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DR. CRYSTAL DINH OD
NPI 1629544044
Optometrist in San Gabriel, CA

Active since October 23, 2018PECOS Enrolled
140 W VALLEY BLVD STE 115, SAN GABRIEL, CA 91776(626) 288-8023 Get Directions Write a Review

NPPES record last updated: July 29, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 29, 2019, Jul 27, 2019, Oct 23, 2018 (3 updates tracked since 2018).

About Dr. Crystal Dinh Od NPPES

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

DR. CRYSTAL DINH OD (NPI 1629544044) is an individual optometrist in San Gabriel, California, licensed in California (34115TLG) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Temple City.

NPPES Registry Identity

NPI1629544044
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. CRYSTAL DINHCredential: OD
Location Address140 W VALLEY BLVD STE 115San Gabriel, CA 91776-3784
Mailing Address140 W Valley Blvd Ste 115San Gabriel, CA 91776-3784 · (626) 288-8023
Phone(626) 288-8023
Sole ProprietorNo
Enumeration DateOctober 23, 2018
Last NPPES UpdateJuly 29, 20193 updates tracked since enumeration
✔ NPI 1629544044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 34115TLG
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.
140 W VALLEY BLVD STE 115, San Gabriel, CA 91776
Open in Google Maps ↗

Secondary Practice Location 1

Location 19555 Flaherty StTemple City, CA 91780-1644 · Phone (408) 391-3020

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Crystal Dinh Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Crystal Dinh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Golden San Gabriel Optometric Vision Center
Same address
Optometrist
140 W VALLEY BLVD, #115
San Gabriel, CA 91776
  • Reassigned Medicare billing, California enrollment
  • 18 clinicians in this Medicare group
NPI 1740216936 (626) 288-8023
Total Vision PC
94 mi
Optometrist
11717 BERNARDO PLAZA CT STE 105
San Diego, CA 92128
  • Reassigned Medicare billing, California enrollment
  • 236 clinicians in this Medicare group
NPI 1356813711 (858) 487-5555

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 91776 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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 6

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

GRACE HUYNH OD
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 288-8023
PING YE OD
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 288-8023
DR. JIA LAO O.D.
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 288-8023
DR. JENNIFER MEI-YIN CHEN O.D.
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 288-8023
DR. CINDY YI-FEN CHOU O.D.
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 910-5121
ERIC LEUNG
Optometrist
140 W VALLEY BLVD STE 115
SAN GABRIEL, CA 91776
Los Angeles County (626) 288-8023

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 Crystal Dinh's NPI number?

The NPI number for Crystal Dinh is 1629544044. It was assigned to this individual provider in the NPPES registry on October 23, 2018.

Where is Crystal Dinh located?

Crystal Dinh practices at 140 W Valley Blvd Ste 115, San Gabriel, CA 91776. The listed phone number is (626) 288-8023.

What is Crystal Dinh's specialty?

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

Is Crystal Dinh enrolled in Medicare?

Yes. Crystal Dinh is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Crystal Dinh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Crystal Dinh reassigns Medicare benefits to 2 organizations: Golden San Gabriel Optometric Vision Center (San Gabriel, CA) and Total Vision PC (San Diego, 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 Crystal Dinh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Crystal Dinh accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Crystal Dinh 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 Crystal Dinh was last updated on July 29, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.