TINA MARIE CHOU M.D.
NPI 1336250117
Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist in Walnut Creek, CA
About Tina Marie Chou M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TINA MARIE CHOU M.D. (NPI 1336250117) is an individual pediatric ophthalmology and strabismus specialist in Walnut Creek, California, licensed in California (G80418) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tina Marie Chou M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Tina Chou reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94596
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 94596 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Tina Chou's NPI number?
The NPI number for Tina Chou is 1336250117. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is Tina Chou located?
Tina Chou practices at 1299 Newell Hill Pl Suite 103, Walnut Creek, CA 94596. The listed phone number is (925) 947-0505.
What is Tina Chou's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Pediatric Ophthalmology and Strabismus Specialist, with taxonomy code 207WX0110X.
Is Tina Chou enrolled in Medicare?
Yes. Tina Chou is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Tina Chou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tina Chou reassigns Medicare benefits to 5 organizations: Steven A Harrison MD A Professional Corporation (Walnut Creek, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Tina Chou'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 Tina Chou was last updated on April 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Tina Marie Chou, M.D. · NPI 1336250117
Pediatric Ophthalmology and Strabismus Specialist physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since August 31, 2006.
## Identity
- **NPI:** 1336250117 (Entity type: Individual)
- **Enumerated:** August 31, 2006
- **Primary specialty:** Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist · taxonomy 207WX0110X
- **State license:** G80418 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1299 NEWELL HILL PL, SUITE 103, Walnut Creek, CA 94596-5292
- **Phone:** (925) 947-0505
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Steven A Harrison MD A Professional Corporation (NPI 1649296385, Walnut Creek, CA); John Muir Trauma Physicians Billing Service (NPI 1093864837, Walnut Creek, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 28, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1336250117) · Data from the CMS NPPES public registry.