Has David Nguyen, MD received payments from drug or device companies?

Yes. Drug and device makers reported $2,133 in general payments to David Nguyen, MD across 54 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 David Nguyen, 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 David Nguyen, 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.

David Nguyen, MD

Physical Medicine & Rehabilitation · Costa Mesa, CANPI 1972808459

Payments from drug & device makers

$2,133in general payments, 2019–2025

Across 54 payments — averaging $39.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Nevro Corp.$340
Merz North America, Inc.$267
Boston Scientific$227
Biohaven Pharmaceutical Holding Company Ltd.$222
AbbVie$130
ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$125
plus $822 from 15 others

What the payments were for

Food & beverage$2,133100%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

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
Nevro Corp.	4	$340
Merz North America, Inc.	2	$267
Boston Scientific	3	$227
Biohaven Pharmaceutical Holding Company Ltd.	6	$222
AbbVie(2 entities)	6	$130
ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)	1	$125
Nalu Medical, Inc.	7	$124
Lilly USA, LLC	1	$116
Collegium Pharmaceutical, Inc.	5	$109
Medtronic(2 entities)	2	$89
Merz Pharmaceuticals, LLC	2	$85
Johnson & Johnson	2	$52
Amgen	3	$40
Avanos Medical	2	$39
Averitas Pharma Inc.	1	$35
Bioventus LLC	1	$31
Endo Pharmaceuticals Inc.	2	$28
ERMI LLC	1	$24
Zimmer Biomet	1	$21
Pfizer	1	$15
Pacira Therapeutics, Inc.	1	$14

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.

XEOMIN$267
Senza Spinal Cord Stimulation System$252
GENERAL PAIN MANAGEMENT$149
LifeVest$125
TALTZ$116

How this compares

$2,133 in reported general payments places this provider in the 80th percentile of 830 physical medicine & rehabilitation providers in California.

See all physical medicine & rehabilitation providers in California →

Medicare billing

Part B allowed, 2024

$308,217

Medicare patients

189

Services billed

7,868

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
OxycontinOxycodone Hcl	17	$6,799
MovantikNaloxegol Oxalate	12	$4,750
Pregabalin	192	$3,923
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen	120	$3,461
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen	129	$3,369
Oxycodone Hcl	130	$2,918
Diclofenac Sodium	105	$1,501
Morphine Sulfate ErMorphine Sulfate	34	$1,422
Naloxone Hcl	21	$1,145
Gabapentin	92	$958
Celecoxib	34	$935
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl	20	$893
Hydromorphone Hcl	13	$692
Baclofen	56	$688
Ondansetron OdtOndansetron	28	$342

Paid to pharmacies, not to this prescriber.

Other physical medicine & rehabilitation in Costa Mesa

Ziyad AyyoubParamount$1.8M
John ShenFontana$1.3M
Andrew SkalskySan Diego$463K
Nanette JoyceSacramento$237K
Mary OatesSanta Maria$158K
Jeryl WiensFresno$125K
Pratik GandhiAnaheim$122K
Ronald SchillingLong Beach$113K
Kevin BarretteSan Francisco$84K
Jeffrey ChenSan Diego$82K

See the full list for California →

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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