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Dr. Enchi Kristina Chang, MD
NPI1063005593PAC ID2062812555
- Part D claims, 2024
- 153
- Publications
- 14
- Hospital affiliations
- 4
- Industry payments
- $853
- Medical group
- 1
- Practice address
- 243 Charles Street, Boston, MA 02114
- Practice phone
- Call (617) 523-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Enchi Kristina Chang is an internist in Boston, Massachusetts
Dr. Chang practices at Massachusetts Eye and Ear in Boston, Massachusetts, part of Mass General Brigham.
Dr. Chang's NPI, 1063005593, was assigned on February 16, 2021. Dr. Chang graduated from Tufts University School Of Medicine in 2025. Dr. Chang's Massachusetts license number on file is 287588.
NPI and contact details
- NPI
- 1063005593NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062812555
- NPI enumeration date
- February 16, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 523-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Enchi Kristina Chang practices at Massachusetts Eye and Ear in Boston, Massachusetts
Dr. Chang's primary practice is Massachusetts Eye and Ear, at 243 Charles Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 523-7900.
- Massachusetts Eye and Ear243 Charles Street, Boston, MA 02114 · Suffolk CountyPhone(617) 523-7900
Source: Dmand AI Affiliation Data
Dr. Enchi Kristina Chang is affiliated with 4 sites of care and 1 medical group
Dr. Chang's primary practice is Massachusetts Eye and Ear in Boston, Massachusetts, part of Mass General Brigham. Dr. Chang is also affiliated with Massachusetts General Hospital. Dmand AI also links Dr. Chang to 2 more hospitals and 1 medical group, each named with a free account.
Massachusetts General Hospital2 hospitalsNames with a free account1 medical groupName with a free account
See all 5 affiliations for Dr. ChangSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Enchi Kristina Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts Eye and Ear | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Enchi Kristina Chang is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang has a license on file in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Chang
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Enchi Kristina Chang's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 71, with 49% women.
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women49%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Enchi Kristina Chang wrote 153 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 153 Medicare Part D claims for 66 patients. 74% of them were for generic drugs. CMS names the drug for 118 of them, across 6 drugs with 11 or more claims each, at $2,306 in total drug cost. In 2023, CMS named 57 claims across 2 drugs.
Part D claims, 2024153
Drugs named by CMS6
Total drug cost$2,306
Part D patients66
Dr. Chang's Part D claims by kind of drug, 2024
- Generic113 claims74%
- Brand-name40 claims26%
Dr. Chang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 572024: 118107%
Drugs named by CMS: 6 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Enchi Kristina Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Enchi Kristina Chang has 14 publications on record
Dmand AI links 14 papers to Dr. Chang, published from 2019 to 2025. 2021 was the busiest year, with 6. The most frequent topics are Glaucoma, Intraocular Pressure and Curriculum. Dr. Chang has published most often in Digit J Ophthalmol. Dr. Chang's most frequent co-authors are Ta Chen Peter Chang, MD, Carolina Altagracia Chiou, MD and Daniel Robert Lefebvre, MD.
Papers14
Years published2019 to 2025
Dr. Chang's papers by year, 2019 to 2025
Topics Dr. Chang writes about most
- Glaucoma
- Intraocular Pressure
- Curriculum
- Postoperative Complications
- Visual Acuity
Dr. Chang's most frequent co-authors
- Ta Chen Peter Chang, MD6 shared papers
- Carolina Altagracia Chiou, MD1 shared paper
- Daniel Robert Lefebvre, MD1 shared paper
Recent publications by Dr. Chang
Ophthalmic Plast Reconstr Surg
ExophthalmosGlomus TumorOrbit
Video-based surgical curriculum for open-globe injury repair, V: scleral wounds (opens in a new tab)
Digit J Ophthalmol
CurriculumEye Injuries
Digit J Ophthalmol
CurriculumEye Injuries, Penetrating
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Enchi Kristina Chang received $853 in industry payments from 2022 to 2025
CMS Open Payments shows 8 general payments to Dr. Chang from 6 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 88% of the total. Alcon Laboratories Inc paid the most, $286.
General payments to Dr. Chang by program year, 2022 to 2025
General payments to Dr. Chang by kind, 2022 to 2025
$853in total
- Food and beverage$75388%
- Education$10012%
Companies that paid Dr. Chang the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Enchi Kristina Chang graduated from Tufts University School Of Medicine
Dr. Chang graduated from Tufts University School Of Medicine in 2025.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Enchi Kristina Chang accepts plans from 2 insurance carriers
Dr. Chang is in network with 2 carriers, including Elevance and RI State Medicaid. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Elevance
- RI State Medicaid
Plan types Dr. Chang accepts, by number of carriers
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Enchi Kristina Chang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Enchi Kristina Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Enchi Kristina Chang's NPI number?
Dr. Enchi Kristina Chang's NPI number is 1063005593. It was assigned on February 16, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Enchi Kristina Chang?
Dr. Enchi Kristina Chang is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Enchi Kristina Chang practice?
Dr. Chang practices at 243 Charles Street, Boston, MA 02114. Dr. Chang's primary practice is Massachusetts Eye and Ear in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Chang to 2 hospitals and 1 medical group.
What is Dr. Enchi Kristina Chang's office phone number?
The practice phone on file for Dr. Chang is (617) 523-7900.
What is Dr. Enchi Kristina Chang's medical license number?
Dr. Chang's Massachusetts license number on file is 287588.
Which hospitals is Dr. Enchi Kristina Chang affiliated with?
Dr. Chang practices at Massachusetts Eye and Ear in Boston, Massachusetts. Dr. Chang is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Chang to 2 more hospitals.
Does Dr. Enchi Kristina Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Where did Dr. Enchi Kristina Chang go to medical school?
Dr. Chang graduated from Tufts University School Of Medicine in 2025.
What drugs does Dr. Enchi Kristina Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Prednisolone Acetate, Moxifloxacin and Erythromycin.
Has Dr. Enchi Kristina Chang received payments from drug or device companies?
CMS Open Payments shows $853 in general payments to Dr. Chang from 6 companies from 2022 to 2025. The largest total came from Alcon Laboratories Inc.
Show 4 more questionsShow fewer questions
How long has Dr. Enchi Kristina Chang been practicing?
Dr. Chang graduated from medical school in 2025, 1 years ago.
Does Dr. Enchi Kristina Chang do research?
Dmand AI links 14 publications to Dr. Chang, published from 2019 to 2025.
Who does Dr. Enchi Kristina Chang publish with?
Dr. Chang's most frequent co-authors are Ta Chen Peter Chang, MD (6 shared papers), Carolina Altagracia Chiou, MD (1 shared paper) and Daniel Robert Lefebvre, MD (1 shared paper).
What insurance does Dr. Enchi Kristina Chang accept?
Dr. Chang is in network with 2 carriers, including Elevance and RI State Medicaid. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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