DR. ENCHI KRISTINA CHANG MD
NPI 1063005593
Ophthalmology in Boston, MA

Active since February 16, 2021PECOS EnrolledAccepts Medicare Assignment
243 CHARLES ST, BOSTON, MA 02114(617) 573-4443 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 9, 2025, Dec 14, 2021, Jul 15, 2021 and 1 more (4 updates tracked since 2021).

About Dr. Enchi Kristina Chang Md NPPES

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

DR. ENCHI KRISTINA CHANG MD (NPI 1063005593) is an individual ophthalmology provider in Boston, Massachusetts, licensed in Massachusetts (1022381) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Harvard Medical School (2021).

NPPES Registry Identity

NPI1063005593
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NameDR. ENCHI KRISTINA CHANGCredential: MD
Location Address243 CHARLES STBoston, MA 02114-3002
Mailing Address243 Charles StBoston, MA 02114-3002 · (617) 573-4443
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2021
Enumeration DateFebruary 16, 2021
Last NPPES UpdateJuly 9, 20254 updates tracked since enumeration
NPPES CertifiedJuly 9, 2025
NPI 1063005593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License Licensed in MA · 1022381
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.

243 CHARLES ST, Boston, MA 02114

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. Enchi Kristina Chang Md 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 ID2062812555
PECOS Enrollment IDI20250512003075
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.

Hospital Affiliations CMS Care Compare 4

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

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

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

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220100
Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County
Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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.

Other Providers at the Same Location NPPES 20

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

Audiologist
243 CHARLES ST, AUDIOLOGY DEPARTMENT
BOSTON, MA 02114
Student in an Organized Health Care Education/Training Program
243 CHARLES ST
BOSTON, MA 02114
Eyewear Supplier
243 CHARLES ST
BOSTON, MA 02114
Ophthalmology
243 CHARLES ST, 10TH FLOOR -- OPHTHALMIC PLASTIC SURGERY
BOSTON, MA 02114
Otolaryngology
243 CHARLES ST
BOSTON, MA 02114
Emergency Medicine
243 CHARLES ST
BOSTON, MA 02114
Social Worker (Clinical)
243 CHARLES ST
BOSTON, MA 02114
Anesthesiology
243 CHARLES ST
BOSTON, MA 02114

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 Enchi Chang's NPI number?

The NPI number for Enchi Chang is 1063005593. It was assigned to this individual provider in the NPPES registry on February 16, 2021.

Where is Enchi Chang located?

Enchi Chang practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 573-4443.

What is Enchi Chang's specialty?

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

Is Enchi Chang enrolled in Medicare?

Yes. Enchi 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 Enchi Chang accept?

Health plans from Anthem Blue Cross and Blue Shield list Enchi 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 Enchi Chang affiliated with any hospitals?

According to CMS data, Enchi Chang is affiliated with Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary -, South Shore Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Enchi Chang was last updated on July 9, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.