Dr. Edward J. Chang, MD
- Medicare services, 2024
- 3,304
- Medicare patients, 2024
- 1,183
- Part D claims, 2024
- 11,308
- MIPS score, 2024
- 92
- Hospital affiliations
- 2
- Practice address
- 107 Gamma Drive, Pittsburgh, PA 15238
- Practice phone
- Call (412) 963-7917
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gamma Surgery Center
Surgery Center - Medicare-Certified · Pittsburgh, Pennsylvania
Find Dr. Chang's professional email, personal email and mobile number
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Dr. Edward J. Chang is an ophthalmologist in Pittsburgh, Pennsylvania
Dr. Chang practices at Gamma Surgery Center in Pittsburgh, Pennsylvania.
Dr. Chang's NPI, 1811953615, was assigned on April 21, 2006. Dr. Chang graduated from Wake Forest University School of Medicine in 1991. Dr. Chang holds Pennsylvania license MD054866L.
- NPI
- 1811953615NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739116823
- NPI enumeration date
- April 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (412) 963-7917
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Edward J. Chang practices at Gamma Surgery Center in Pittsburgh, Pennsylvania
Dr. Chang's primary practice is Gamma Surgery Center, at 107 Gamma Drive, Pittsburgh, PA 15238. The practice phone is (412) 963-7917.
- Gamma Surgery Center107 Gamma Drive, Pittsburgh, PA 15238Phone(412) 963-7917
Source: Dmand AI Affiliation Data
Dr. Edward J. Chang is affiliated with 4 sites of care and 1 medical group
Dr. Chang's primary practice is Gamma Surgery Center in Pittsburgh, Pennsylvania. Dr. Chang is also affiliated with UPMC Mercy. Dmand AI also links Dr. Chang to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Edward J. 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 |
|---|---|
| Gamma Surgery Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Edward J. Chang is one of 843 ophthalmologists in Pennsylvania
Ophthalmology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chang is licensed in Pennsylvania.
Specialties and state licenses
- Ophthalmology, PennsylvaniaPrimary
Ophthalmologists near Dr. Chang
Counts of ophthalmologists 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. Edward J. Chang billed Medicare for 3,304 services in 2024
CMS data shows 3,304 Medicare services from Dr. Chang across 15 procedure codes in 2024, for 1,183 Medicare patients. Medicare paid $252,180 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,8532024: 2,6876%
- Surgery
- 2023: 2592024: 2777%
- Lab and pathology
- 2023: 2882024: 15347%
- Office and hospital visits
- 2023: 232024: 142517%
- Imaging
- 2023: 742024: 4539%
Where Dr. Chang's Medicare services took place, 2024
- In an office3,08593%
- In a facility2197%
Dr. Chang compared with the Pennsylvania median for ophthalmologists, 2024
- Dr. Chang
- Pennsylvania median
- Medicare services
- 3,304vs 1,3362.5 times
- Medicare patients
- 1,183vs 5242.3 times
- Part D claims
- 11,218vs 62018.1 times
Medians across 854 ophthalmologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other ophthalmologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Edward J. Chang treated 1,183 Medicare patients in 2024, average age 76
CMS counts 1,183 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 615 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 74, with 55% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women78366%
- Men40034%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis51%
- Diabetes23%
- Anxiety22%
- Osteoporosis21%
- Ischemic heart disease20%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
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 74
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Edward J. Chang wrote 11,308 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 11,308 Medicare Part D claims for 1,956 patients. 72% of them were for generic drugs. CMS names the drug for 11,218 of them, across 31 drugs with 11 or more claims each, at $1,304,795 in total drug cost. In 2023, CMS named 11,429 claims across 30 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic8,145 claims72%
- Brand-name3,163 claims28%
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: 11,4292024: 11,2182%
Drugs named by CMS: 31 in 2024, 30 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
Dr. Edward J. Chang scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Chang for performance year 2024, reported as part of a group. Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 330 procedures of cataract surgery by Dr. Chang, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 92of 100Final score
- 96.6of 100Quality
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chang ranks in Medicare procedure volume
- Cataract surgery
- 91st percentile330 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Edward J. Chang received $7,732 in industry payments from 2016 to 2025
CMS Open Payments shows 375 general payments to Dr. Chang from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $2,176.
General payments to Dr. Chang by program year, 2016 to 2025
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Edward J. Chang graduated from Wake Forest University School of Medicine
Dr. Chang graduated from Wake Forest University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Edward J. 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Edward J. 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. Edward J. Chang's NPI number?
Dr. Edward J. Chang's NPI number is 1811953615. It was assigned on April 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Edward J. Chang?
Dr. Edward J. Chang is an ophthalmologist in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Edward J. Chang practice?
Dr. Chang practices at 107 Gamma Drive, Pittsburgh, PA 15238. Dr. Chang's primary practice is Gamma Surgery Center in Pittsburgh, Pennsylvania. Dmand AI also links Dr. Chang to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Edward J. Chang's office phone number?
The practice phone on file for Dr. Chang is (412) 963-7917.
What is Dr. Edward J. Chang's medical license number?
Dr. Chang holds Pennsylvania license MD054866L.
Which hospitals is Dr. Edward J. Chang affiliated with?
Dr. Chang is affiliated with UPMC Mercy. Dmand AI links Dr. Chang to 1 more hospital.
Does Dr. Edward J. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 3,304 services in 2024, and Dr. Chang accepts Medicare assignment.
What is Dr. Edward J. Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Edward J. Chang see?
CMS counts 1,183 Medicare patients who saw Dr. Chang in 2024, with an average age of 76.
What services does Dr. Edward J. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92133).
Show 4 more questionsShow fewer questions
Where did Dr. Edward J. Chang go to medical school?
Dr. Chang graduated from Wake Forest University School of Medicine in 1991.
What drugs does Dr. Edward J. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Edward J. Chang received payments from drug or device companies?
CMS Open Payments shows $7,732 in general payments to Dr. Chang from 25 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Edward J. Chang been practicing?
Dr. Chang graduated from medical school in 1991, 35 years ago.
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