DR. CHI KIEN NGO O.D.
NPI 1174659973
Optometrist in Pleasanton, CA

Q: What is Chi Ngo's NPI number?

The NPI number for Chi Ngo is 1174659973. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Q: What is Chi Ngo's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Chi Ngo was last updated on December 30, 2021. 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.

Active since February 26, 2007PECOS Enrolled

4501 ROSEWOOD DR, PLEASANTON, CA 94588(925) 225-9036 Get Directions Write a Review

NPPES record last updated: December 30, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Chi Kien Ngo O.d. NPPES

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

DR. CHI KIEN NGO O.D. (NPI 1174659973) is an individual optometrist in Pleasanton, California, licensed in California (OPT12625T) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174659973

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. CHI KIEN NGOCredential: O.D.

Location Address4501 ROSEWOOD DRPleasanton, CA 94588-3051

Mailing Address186 Schooner CtRichmond, CA 94804-7413

Phone(925) 225-9036

Sole ProprietorNo

Enumeration DateFebruary 26, 2007

Last NPPES UpdateDecember 30, 2021

✔ NPI 1174659973 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 · OPT12625T

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.

4501 ROSEWOOD DR, Pleasanton, CA 94588

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Chi Kien Ngo O.d. 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 Reassignment

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

Permanente Medical Group Inc

23 mi

Internal Medicine

1190 VETERANS BLVD
Redwood City, CA 94063

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1639252604 (650) 299-2000

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 94588 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 9

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

WALMART INC.

Pharmacy (Community/Retail Pharmacy)

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 734-9024

JENNIFER DELFANTE PHARM. D.

Pharmacist

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 734-9024

RUIYU WANG PHARM D

Pharmacist

4501 ROSEWOOD DR, WALMART PHARMACY
PLEASANTON, CA 94588

Alameda County (925) 734-9024

NATIONAL VISION, INC.

Eyewear Supplier

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 225-4001

QUINN CHANG

Pharmacist

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 734-9024

DR. STEVEN H HONG O.D.

Optometrist

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 225-9036

DR. KAI CHUNG ANDERSON LAU PHARM.D.

Pharmacist

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 734-9024

WALMART, INC.

Technician/Technologist (Optician)

4501 ROSEWOOD DR
PLEASANTON, CA 94588

Alameda County (925) 225-4001

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 Chi Ngo's NPI number?

The NPI number for Chi Ngo is 1174659973. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Where is Chi Ngo located?

Chi Ngo practices at 4501 Rosewood Dr, Pleasanton, CA 94588. The listed phone number is (925) 225-9036.

What is Chi Ngo's specialty?

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

Is Chi Ngo enrolled in Medicare?

Yes. Chi Ngo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Chi Ngo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chi Ngo reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). 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 Chi Ngo'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 Chi Ngo was last updated on December 30, 2021. 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.