DR. HEATHER S. CHANG M.D.
NPI 1982898409
Ophthalmology in Arcadia, CA

Q: What is Heather Chang's NPI number?

The NPI number for Heather Chang is 1982898409. It was assigned to this individual provider in the NPPES registry on August 28, 2007.

Q: What is Heather Chang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Heather Chang was last updated on November 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 August 28, 2007PECOS EnrolledAccepts Medicare Assignment

96.4/100

CMS Quality Rating

234 S. FIRST AVE, SUITE 101, ARCADIA, CA 91006(626) 447-7008(626) 447-7009 Get Directions Write a Review

NPPES record last updated: November 16, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 16, 2018, Apr 24, 2017, Mar 27, 2017 (3 updates tracked since 2017).

On this page

About Dr. Heather S. Chang M.d. NPPES

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

DR. HEATHER S. CHANG M.D. (NPI 1982898409) is an individual ophthalmology provider in Arcadia, California, licensed in California (A103063) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2006).

NPPES Registry Identity

NPI1982898409

Entity TypeIndividualFemale

Primary Taxonomy207W00000X

Provider Legal NameDR. HEATHER S. CHANGCredential: M.D.

Location Address234 S. FIRST AVE, SUITE 101Arcadia, CA 91006

Mailing Address234 S. First Ave, Suite 101Arcadia, CA 91006 · (626) 447-7008 · Fax (626) 447-7009

Phone(626) 447-7008

Fax(626) 447-7009

Sole ProprietorNo

Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2006

Enumeration DateAugust 28, 2007

Last NPPES UpdateNovember 16, 20183 updates tracked since enumeration

✔ NPI 1982898409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

Licenses✔ Licensed in CA · A103063✔ Licensed in PA · MD448260

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.

Also ListedOphthalmology · Retina SpecialistTaxonomy 207WX0107X · License 287240 (NY), MD448260 (PA)

234 S. FIRST AVE, SUITE 101, Arcadia, CA 91006

Open in Google Maps ↗

Other Identifiers 2

OtherJ400367669NY · Medicare Ptan

Medicaid04679407NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Heather S. Chang M.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 ID345432779

PECOS Enrollment IDI20101004001330

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 Reassignments

Medicare enrollment records show Heather Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Peter Ho Win MD Inc

Same address

Ophthalmology

234 S 1ST AVE STE 101
Arcadia, CA 91006

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

NPI 1033350756 (626) 447-7008

Paul T Urrea M D M P H Inc

10 mi

Ophthalmology

4560 E CESAR E CHAVEZ AVE
Los Angeles, CA 90022

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

NPI 1619074838 (626) 289-7699

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

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.

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

811 services422 patients

Extended exam of the back part of the eye with retinal drawing 92201

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

463 services337 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

412 services129 patients

Compounded drug, not otherwise classified J7999

A compounded drug is a personalized medication created to meet unique patient needs. If you can't take standard drugs due to allergies or need a specific dosage not commercially available, a pharmacist can mix ingredients to make a drug specifically for you.

387 services125 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.

323 services129 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.

252 services204 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.

192 services75 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.

106 services97 patients

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.

102 services87 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.

73 services73 patients

Exam of retinal blood vessels using a special camera after injection of a dye 92235

This procedure, known as a fluorescein angiography, involves taking images of the back of your eye. A dye is injected into your arm that travels to your eye, highlighting the blood vessels in your retina. This helps identify any abnormalities.

43 services41 patients

2d ultrasound scan of eye tissue and structures 76512

A 2D ultrasound scan of eye tissue and structures is a non-invasive procedure that uses sound waves to create images of your eye. It helps doctors to examine your eye's internal structures, detect abnormalities, and plan for treatments if needed.

36 services32 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

36 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91006 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.

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.

96.4/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

76.65

Improvement Activities

Reported Quality Measures

Diabetes: Eye Exam

Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

100%93 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Heather Chang's NPI number?

The NPI number for Heather Chang is 1982898409. It was assigned to this individual provider in the NPPES registry on August 28, 2007.

Where is Heather Chang located?

Heather Chang practices at 234 S. First Ave, Suite 101, Arcadia, CA 91006. The listed phone number is (626) 447-7008.

What is Heather Chang's specialty?

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

Is Heather Chang enrolled in Medicare?

Yes. Heather 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.

Which organizations bill Medicare for Heather Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Heather Chang reassigns Medicare benefits to 2 organizations: Peter Ho Win MD Inc (Arcadia, CA) and Paul T Urrea M D M P H Inc (Los Angeles, CA). Each 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 Heather Chang'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 Heather Chang was last updated on November 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.