Has Michael Chang, MD received payments from drug or device companies?

Yes. Drug and device makers reported $26,137 in general payments to Michael Chang, MD across 57 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Michael Chang, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Michael Chang, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Michael Chang, MD

Orthopaedic Surgery of the Spine · Yakima, WANPI 1588640361

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $21,375 of the $26,137 with a category attached, or 81.8%. Seaspine Orthopedics Corporation accounts for 64.3% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2021 at $9,341 and has fallen 98.2% since, to $165 in 2025.

$26,137in general payments, 2019–2025

Across 57 payments — averaging $458.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Seaspine Orthopedics Corporation$17K
Orthofix Medical, Inc.$7K
Medtronic$2K
Vertex$165
Johnson & Johnson$53
Musculoskeletal Transplant Foundation Inc.$33
plus $21 from 1 others

$12,050in research payments, 2019–2025

Across 1 payment — averaging $12,050 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

Medtronic$12K

What the payments were for

Consulting fees$21,37582%
Travel & lodging$3,81815%
Food & beverage$9444%

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Seaspine Orthopedics Corporation	23	$16,805
Orthofix Medical, Inc.	14	$6,849
Medtronic(2 entities)	14	$2,211
Vertex	1	$165
Johnson & Johnson	3	$53
Musculoskeletal Transplant Foundation Inc.	1	$33
Nevro Corp.	1	$21

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

Mariner$1,885
Meridian$1,688
O-ARM$897
3-Degrees Anterior Cervical Plating (ACP) System$718
Reliant Anterior Cervical Plating (ACP) System$718
Cervical-Stim Osteogenesis Stimulator$718
LONESTAR Cervical Stand Alone (CSA)$718
ProCallus Fixator$718
Shoreline ACS$635
NanoMetalene Technology$635
Firebird Deformity Correction System$573
CD HORIZON$530
Regatta$490
Vu aPOD Prime NanoMetalene$490
MazorX - Renaissance$356
CATALYFT PL EXPANDABLE INTERBODY SYSTEM$171
JOURNAVX$165

How this compares

$26,137 in reported general payments places this provider in the 70th percentile of 61 orthopaedic surgery of the spine providers in Washington.

See all orthopaedic surgery of the spine providers in Washington →

Medicare billing

Part B allowed, 2024

$200,903

Medicare patients

343

Services billed

911

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Methocarbamol	197	$2,581
Baclofen	217	$1,952
Gabapentin	79	$1,001
Oxycodone Hcl	126	$842
Ondansetron OdtOndansetron	73	$675
Methylprednisolone	64	$604
Cyclobenzaprine Hcl	12	$89
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen	11	$48

Paid to pharmacies, not to this prescriber.

Other orthopaedic surgery of the spine in Yakima

Antoine TohmehSpokane$4.3M
Rajiv SethiSeattle$2.9M
Mark FreebornKirkland$1.8M
Alireza AnissipourEverett$598K
Richard BransfordSeattle$413K
Jens ChapmanSeattle$394K
Venu NemaniSeattle$199K
Philip LouieSeattle$132K
John ShusterSpokane$124K
Nicholas SpinaSeattle$98K

See the full list for Washington →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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