DR. LILLY CHANG OD
NPI 1619521259
Optometrist in Sonoma, CA

Active since July 31, 2019PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
201 W NAPA ST STE 3, SONOMA, CA 95476(707) 938-3937 Get Directions Write a Review

NPPES record last updated: October 27, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 27, 2020, Nov 19, 2019, Jul 31, 2019 (3 updates tracked since 2019).

About Dr. Lilly Chang Od NPPES

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

DR. LILLY CHANG OD (NPI 1619521259) is an individual optometrist in Sonoma, California, licensed in California (34315TLG) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and is a graduate of New England College Of Optometry (2019).

NPPES Registry Identity

NPI1619521259
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. LILLY CHANGCredential: OD
Location Address201 W NAPA ST STE 3Sonoma, CA 95476-6621
Mailing Address201 W Napa St Ste 3Sonoma, CA 95476-6621
Sole ProprietorNo
Medical School CMSNew England College Of OptometryGraduated 2019
Enumeration DateJuly 31, 2019
Last NPPES UpdateOctober 27, 20203 updates tracked since enumeration
NPPES CertifiedOctober 27, 2020
NPI 1619521259 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 · 34315TLG
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.

201 W NAPA ST STE 3, Sonoma, CA 95476

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

Dr. Lilly Chang Od 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 ID9234469321
PECOS Enrollment IDI20191003000620
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.

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.
1,359 services1,357 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.
1,298 services1,298 patients
Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
459 services442 patients
New patient problem focused exam of visual system 92002
A new patient problem-focused exam of the visual system is a basic evaluation of your eyes and vision. It includes checking your eye movements, visual acuity, and general eye health. It helps detect any potential issues early for timely treatment.
202 services202 patients
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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95476 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
$142.00 typical visit price
range $63.04 – $187.01
Typical copayment $35.50 (range $15.76 – $46.75)
Most-billed visit code 99204
Established Patient
$77.94 typical visit price
range $21.02 – $153.40
Typical copayment $19.48 (range $5.25 – $38.35)
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Other Providers at the Same Location NPPES

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

Optometrist
201 W NAPA ST STE 3
SONOMA, CA 95476

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 Lilly Chang's NPI number?

The NPI number for Lilly Chang is 1619521259. It was assigned to this individual provider in the NPPES registry on July 31, 2019.

Where is Lilly Chang located?

Lilly Chang practices at 201 W Napa St Ste 3, Sonoma, CA 95476. The listed phone number is (707) 938-3937.

What is Lilly Chang's specialty?

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

Is Lilly Chang enrolled in Medicare?

Yes. Lilly 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 Lilly Chang 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 and Providence Health Plan list Lilly 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 Lilly Chang was last updated on October 27, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.