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DR. KAREN H CHAO O.D.
NPI 1013953108
Optometrist in San Gabriel, CA

Active since June 20, 2006PECOS EnrolledAccepts Medicare Assignment
121 S DEL MAR AVE, SUITE A, SAN GABRIEL, CA 91776(626) 287-0401(626) 287-1457 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Karen H Chao O.d. NPPES

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

DR. KAREN H CHAO O.D. (NPI 1013953108) is an individual optometrist in San Gabriel, California, licensed in California (OPT 10301 TPA) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (1994).

NPPES Registry Identity

NPI1013953108
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. KAREN H CHAOCredential: O.D.
Location Address121 S DEL MAR AVE, SUITE ASan Gabriel, CA 91776-1345
Mailing Address121 S Del Mar Ave, Suite ASan Gabriel, CA 91776-1345 · (626) 287-0401 · Fax (626) 287-1457
Phone(626) 287-0401
Fax(626) 287-1457
Sole ProprietorNo
Medical School CMSSouthern California College Of OptometryGraduated 1994
Enumeration DateJune 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1013953108 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 · OPT 10301 TPA
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.
121 S DEL MAR AVE, San Gabriel, CA 91776
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Other Identifiers 3

Medicare ID-Type UnspecifiedOP10301CA
MedicaidSD0103010CA
Medicare UPINU60101CA

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karen H Chao O.d. 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 ID9234285933
PECOS Enrollment IDI20090922000492
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
141 services115 patients
Exam of visual field with intermediate testing 92082
An exam of the visual field with intermediate testing is a procedure that checks your peripheral (side) vision. It helps to identify blind spots which could be a sign of eye diseases. This non-invasive test is painless and quick.
112 services109 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
79 services79 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
47 services43 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
33 services33 patients

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

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

KAREN H. CHAO, O.D., INC.
Optometrist
121 S DEL MAR AVE, SUITE A
SAN GABRIEL, CA 91776
Los Angeles County (626) 287-0401

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 Karen Chao's NPI number?

The NPI number for Karen Chao is 1013953108. It was assigned to this individual provider in the NPPES registry on June 20, 2006.

Where is Karen Chao located?

Karen Chao practices at 121 S Del Mar Ave Suite A, San Gabriel, CA 91776. The listed phone number is (626) 287-0401.

What is Karen Chao's specialty?

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

Is Karen Chao enrolled in Medicare?

Yes. Karen Chao 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.

What insurance does Karen Chao accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, BlueCross BlueShield of Tennessee and Providence Health Plan list Karen Chao 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 Karen Chao was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.