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MAI NGOC QUINTANA
NPI 1871535617
Optometrist in Mountain View, CA

Active since June 12, 2006PECOS EnrolledAccepts Medicare Assignment
419 N SHORELINE BLVD, MOUNTAIN VIEW, CA 94043(650) 967-5789(650) 967-4106 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 11, 2022, Jul 9, 2018 (2 updates tracked since 2018).

About Mai Ngoc Quintana NPPES

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

MAI NGOC QUINTANA (NPI 1871535617) is an individual optometrist in Mountain View, California, licensed in California (12693TLG) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Clara, and is a graduate of Illinois College Of Optometry At Chicago (2004).

NPPES Registry Identity

NPI1871535617
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameMAI NGOC QUINTANA
Location Address419 N SHORELINE BLVDMountain View, CA 94043-4605
Mailing Address1007 S Daniel WaySan Jose, CA 95128-3124 · (408) 569-9971
Phone(650) 967-5789
Fax(650) 967-4106
Sole ProprietorNo
Medical School CMSIllinois College Of Optometry At ChicagoGraduated 2004
Enumeration DateJune 12, 2006
Last NPPES UpdateJanuary 11, 20222 updates tracked since enumeration
✔ NPI 1871535617 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 · 12693TLG✔ Licensed in CA · 12693T
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.
419 N SHORELINE BLVD, Mountain View, CA 94043
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Other Names 1

Other Name (5)Mai Ngoc Nguyen Od

Secondary Practice Location 1

Location 1710 Lawrence Expy Dept 486Santa Clara, CA 95051-5173 · Phone (408) 554-9830

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

Mai Ngoc Quintana 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 ID1658321062
PECOS Enrollment IDI20050124000863
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 Mai Quintana reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cindy H. Tran, Od, A Professional Optometric Corporation
4.0 mi
Optometrist
596 E EL CAMINO REAL, SUITE 2
Sunnyvale, CA 94087
  • Reassigned Medicare billing, California enrollment
  • 12 clinicians in this Medicare group
NPI 1730510165 (408) 245-6212
Permanente Medical Group Inc
6.4 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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 94043 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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

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

JENIFER E L WEBB OD, INC.
Optometrist
419 N SHORELINE BLVD
MOUNTAIN VIEW, CA 94043
Santa Clara County (652) 096-7578

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 Mai Quintana's NPI number?

The NPI number for Mai Quintana is 1871535617. It was assigned to this individual provider in the NPPES registry on June 12, 2006. The provider is also known as Mai Ngoc Nguyen Od.

Where is Mai Quintana located?

Mai Quintana practices at 419 N Shoreline Blvd, Mountain View, CA 94043. The listed phone number is (650) 967-5789.

What is Mai Quintana's specialty?

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

Is Mai Quintana enrolled in Medicare?

Yes. Mai Quintana 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 organizations bill Medicare for Mai Quintana's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mai Quintana reassigns Medicare benefits to 2 organizations: Cindy H. Tran, Od, A Professional Optometric Corporation (Sunnyvale, CA) and Permanente Medical Group Inc (Santa Clara, 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 Mai Quintana'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 Mai Quintana was last updated on January 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.