Estella Bowlsby located?
Estella Bowlsby practices at 5163 Lone Tree Way, Antioch, CA 94531. The listed phone number is (925) 757-5560.
What is Estella Bowlsby's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Estella Bowlsby enrolled in Medicare?
Yes. Estella Bowlsby 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 organizations bill Medicare for Estella Bowlsby's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Estella Bowlsby reassigns Medicare benefits to 2 organizations: Winson Ong Od (Antioch, CA) and (Oakland, CA). Each 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 Estella Bowlsby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Estella Bowlsby accept?
Health plans from Providence Health Plan list Estella Bowlsby as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Estella Bowlsby was last updated on December 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Estella Bowlsby · NPI 1508296633
Optometrist provider in Antioch, California. Individual provider, active in the CMS NPPES registry since November 27, 2013.
## Identity
- **NPI:** 1508296633 (Entity type: Individual)
- **Enumerated:** November 27, 2013
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OPT 14723 TLG (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5163 LONE TREE WAY, Antioch, CA 94531-8689
- **Phone:** (925) 757-5560
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Winson Ong Od (NPI 1770130932, Antioch, CA); (NPI 1942228929, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California - School Of Optometry, class of 2013
## Record status
- **NPPES last updated:** December 28, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1508296633) · Data from the CMS NPPES public registry.