DR. EILEEN I-CHUN CHENG O.D.
NPI 1215907076
Optometrist in Pleasant Hill, CA

Q: What is Eileen Cheng's NPI number?

The NPI number for Eileen Cheng is 1215907076. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Q: What is Eileen Cheng'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 Eileen Cheng was last updated on February 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 January 25, 2006PECOS Enrolled

401 GREGORY LN, SUITE 110, PLEASANT HILL, CA 94523(925) 687-7638(925) 687-3079 Get Directions Write a Review

NPPES record last updated: February 7, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Eileen I-chun Cheng O.d. NPPES

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

DR. EILEEN I-CHUN CHENG O.D. (NPI 1215907076) is an individual optometrist in Pleasant Hill, California, licensed in California (10846T) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1215907076

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDR. EILEEN I-CHUN CHENGCredential: O.D.

Location Address401 GREGORY LN, SUITE 110Pleasant Hill, CA 94523-2800

Mailing Address401 Gregory Ln, Suite 110Pleasant Hill, CA 94523-2800 · (925) 687-7638 · Fax (925) 687-3079

Phone(925) 687-7638

Fax(925) 687-3079

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateJanuary 25, 2006

Last NPPES UpdateFebruary 7, 2008

✔ NPI 1215907076 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 · 10846T

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.

401 GREGORY LN, Pleasant Hill, CA 94523

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Other Identifiers 2

Medicare UPINU81884CA

Medicare ID-Type UnspecifiedSD0108461CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.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. Eileen I-chun Cheng O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345262614

PECOS Enrollment IDI20051229000812

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 Eileen Cheng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Looking Glass Optometry Inc

Same address

Optometrist

401 GREGORY LN, SUITE 110
Pleasant Hill, CA 94523

Reassigned Medicare billing, California enrollment
2 clinicians in this Medicare group

NPI 1366416596 (925) 687-7638

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 94523 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 18

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

KENNETH JOSEPH FRAGA DDS

Dentist (General Practice)

401 GREGORY LN, #222
PLEASANT HILL, CA 94523

Contra Costa County (925) 687-0343

DR. RAVINDER S HUNDAL M.D.

Family Medicine

401 GREGORY LN, SUITE 104
PLEASANT HILL, CA 94523

Contra Costa County (925) 682-2401

DR. KEVIN T DOWD DDS

Dentist (General Practice)

401 GREGORY LN, SUITE #112
PLEASANT HILL, CA 94523

Contra Costa County (925) 680-6700

BAY AREA SURGICAL ASSOCIATES, INC

Surgery

401 GREGORY LN, STE 204
PLEASANT HILL, CA 94523

Contra Costa County (925) 798-4606

DR. YEN THI VU DDS

Dentist (General Practice)

401 GREGORY LN, SUITE # 226
PLEASANT HILL, CA 94523

Contra Costa County (925) 689-4404

DR. JEAN YOUNG-YUM KIM D.D.S.

Dentist

401 GREGORY LN
PLEASANT HILL, CA 94523

Contra Costa County (925) 689-1020

DR. KEVIN JUE DONG O.D.

Optometrist

401 GREGORY LN, SUITE 110
PLEASANT HILL, CA 94523

Contra Costa County (925) 687-7638

LOOKING GLASS OPTOMETRY INC

Optometrist

401 GREGORY LN, SUITE 110
PLEASANT HILL, CA 94523

Contra Costa County (925) 687-7638

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 Eileen Cheng's NPI number?

The NPI number for Eileen Cheng is 1215907076. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Where is Eileen Cheng located?

Eileen Cheng practices at 401 Gregory Ln Suite 110, Pleasant Hill, CA 94523. The listed phone number is (925) 687-7638.

What is Eileen Cheng's specialty?

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

Is Eileen Cheng enrolled in Medicare?

Yes. Eileen Cheng is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eileen Cheng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Cheng reassigns Medicare benefits to Looking Glass Optometry Inc (Pleasant Hill, 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 Eileen Cheng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eileen Cheng accept?

Health plans from Providence Health Plan list Eileen Cheng 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 Eileen Cheng was last updated on February 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.