Healthcare provider profile · identity verified

Mary Ann Cameron, MD

Allopathic & Osteopathic Physicians|Internal Medicine · TULSA, OK · NPI 1619924677

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Mary Ann Cameron, MD received $758.07 in general payments during 2025 across 41 reported records.

Travere Therapeutics, Inc. accounted for 27.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Jynarque, Kerendia.

Bayer Healthcare Pharmaceuticals Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 56 claims for Kerendia by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 103 claims for Jardiance by this doctor in 2024.

Otsuka America Pharmaceutical, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JYNARQUE as an associated drug or biological on 11133 records involving 4164 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Jynarque by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$758.07

41 reported records · 12 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $206.9127.3%92025
Amgen Inc. Unresolved — no canonical attribution shown $137.5618.1%142025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $96.2912.7%42025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $62.818.3%32025
Cycle Pharmaceuticals Inc Unresolved — no canonical attribution shown $51.886.8%22025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $41.145.4%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $34.304.5%22025
SHIELD THERAPEUTICS INC Unresolved — no canonical attribution shown $31.904.2%12025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $29.663.9%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $22.823.0%12025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $21.692.9%12025
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $21.112.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$758.0741

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $96.29 4 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $79.41 9 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $62.81 3 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $58.15 5 2025
Source payment records
Venxxiva
Normalized: venxxiva
Drug Cycle Pharmaceuticals Inc $51.88 2 2025
Source payment records
INJECTAFER
Normalized: injectafer
Drug Daiichi Sankyo Inc. $41.14 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $34.30 2 2025
Source payment records
ACCRUFER
Normalized: accrufer
Drug SHIELD THERAPEUTICS INC $31.90 1 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $29.66 1 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $22.82 1 2025
Source payment records
TERLIVAZ
Normalized: terlivaz
Drug Mallinckrodt Hospital Products Inc. $21.69 1 2025
Source payment records
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $21.11 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
JARDIANCE
jardiance
2025 Jardiance 2024 103 exact normalized Medicare Part D
JYNARQUE
jynarque
2025 Jynarque 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 56
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
56 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
103 19
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 JYNARQUE
open payments reported associated product
CMS Open Payments — General Payments
11133 supporting records · 4164 recipient NPIs · example record 1227267725
Jynarque · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Amlodipine BesylateAmlodipine Besylate32376
Losartan PotassiumLosartan Potassium28772
FarxigaDapagliflozin Propanediol28554
SpironolactoneSpironolactone14643
Metoprolol SuccinateMetoprolol Succinate12731
JardianceEmpagliflozin10319
LisinoprilLisinopril9924
FurosemideFurosemide9734
Hydralazine HclHydralazine Hcl7424
CarvedilolCarvedilol7122
HydrochlorothiazideHydrochlorothiazide6721
AllopurinolAllopurinol6619
Metoprolol TartrateMetoprolol Tartrate6518
CalcitriolCalcitriol6420
CephalexinCephalexin5631
KerendiaFinerenone56suppressed
Potassium Citrate ErPotassium Citrate4011
Doxazosin MesylateDoxazosin Mesylate37suppressed
PrednisonePrednisone3711
Tamsulosin HclTamsulosin Hcl3313
ValsartanValsartan31suppressed
TorsemideTorsemide28suppressed
Potassium ChloridePotassium Chloride24suppressed
Atorvastatin CalciumAtorvastatin Calcium21suppressed
Vitamin D2Ergocalciferol (Vitamin D2)20suppressed
Nebivolol HclNebivolol Hcl19suppressed
Oxybutynin ChlorideOxybutynin Chloride18suppressed
ChlorthalidoneChlorthalidone17suppressed
ParicalcitolParicalcitol14suppressed
Amiloride HclAmiloride Hcl13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1312
JynarqueTolvaptan13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
EstradiolEstradiol12suppressed
Nifedipine ErNifedipine12suppressed
Thiola EcTiopronin12suppressed
Clonidine HclClonidine Hcl11suppressed
MetolazoneMetolazone11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $758.07 · 41 records Travere Therapeutics, Inc. ACCRUFER, Fabhalta, INJECTAFER, JARDIANCE, JYNARQUE, KRYSTEXXA, Kerendia, TARPEYO, TAVNEOS, TERLIVAZ, VELPHORO, Venxxiva 3
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error