1. Home
  2. Directory
  3. Arizona
  4. Yuma
  5. Plastic Surgery
  6. NPI Profile

DR. THOMAS RYAN CHANG M.D.
NPI 1689724254
Plastic Surgery in Yuma, AZ

Active since January 12, 2007PECOS EnrolledAccepts Medicare Assignment
2270 S RIDGEVIEW DR STE 201, YUMA, AZ 85364(928) 344-5055 Get Directions Write a Review

NPPES record last updated: August 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 5, 2025, Feb 25, 2025, Jun 6, 2024 and 1 more (4 updates tracked since 2021).

About Dr. Thomas Ryan Chang M.d. NPPES

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

DR. THOMAS RYAN CHANG M.D. (NPI 1689724254) is an individual plastic surgery provider in Yuma, Arizona, licensed in Arizona (78028) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1993).

NPPES Registry Identity

NPI1689724254
Entity TypeIndividualMale
Primary Taxonomy208200000X
Provider Legal NameDR. THOMAS RYAN CHANGCredential: M.D.
Location Address2270 S RIDGEVIEW DR STE 201Yuma, AZ 85364-8880
Mailing Address2400 S Avenue AYuma, AZ 85364-7127 · (928) 344-2000
Phone(928) 344-5055
Sole ProprietorNo
Medical School CMSOtherGraduated 1993
Enumeration DateJanuary 12, 2007
Last NPPES UpdateAugust 5, 20254 updates tracked since enumeration
NPPES CertifiedAugust 5, 2025
✔ NPI 1689724254 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208200000X
Licenses✔ Licensed in AZ · 78028✔ Licensed in PA · MD057180L✔ Licensed in VA · 0101231575✔ Licensed in DC · MD33131✔ Licensed in MD · D57780✔ Licensed in IN · 01093807A
Definition
A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.
2270 S RIDGEVIEW DR STE 201, Yuma, AZ 85364
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Ryan Chang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941356042
PECOS Enrollment IDI20250129000183, I20250811002546
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 Reassignments

4

Medicare enrollment records show Thomas Chang reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yuma Regional Medical Center
0.4 mi
General Acute Care Hospital
2400 S AVE A
Yuma, AZ 85364
  • Reassigned Medicare billing, Arizona enrollment
  • 557 clinicians in this Medicare group
NPI 1194706655 (928) 344-2000
Geisinger Clinic
2,082 mi
Pediatrics
210 MEDICAL CENTER DRIVE
Philipsburg, PA 16866
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 4,429 clinicians in this Medicare group
NPI 1811948367 (814) 342-8001
Wellspan Medical Group
2,094 mi
Family Medicine
2 KEEFER DR
Mercersburg, PA 17236
  • Reassigned Medicare billing, Pennsylvania and Maryland enrollments
  • Also billed through NPI 1215515457 (Maryland)
  • 3,080 clinicians in this Medicare group
NPI 1407568298 (717) 328-2119
Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc
2,125 mi
Health Maintenance Organization
12255 FAIR OAKS PKWY
Fairfax, VA 22033
NPI 1215058326 (703) 934-5700

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 85364 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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 7

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

GABRIELA DE ANDA PA-S1
Physician Assistant
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
SCOTT THOMAS WILEY P.A.
Physician Assistant
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
DR. ANGEL RAMON LOPEZ M.D.
Surgery
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
ELISE TALLMAN
Surgery
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
DR. GEORGE BASHIR DECKEY
Surgery
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
DONNA K. ANDREAS PA-C
Physician Assistant (Medical)
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055
JAN PIETER TE WINKEL
Surgery
2270 S RIDGEVIEW DR STE 201
YUMA, AZ 85364
Yuma County (928) 344-5055

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 Thomas Chang's NPI number?

The NPI number for Thomas Chang is 1689724254. It was assigned to this individual provider in the NPPES registry on January 12, 2007.

Where is Thomas Chang located?

Thomas Chang practices at 2270 S Ridgeview Dr Ste 201, Yuma, AZ 85364. The listed phone number is (928) 344-5055.

What is Thomas Chang's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

Is Thomas Chang enrolled in Medicare?

Yes. Thomas Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Thomas Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Chang reassigns Medicare benefits to 4 organizations: Yuma Regional Medical Center (Yuma, AZ), Geisinger Clinic (Philipsburg, PA), Wellspan Medical Group (Mercersburg, PA) and Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Fairfax, VA). Each 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 Thomas Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Chang accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Arizona and 1 other insurer list Thomas 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 Thomas Chang was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.