NPPES file of Aug 9, 2026

Iou-Ren Edward Chang, DO

Orthopaedic Surgery Physician · Pittsburgh, PA

Iou-Ren Edward Chang, DO is an orthopaedic surgery physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1376162255, issued on Apr 10, 2020. Check the license (Pennsylvania OS025059, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1376162255
Name
Iou-Ren Edward Chang
Credential
DO
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
OS025059 PA
Self-reported in NPPES; status is on the state search
Practice location
1307 Federal St Ste 2, Pittsburgh, PA 15212
Phone
(877) 660-6777
Enumerated
Apr 10, 2020
Record last updated
Jul 10, 2025
Fax
(412) 359-8055
Medicare enrollment
Enrolled (PECOS I20250722003879); accepts Medicare assignment
Medical or professional school
Lincoln Mem Univ, Debusk Col Of Osteopathic Med, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1307 Federal St Ste 2

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alyssa Acquaviva, PA-CPhysician Assistant1649743907
  2. Tony Albertelli, DPMPrimary Podiatric Medicine Podiatrist1235192519
  3. Gregory Altman, MDSports Medicine (Orthopaedic Surgery) Physician1285633123
  4. Alaina Bailey, PAPhysician Assistant1366214322
  5. Rachel Baldinger, PA-CPhysician Assistant1396351631
  6. Mary BrandtFoot & Ankle Surgery Podiatrist1477133569

Verify Iou-Ren Edward Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS025059
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $4,615.49

29 payments; by number, the most common kind was food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Iou-Ren Chang$4,615
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Allegheny ClinicPittsburgh, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Iou-Ren Edward Chang among 1,253 orthopaedic surgery physician records in Pennsylvania

Iou-Ren Edward Chang, DO is one of 1,253 orthopaedic surgery physician records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2020 · median 2003 among the 777 with a school on file
  • Record last updated2025 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Pennsylvania

There are 1,253 orthopaedic surgery physician records in Pennsylvania.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Daniel Altman, MDPittsburgh, PA 152121184623167
  2. Michael Beckett, M.D.Pittsburgh, PA 152121346485067
  3. Robert Brabender, MDPittsburgh, PA 152121902057987
  4. Aaron Burgess, M.D.Pittsburgh, PA 152121073744942
  5. Patrick Demeo, MDPittsburgh, PA 152121205836855
  6. Lisa Ercolano, MDPittsburgh, PA 152121255592242
  7. Julius Huebner, MDPittsburgh, PA 152121679574610
  8. Gerald Pifer, MDPittsburgh, PA 152121063413367

Common questions

What is Iou-Ren Edward Chang, DO's NPI number?

Iou-Ren Edward Chang, DO's National Provider Identifier (NPI) is 1376162255, issued on Apr 10, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Iou-Ren Edward Chang, DO located?

The NPPES record lists a practice address at 1307 Federal St Ste 2, Pittsburgh, PA, 15212. Phone: (877) 660-6777. Providers update this record themselves, so call before visiting.

How can I verify Iou-Ren Edward Chang, DO's license?

NPPES lists Pennsylvania license number OS025059, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.