SYLVIA LOU CHANG
NPI 1053843458
Ophthalmology in Rancho Cucamonga, CA

Active since April 03, 2017PECOS EnrolledAccepts Medicare Assignment
90.08/100
CMS Quality Rating
9170 HAVEN AVE STE 102, RANCHO CUCAMONGA, CA 91730(909) 440-1014(909) 440-1015 Get Directions Write a Review

NPPES record last updated: June 13, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 13, 2024, Oct 11, 2023, Sep 7, 2021 (3 updates tracked since 2021).

About Sylvia Lou Chang NPPES

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

SYLVIA LOU CHANG (NPI 1053843458) is an individual ophthalmology provider in Rancho Cucamonga, California, licensed in California (A187821) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Wright State University Boonshoft School Of Medicine (2017).

NPPES Registry Identity

NPI1053843458
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NameSYLVIA LOU CHANG
Location Address9170 HAVEN AVE STE 102Rancho Cucamonga, CA 91730-5416
Mailing Address14726 Ramona Ave Ste 203Chino, CA 91710-5730 · (626) 305-9100 · Fax (626) 305-0152
Fax(909) 440-1015
Sole ProprietorNo
Medical School CMSWright State University Boonshoft School Of MedicineGraduated 2017
Enumeration DateApril 3, 2017
Last NPPES UpdateJune 13, 20243 updates tracked since enumeration
NPPES CertifiedJune 13, 2024
NPI 1053843458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses Licensed in CA · A187821 Licensed in NV · 21409
Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

9170 HAVEN AVE STE 102, Rancho Cucamonga, CA 91730

Other Names 1

Former Name (1)Lou Zhang M.d.

Secondary Practice Locations 2

Location 1150 S Grand Ave Ste JGlendora, CA 91741-4716 · Phone (626) 335-2114 · Fax (626) 963-6497
Location 2207 S Santa Anita St Ste P25San Gabriel, CA 91776-1145 · Phone (626) 200-1277 · Fax (626) 200-1278

Accepted 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

Sylvia Lou Chang 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 ID840696860
PECOS Enrollment IDI20231010002001
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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
37 services35 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.
30 services28 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91730 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

90.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40
Cost66.96

Other Providers at the Same Location NPPES 5

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

Optometrist
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 91730
Optometrist
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 91730
Optometrist
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 91730
Optometrist
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 91730
Optometrist
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 91730

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 Sylvia Chang's NPI number?

The NPI number for Sylvia Chang is 1053843458. It was assigned to this individual provider in the NPPES registry on April 3, 2017. The provider is also known as Lou Zhang M.D..

Where is Sylvia Chang located?

Sylvia Chang practices at 9170 Haven Ave Ste 102, Rancho Cucamonga, CA 91730. The listed phone number is (909) 440-1014.

What is Sylvia Chang's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Sylvia Chang enrolled in Medicare?

Yes. Sylvia Chang 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 Sylvia Chang accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Sylvia Chang 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 Sylvia Chang was last updated on June 13, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.