Dr. Iou-Ren Edward Chang, DO
- Hospital affiliations
- 2
- Industry payments
- $10,285
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 4 Allegheny Ctr, Pittsburgh, PA 15212
- Practice phone
- Call (412) 330-5846
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AGH Surgery Center
Pittsburgh, Pennsylvania
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. Iou-Ren Edward Chang is an orthopedic surgeon in Pittsburgh, Pennsylvania
Dr. Chang practices at AGH Surgery Center in Pittsburgh, Pennsylvania.
Dr. Chang's NPI, 1376162255, was assigned on April 10, 2020. Dr. Chang graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2020. Dr. Chang holds Pennsylvania license OS025059.
- NPI
- 1376162255NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315369121
- NPI enumeration date
- April 10, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (412) 330-5846
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Iou-Ren Edward Chang practices at AGH Surgery Center in Pittsburgh, Pennsylvania
Dr. Chang's primary practice is AGH Surgery Center, at 4 Allegheny Ctr, Pittsburgh, PA 15212 in Allegheny County. The practice phone is (412) 330-5846.
- AGH Surgery Center4 Allegheny Ctr, Pittsburgh, PA 15212 · Allegheny CountyPhone(412) 330-5846
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Iou-Ren Edward Chang is affiliated with 4 sites of care and 1 medical group
Dr. Chang's primary practice is AGH Surgery Center in Pittsburgh, Pennsylvania. Dr. Chang is also affiliated with Allegheny General Hospital. The medical group on file is AHN Primary Care - Family Med Associates at H+W Pavilion Bethel Park. Dmand AI also links Dr. Chang to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Iou-Ren Edward Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AGH Surgery Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Iou-Ren Edward Chang is one of 994 orthopedic surgeons in Pennsylvania
Orthopaedic surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chang is licensed in Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, PennsylvaniaPrimary
Orthopedic surgeons near Dr. Chang
Counts of orthopedic surgeons 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. Iou-Ren Edward Chang's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 66, with 71% 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 66
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Dr. Iou-Ren Edward Chang ranks in the 37th percentile for knee replacement in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of knee replacement by Dr. Chang, more than 37% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chang ranks in Medicare procedure volume
- Knee replacement
- 37th percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
Dr. Iou-Ren Edward Chang received $10,285 in industry payments from 2024 to 2025
CMS Open Payments shows 69 general payments to Dr. Chang from 10 drug and device companies from 2024 to 2025. Travel and lodging make up the largest share, 56% of the total. Zimmer Biomet Holdings, Inc. paid the most, $7,711.
General payments to Dr. Chang by program year, 2024 to 2025
General payments to Dr. Chang by kind, 2024 to 2025
- Travel and lodging$5,77856%
- Food and beverage$4,37042%
- Education$1371%
Companies that paid Dr. Chang the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Iou-Ren Edward Chang graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med
Dr. Chang graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Iou-Ren Edward 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Iou-Ren Edward 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. Iou-Ren Edward Chang's NPI number?
Dr. Iou-Ren Edward Chang's NPI number is 1376162255. It was assigned on April 10, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Iou-Ren Edward Chang?
Dr. Iou-Ren Edward Chang is an orthopedic surgeon in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Iou-Ren Edward Chang practice?
Dr. Chang practices at 4 Allegheny Ctr, Pittsburgh, PA 15212. Dr. Chang's primary practice is AGH Surgery Center in Pittsburgh, Pennsylvania. Dmand AI also links Dr. Chang to 1 hospital and 1 group practice or clinic.
What is Dr. Iou-Ren Edward Chang's office phone number?
The practice phone on file for Dr. Chang is (412) 330-5846.
What is Dr. Iou-Ren Edward Chang's medical license number?
Dr. Chang holds Pennsylvania license OS025059.
Which hospitals is Dr. Iou-Ren Edward Chang affiliated with?
Dr. Chang is affiliated with Allegheny General Hospital. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Iou-Ren Edward Chang part of?
Dr. Chang is linked to AHN Primary Care - Family Med Associates at H+W Pavilion Bethel Park.
Does Dr. Iou-Ren Edward Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Where did Dr. Iou-Ren Edward Chang go to medical school?
Dr. Chang graduated from Lincoln Mem Univ, Debusk Col of Osteopathic Med in 2020.
Has Dr. Iou-Ren Edward Chang received payments from drug or device companies?
CMS Open Payments shows $10,285 in general payments to Dr. Chang from 10 companies from 2024 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Iou-Ren Edward Chang been practicing?
Dr. Chang graduated from medical school in 2020, 6 years ago.
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