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BAY AREA RETINA ASSOCIATES
NPI 1174557805
Ophthalmology - Retina Specialist in Walnut Creek, CA

Active since July 10, 2006CLIA 05D1069402 · Waiver
365 LENNON LN STE 250, WALNUT CREEK, CA 94598(925) 943-6800(925) 943-6880 Get Directions Write a Review

NPPES record last updated: December 2, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 2, 2025, Apr 29, 2021, Apr 23, 2021 and 1 more (4 updates tracked since 2019).

About Bay Area Retina Associates NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BAY AREA RETINA ASSOCIATES (NPI 1174557805) is a healthcare organization registered as a retina specialist in Walnut Creek, California and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through January 8, 2028 and lists Tushar Ranchod, Partner, as its authorized official.

NPPES Registry Identity

NPI1174557805
Entity TypeOrganization
Primary Taxonomy207WX0107X
Legal Business NameBAY AREA RETINA ASSOCIATES
Location Address365 LENNON LN STE 250Walnut Creek, CA 94598-5915
Mailing Address365 Lennon Ln Ste 250Walnut Creek, CA 94598-5915 · (925) 943-6800 · Fax (925) 943-6880
Phone(925) 943-6800
Fax(925) 943-6880
Organization SubpartNo
Authorized OfficialTushar RanchodPartner · (925) 943-6800
Enumeration DateJuly 10, 2006
Last NPPES UpdateDecember 2, 20254 updates tracked since enumeration
NPPES CertifiedDecember 2, 2025
✔ NPI 1174557805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0107X
Definition
An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.
365 LENNON LN STE 250, Walnut Creek, CA 94598
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Other Identifiers 2

MedicaidGR0030671CA
MedicaidGR0030670CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bay Area Retina Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

9

Medicare enrollment records show 9 clinicians reassign Medicare billing to Bay Area Retina Associates, which bills Medicare for the services they deliver. Of these, 6 practice at this address. They are listed nearest first.

Clinicians, nearest first (9)

Flavius Beca
Ophthalmology
NPI 1659909620
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Roger Goldberg, MD
Ophthalmology
NPI 1184866584
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Caesar Luo, M.D.
Ophthalmology
NPI 1669684072
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Elizabeth Marlow Lehrburger, M.D.
Ophthalmology
NPI 1336568815
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Tushar Ranchod, MD
Ophthalmology
NPI 1316003304
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Subhransu Ray, M.D., PH.D.
Ophthalmology
NPI 1578597878
365 LENNON LN STE 250
Walnut Creek, CA 94598
(925) 943-6800
✔ PECOS✔ Accepts MedicareSame address
Tuow Ting, M.D.,PH.D.
Ophthalmology
NPI 1043244437
491 30TH ST STE 102
Oakland, CA 94609
(510) 832-6554
✔ PECOS✔ Accepts Medicare15 mi
Christianne Wa, MD
Ophthalmology
NPI 1073908976
1460 N CAMINO ALTO STE 206
Vallejo, CA 94589
(800) 573-8462
✔ PECOS✔ Accepts Medicare18 mi
Yingna Liu, MD
Ophthalmology
NPI 1932631462
2160 W GRANT LINE RD STE 240
Tracy, CA 95377
(800) 573-8462
✔ PECOS✔ Accepts Medicare34 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D1069402

Bay Area Retina Associates · Walnut Creek, CA
Active · expires Jan 8, 2028
CLIA Number05D1069402
Laboratory TypePhysician Office
Certificate Effective DateJanuary 9, 2026
Certificate Expiration DateJanuary 8, 2028
Laboratory DirectorStewart A. Daniels
Laboratory Phone(925) 943-6800
Laboratory LocationBay Area Retina Associates365 Lennon Lane, Ste 250, Walnut Creek, CA 94598
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Bay Area Retina Associates's NPI number?

The NPI number for Bay Area Retina Associates is 1174557805. It was assigned to this organization in the NPPES registry on July 10, 2006.

Where is Bay Area Retina Associates located?

Bay Area Retina Associates is located at 365 Lennon Ln Ste 250, Walnut Creek, CA 94598. The listed phone number is (925) 943-6800.

What is Bay Area Retina Associates's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Bay Area Retina Associates enrolled in Medicare?

Yes. Bay Area Retina Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Bay Area Retina Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians, all in Ophthalmology, reassign their Medicare billing to Bay Area Retina Associates. A 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 the clinician's services. Of these, 6 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Bay Area Retina Associates hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1069402) is associated with this NPI, valid through January 8, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Bay Area Retina Associates was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.