MICHAEL A. CHANG M.D.
NPI 1366438624
Ophthalmology in Lexington, MA

Q: What is Michael Chang's NPI number?

The NPI number for Michael Chang is 1366438624. It was assigned to this individual provider in the NPPES registry on September 22, 2005.

Q: What is Michael 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 Michael Chang was last updated on August 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 September 22, 2005PECOS EnrolledAccepts Medicare Assignment

110 HARTWELL AVE STE 201, LEXINGTON, MA 02421(781) 890-1023 Get Directions Write a Review

NPPES record last updated: August 14, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 14, 2023, Feb 1, 2022, May 8, 2020 and 1 more (4 updates tracked since 2018).

On this page

About Michael A. Chang M.d. NPPES

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

MICHAEL A. CHANG M.D. (NPI 1366438624) is an individual ophthalmology provider in Lexington, Massachusetts, licensed in Massachusetts (59606) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and is a graduate of Harvard Medical School (1984).

NPPES Registry Identity

NPI1366438624

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameMICHAEL A. CHANGCredential: M.D.

Location Address110 HARTWELL AVE STE 201Lexington, MA 02421-3118

Mailing Address110 Hartwell Ave Ste 201Lexington, MA 02421-3118 · (781) 890-1023

Phone(781) 890-1023

Sole ProprietorNo

Medical School CMSHarvard Medical SchoolGraduated 1984

Enumeration DateSeptember 22, 2005

Last NPPES UpdateAugust 14, 20234 updates tracked since enumeration

NPPES CertifiedAugust 14, 2023

✔ NPI 1366438624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in MA · 59606

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.

110 HARTWELL AVE STE 201, Lexington, MA 02421

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma 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

Michael A. 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 ID5597679977

PECOS Enrollment IDI20050407000363

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 8

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.

362 services341 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

349 services326 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).

309 services282 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.

264 services164 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.

188 services188 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.

82 services82 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA

OwnershipVoluntary non-profit - Private

CMS Certification Number220075

Location243 Charles StreetBoston, MA 02114 · Suffolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02421 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

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.

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 Michael Chang's NPI number?

The NPI number for Michael Chang is 1366438624. It was assigned to this individual provider in the NPPES registry on September 22, 2005.

Where is Michael Chang located?

Michael Chang practices at 110 Hartwell Ave Ste 201, Lexington, MA 02421. The listed phone number is (781) 890-1023.

What is Michael Chang's specialty?

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

Is Michael Chang enrolled in Medicare?

Yes. Michael 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 Michael Chang accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Michael 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.

Is Michael Chang affiliated with any hospitals?

According to CMS data, Michael Chang is affiliated with Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Michael Chang was last updated on August 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.