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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DOROTHY BUI OD
NPI 1871348086
Optometrist in Gilbert, AZ

Active since April 22, 2024PECOS EnrolledAccepts Medicare Assignment
3303 S LINDSAY RD, GILBERT, AZ 85297(480) 292-9835(480) 292-9836 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Jul 2, 2024, Jun 12, 2024 and 1 more (4 updates tracked since 2024).

About Dorothy Bui Od NPPES

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

DOROTHY BUI OD (NPI 1871348086) is an individual optometrist in Gilbert, Arizona, licensed in Arizona (OPT-002785) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in Mesa, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1871348086
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDOROTHY BUICredential: OD
Location Address3303 S LINDSAY RDGilbert, AZ 85297-1503
Mailing Address3303 S Lindsay RdGilbert, AZ 85297-1503 · (480) 292-9835 · Fax (480) 292-9836
Phone(480) 292-9835
Fax(480) 292-9836
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateApril 22, 2024
Last NPPES UpdateSeptember 3, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1871348086 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 AZ · OPT-002785
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.
3303 S LINDSAY RD, Gilbert, AZ 85297
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Secondary Practice Location 1

Location 11919 E McKellips Rd Ste 103Mesa, AZ 85203-2855 · Phone (480) 844-2286 · Fax (480) 610-6641

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas 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 and accepts Medicare assignment

Dorothy Bui Od 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.

PECOS PAC ID3476057183
PECOS Enrollment IDI20250916004641
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 Reassignment

Medicare enrollment records show Dorothy Bui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Experts On Sight, LLC
Same address
Optometrist
3303 S LINDSAY RD, STE 101
Gilbert, AZ 85296
  • Reassigned Medicare billing, Arizona enrollment
  • 9 clinicians in this Medicare group
NPI 1689623837 (480) 292-9835

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 85297 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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 18

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

THE CLINICAL INFUSION CENTER
Specialist
3303 S LINDSAY RD, SUITE 123
GILBERT, AZ 85297
Maricopa County (480) 821-9939
CAITLYN LANEY CPM LM
Midwife
3303 S LINDSAY RD
GILBERT, AZ 85297
Maricopa County (480) 664-7463
EXPERTS ON SIGHT
Optometrist
3303 S LINDSAY RD
GILBERT, AZ 85297
Maricopa County (480) 292-9835
KARLA MALDONADO
Specialist/Technologist, Other
3303 S LINDSAY RD
GILBERT, AZ 85297
Maricopa County (773) 474-1897
HANNAH MEDICAL INSTITUTE LLC
Specialist
3303 S LINDSAY RD, STE 123
GILBERT, AZ 85297
Maricopa County (480) 821-9339
ABRAHAM OWUSU-DOMMEY LLC
Specialist
3303 S LINDSAY RD, STE 123
GILBERT, AZ 85297
Maricopa County (480) 821-9339
KAN YU MD,PHD
Psychiatry & Neurology (Neurology)
3303 S LINDSAY RD, SUITE 118
GILBERT, AZ 85297
Maricopa County (480) 899-2212
DR. ABRAHAM OWUSU DOMMEY MD
Internal Medicine
3303 S LINDSAY RD, STE 123
GILBERT, AZ 85297
Maricopa County (480) 821-9339

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 Dorothy Bui's NPI number?

The NPI number for Dorothy Bui is 1871348086. It was assigned to this individual provider in the NPPES registry on April 22, 2024.

Where is Dorothy Bui located?

Dorothy Bui practices at 3303 S Lindsay Rd, Gilbert, AZ 85297. The listed phone number is (480) 292-9835.

What is Dorothy Bui's specialty?

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

Is Dorothy Bui enrolled in Medicare?

Yes. Dorothy Bui 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 organization bills Medicare for Dorothy Bui's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dorothy Bui reassigns Medicare benefits to Experts On Sight, LLC (Gilbert, AZ). The 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 Dorothy Bui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dorothy Bui accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Oscar Health Insurance and 6 other insurers list Dorothy Bui 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 Dorothy Bui was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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.