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DIANA CHEN OD
NPI 1962989863
Optometrist in Walnut Creek, CA

Active since July 24, 2018PECOS Enrolled
1855 SAN MIGUEL DR STE 28, WALNUT CREEK, CA 94596(925) 935-8820 Get Directions Write a Review

NPPES record last updated: September 28, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 28, 2020, Oct 15, 2018, Jul 24, 2018 (3 updates tracked since 2018).

About Diana Chen Od NPPES

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

DIANA CHEN OD (NPI 1962989863) is an individual optometrist in Walnut Creek, California, licensed in California (34271) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Houston, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1962989863
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDIANA CHENCredential: OD
Location Address1855 SAN MIGUEL DR STE 28Walnut Creek, CA 94596-5298
Mailing Address1855 San Miguel Dr Ste 28Walnut Creek, CA 94596-5298 · (925) 935-8820
Phone(925) 935-8820
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJuly 24, 2018
Last NPPES UpdateSeptember 28, 20203 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2020
✔ NPI 1962989863 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
Licenses✔ Licensed in CA · 34271✔ Licensed in TX · 9524TG
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1855 SAN MIGUEL DR STE 28, Walnut Creek, CA 94596
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Secondary Practice Location 1

Location 14901 Calhoun RdHouston, TX 77204-2020 · Phone (713) 743-2020 · Fax (713) 743-0963

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diana Chen Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4587917901
PECOS Enrollment IDI20230706003770
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WALNUT CREEK EYE MEDICAL GROUP, INC
Ophthalmology
1855 SAN MIGUEL DR STE 28
WALNUT CREEK, CA 94596
Contra Costa County (925) 935-8820
DR. LEVON DJENDEREDJIAN MD
Ophthalmology
1855 SAN MIGUEL DR STE 28
WALNUT CREEK, CA 94596
Contra Costa County (310) 940-3292

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 Diana Chen's NPI number?

The NPI number for Diana Chen is 1962989863. It was assigned to this individual provider in the NPPES registry on July 24, 2018.

Where is Diana Chen located?

Diana Chen practices at 1855 San Miguel Dr Ste 28, Walnut Creek, CA 94596. The listed phone number is (925) 935-8820.

What is Diana Chen's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Diana Chen enrolled in Medicare?

Yes. Diana Chen is registered in the Medicare PECOS enrollment system.

What insurance does Diana Chen accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Diana Chen 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 Diana Chen was last updated on September 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.