DR. WILLIAM W CHANG MD
NPI 1083095178
Surgery in Pittsburgh, PA

Q: What is William Chang's NPI number?

The NPI number for William Chang is 1083095178. It was assigned to this individual provider in the NPPES registry on June 15, 2015.

Q: What is William Chang's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for William Chang was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 15, 2015PECOS Enrolled

3471 5TH AVE STE 101, PITTSBURGH, PA 15213(412) 647-0467 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 28, 2026, Aug 25, 2021, Jun 23, 2021 (3 updates tracked since 2021).

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About Dr. William W Chang Md NPPES

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

DR. WILLIAM W CHANG MD (NPI 1083095178) is an individual surgery provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD493557) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083095178

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. WILLIAM W CHANGCredential: MD

Location Address3471 5TH AVE STE 101Pittsburgh, PA 15213-3218

Mailing Address3471 5th Ave Ste 101Pittsburgh, PA 15213-3218 · (412) 647-0467

Phone(412) 647-0467

Sole ProprietorYes

Enumeration DateJune 15, 2015

Last NPPES UpdateJuly 28, 20263 updates tracked since enumeration

NPPES CertifiedJuly 28, 2026

✔ NPI 1083095178 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in PA · MD493557

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

3471 5TH AVE STE 101, Pittsburgh, PA 15213

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William W Chang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show William Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Pittsburgh Physicians

Same address

Internal Medicine

3500 5TH AVE, 4TH FLOOR
Pittsburgh, PA 15213

Reassigned Medicare billing, Pennsylvania enrollment
7,114 clinicians in this Medicare group

NPI 1548433527 (412) 682-2434

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15213 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

$84.88 typical visit price

range $54.64 – $166.87

Typical copayment $21.22 (range $13.66 – $41.71)

Most-billed visit code 99203

Established Patient

$68.36 typical visit price

range $17.33 – $135.84

Typical copayment $17.09 (range $4.33 – $33.96)

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 3

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

MISS MELODY HOPE YU PA-C

Physician Assistant (Surgical)

3471 5TH AVE STE 101
PITTSBURGH, PA 15213

Allegheny County (412) 647-0467

ALAA SADA M.D

Surgery

3471 5TH AVE STE 101
PITTSBURGH, PA 15213

Allegheny County (412) 647-0467

EMMA TRACEY HUMES PA-C

Physician Assistant

3471 5TH AVE STE 101
PITTSBURGH, PA 15213

Allegheny County (412) 647-0467

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 William Chang's NPI number?

The NPI number for William Chang is 1083095178. It was assigned to this individual provider in the NPPES registry on June 15, 2015.

Where is William Chang located?

William Chang practices at 3471 5th Ave Ste 101, Pittsburgh, PA 15213. The listed phone number is (412) 647-0467.

What is William Chang's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is William Chang enrolled in Medicare?

Yes. William Chang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Chang reassigns Medicare benefits to University Of Pittsburgh Physicians (Pittsburgh, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Chang accept?

Health plans from Anthem Blue Cross and Blue Shield list William 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.

When was this NPI record last updated?

The NPPES record for William Chang was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.