Dr. Thomas Ryan Chang , MD
Plastic Surgery β’ Yuma, AZ
2270 S Ridgeview Dr Ste 201
Yuma, AZ 853648880
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on January 12, 2007; this date does not establish years in practice.
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Published CMS data list 52 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Ibuprofen β 27 prescription fills, including refills.
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) β 13 prescription fills, including refills.
- Cephalexin β 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 12 in 2015 to 52 in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2015β2023.
Practice Location & Contact Primary Location
2270 S Ridgeview Dr Ste 201
Yuma, AZ 853648880
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Wellspan Medical Group; Yuma Regional Medical Center. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
1993
What Public CMS Data Show
Plastic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
52 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$575 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023.
Open Payments general payments, program year 2025
All general payments: $343.07 across 8 records.
By nature of payment
- Food and Beverage: $343.07 across 8 records.
Reporting-company totals
- Abbott Laboratories: $323.32 across 7 records.
- Tactile Systems Technology Inc: $19.75 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
33 years (graduated 1993)
CMS Doctors and Clinicians data list 1993 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Chang has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Chang as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Yuma and Arizona
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Chang are from 2023.
1 active clinicians are listed under Plastic Surgery with a practice address in Yuma, AZ (130 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2015 to 52 in 2023.
- 2015: 12
- 2016: 11
- 2021: 15
- 2022: 71
- 2023: 52
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30-day fills
30-day fills went from 12 in 2015 to 52 in 2023.
- 2015: 12
- 2016: 11
- 2021: 15
- 2022: 71
- 2023: 52
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Part D drug cost
Part D drug cost decreased 99% from $63,194 in 2015 to $575 in 2023.
- 2015: $63,194
- 2016: $241
- 2021: $127
- 2022: $810
- 2023: $575
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $40.34 in 2023 to $343.07 in 2025.
- 2023: $40.34
- 2024: $401.75
- 2025: $343.07
Sources: CMS Medicare Part D Prescribers (2023), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $343.07.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ESPRIT | General | $107.71 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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DIAMONDBACK PERIPHERAL | General | $98.94 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ARMADA | General | $29.52 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ESPRIT | General | $29.42 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
OMNILINK ELITE | General | $21.67 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ABSOLUTE PRO | General | $21.67 |
| Tactile Systems Technology Inc |
Food and Beverage
In-kind items and services
|
Flexitouch Plus | General | $19.75 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ESPRIT | General | $14.39 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ibuprofen | Ibuprofen | 27 | 325 | $239.77 | 17 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 13 | 62 | $138.96 | β |
| Cephalexin | Cephalexin | 12 | 161 | $196.58 | β |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-08-05NUCC Taxonomy Code: 208200000X
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.
NUCC Taxonomy Code: 208200000X
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.
NUCC Taxonomy Code: 208200000X
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.
NUCC Taxonomy Code: 208200000X
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.
NUCC Taxonomy Code: 208200000X
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.
NUCC Taxonomy Code: 208200000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PLASTIC AND RECONSTRUCTIVE SURGERY
I20090915000198
DC
0941356042
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Wellspan Medical Group
25 Monument Rd, York, PA 174035049
Phone: 7178122390
Yuma Regional Medical Center
2400 S Ave A, Yuma, AZ 853647127
Phone: 9283442000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant - Medical
Physician Assistant (Certified)
Surgery
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2270 S RIDGEVIEW DR STE 201, YUMA, AZ 853648880 (Tel: 9283445055)
Registered at 2400 S AVENUE A, YUMA, AZ 853647127 (Tel: 9283442000)
Plastic Surgery (license number reported to NPPES: PA MD057180L)
Plastic Surgery (license number reported to NPPES: VA 0101231575)
NPI status registered as active in NPPES database
Registered at 700 2ND ST NE, WASHINGTON, DC 200028100 (Tel: 2023463000)
Registered at 2101 E JEFFERSON ST, KAISER PERMANENTE MEDICAL ENROLLMENT, ROCKVILLE, MD 208524908 (Tel: 3018162424)
Recorded as THOMAS CHANG, M.D.
Plastic Surgery (license number reported to NPPES: DC MD33131)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
2400 S Avenue A
Yuma, AZ 853647127
Phone: 9283442000