Has Charles Carpenter received payments from drug or device companies?

Yes. Drug and device makers reported $301 in general payments to Charles Carpenter across 11 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 Charles Carpenter 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 Charles Carpenter 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.

Charles Carpenter

Public Health & General Preventive Medicine · Sacramento, CANPI 1457520462

Payments from drug & device makers

What this record shows

Almost everything reported here is food and beverage — 95.7% of the total across 11 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Indivior Inc. accounts for 80.2% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2019 at $146 and has fallen 90.7% since, to $14 in 2025.

$301in general payments, 2019–2025

Across 11 payments — averaging $27.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Indivior Inc.$242
Braeburn Inc.$47
Alkermes, Inc.$13

$941,647in research payments, 2019–2025

Across 32 payments — averaging $29,426 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.

Modernatx, Inc.$352K
Bavarian Nordic A/s$314K
AstraZeneca$196K
Astrazeneca UK Limited$81K

What the payments were for

Food & beverage$28896%
Education$134%

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
Indivior Inc.	8	$242
Braeburn Inc.	2	$47
Alkermes, Inc.	1	$13

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.

SUBLOCADE$118

How this compares

$301 in reported general payments places this provider in the 70th percentile of 109 public health & general preventive medicine providers in California.

See all public health & general preventive medicine providers in California →

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl	33	$5,361
Buprenorphine Hcl	21	$1,852
Gabapentin	12	$229

Paid to pharmacies, not to this prescriber.

Other public health & general preventive medicine in Sacramento

Heather LeisySacramento$238
Steven GalsonThousand Oaks$594K
Ryan ZaneSan Bernardino$97K
Ross MillerBeverly Hills$65K
Daniel CosgroveIndian Wells$61K
Philp DarneySan Francisco$13K
Karen StuderLoma Linda$9K
George RutherfordSan Francisco$9K
Kate HaggertySan Marcos$8K
Serena TonstadLoma Linda$5K

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Identity: NPPES NPI Registry, July 2026.

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