Healthcare provider profile · identity verified

Alan S Weiss, MD

Allopathic & Osteopathic Physicians|Internal Medicine · ANNAPOLIS, MD · NPI 1891710562

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 Alan S Weiss, MD received $1,417.48 in general payments during 2025 across 71 reported records.

Salix Pharmaceuticals, a division of Bausch Health US, LLC accounted for 23.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 26 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Mounjaro, Ozempic, Sunosi, Xifaxan.

ABBVIE 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 ARMOUR THYROID as an associated drug or biological on 50 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Armour Thyroid by this doctor in 2024.

ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Synthroid by this doctor in 2024.

Axsome Therapeutics, 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 Sunosi as an associated drug or biological on 19758 records involving 6305 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Sunosi by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Mounjaro by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Ozempic by this doctor in 2024.

Salix Pharmaceuticals, a division of Bausch Health US, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XIFAXAN as an associated drug or biological on 101901 records involving 33018 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Xifaxan by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,417.48

71 reported records · 17 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
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $335.9223.7%212025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $302.6721.4%132025
ABBVIE INC. Unresolved — no canonical attribution shown $153.6610.8%92025
PFIZER INC. Unresolved — no canonical attribution shown $112.628.0%52025
Novo Nordisk Inc Unresolved — no canonical attribution shown $85.956.1%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $67.474.8%32025
Acella Pharmaceuticals, LLC Unresolved — no canonical attribution shown $67.034.7%32025
Corcept Therapeutics Unresolved — no canonical attribution shown $47.763.4%22025
Abbott Laboratories Unresolved — no canonical attribution shown $45.983.2%22025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $37.742.7%22025
Eisai Inc. Unresolved — no canonical attribution shown $32.172.3%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $27.792.0%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $24.651.7%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.051.5%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.601.4%12025
Grifols USA, LLC Unresolved — no canonical attribution shown $18.791.3%12025
TOLMAR, INC. Unresolved — no canonical attribution shown $16.631.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,417.4871

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
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $335.92 21 2025
Source payment records
  • 2025-02-05 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.15 · Open Payments source
  • 2025-02-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.49 · Open Payments source
  • 2025-03-06 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $1.33 · Open Payments source
  • 2025-03-06 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $13.88 · Open Payments source
  • 2025-03-06 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $14.27 · Open Payments source
  • 2025-04-07 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $14.97 · Open Payments source
  • 2025-05-05 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.14 · Open Payments source
  • 2025-05-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.51 · Open Payments source
  • 2025-05-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.14 · Open Payments source
  • 2025-06-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.20 · Open Payments source
  • 2025-06-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.58 · Open Payments source
  • 2025-06-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.12 · Open Payments source
  • 2025-06-30 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.30 · Open Payments source
  • 2025-06-30 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.12 · Open Payments source
  • 2025-07-28 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.71 · Open Payments source
  • 2025-08-19 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.55 · Open Payments source
  • 2025-09-08 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.47 · Open Payments source
  • 2025-10-27 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.90 · Open Payments source
  • 2025-11-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.37 · Open Payments source
  • 2025-12-16 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.72 · Open Payments source
  • 2025-12-23 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.00 · Open Payments source
Sunosi
Normalized: sunosi
Drug Axsome Therapeutics, Inc. $270.64 12 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $112.62 5 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $112.62 5 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $74.99 4 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $74.99 4 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $67.47 3 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $67.47 3 2025
Source payment records
NP Thyroid 60
Normalized: np thyroid 60
Drug Acella Pharmaceuticals, LLC $67.03 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $67.02 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $67.02 3 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $52.41 3 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $47.76 2 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $45.98 2 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $37.74 2 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $32.17 1 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $32.03 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $27.79 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $26.26 2 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $26.26 2 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $24.65 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $21.05 1 2025
Source payment records
STRENSIQ
Normalized: strensiq
Biological Alexion Pharmaceuticals, Inc. $19.60 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $18.93 1 2025
Source payment records
Gamunex-C
Normalized: gamunex c
Biological Grifols USA, LLC $18.79 1 2025
Source payment records
JATENZO
Normalized: jatenzo
Drug TOLMAR, INC. $16.63 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
MOUNJARO
mounjaro
2025 Mounjaro 2024 34
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 23
Beneficiary count suppressed
exact normalized Medicare Part D
Sunosi
sunosi
2025 Sunosi 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
XIFAXAN
xifaxan
2025 Xifaxan 2024 14
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 ARMOUR THYROID
open payments reported associated product
CMS Open Payments — General Payments
50 supporting records · 11 recipient NPIs · example record 1201517088
Armour Thyroid · 2024
Exact normalized brand match · 1 Part D row
26 13
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
33 suppressed by CMS
Axsome Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 Sunosi
open payments reported associated product
CMS Open Payments — General Payments
19758 supporting records · 6305 recipient NPIs · example record 1235293059
Sunosi · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
34 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Exact reporting entity; no affiliate inference
2025 XIFAXAN
open payments reported associated product
CMS Open Payments — General Payments
101901 supporting records · 33018 recipient NPIs · example record 1231775337
Xifaxan · 2024
Exact normalized brand match · 1 Part D row
14 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
Levothyroxine SodiumLevothyroxine Sodium12242
ProgesteroneProgesterone, Micronized10436
Rosuvastatin CalciumRosuvastatin Calcium8735
LisinoprilLisinopril5415
Trazodone HclTrazodone Hcl5118
AlprazolamAlprazolam48suppressed
Escitalopram OxalateEscitalopram Oxalate4015
Losartan PotassiumLosartan Potassium3915
Tramadol HclTramadol Hcl37suppressed
GabapentinGabapentin3612
Zolpidem TartrateZolpidem Tartrate35suppressed
MeloxicamMeloxicam3411
MounjaroTirzepatide34suppressed
SynthroidLevothyroxine Sodium33suppressed
SpironolactoneSpironolactone3112
FinasterideFinasteride2914
Liothyronine SodiumLiothyronine Sodium2812
Armour ThyroidThyroid,pork2613
ValacyclovirValacyclovir Hcl2513
EszopicloneEszopiclone24suppressed
Metoprolol SuccinateMetoprolol Succinate23suppressed
OzempicSemaglutide23suppressed
Metformin Hcl ErMetformin Hcl21suppressed
Amlodipine BesylateAmlodipine Besylate20suppressed
Atorvastatin CalciumAtorvastatin Calcium20suppressed
CelecoxibCelecoxib20suppressed
FurosemideFurosemide20suppressed
BelsomraSuvorexant19suppressed
HydrocortisoneHydrocortisone19suppressed
Bupropion XlBupropion Hcl18suppressed
ClonazepamClonazepam18suppressed
Testosterone CypionateTestosterone Cypionate18suppressed
Tizanidine HclTizanidine Hcl18suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
SimvastatinSimvastatin17suppressed
TestosteroneTestosterone17suppressed
Ondansetron OdtOndansetron16suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine15suppressed
FamotidineFamotidine15suppressed
FluconazoleFluconazole15suppressed
MinoxidilMinoxidil15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
AzithromycinAzithromycin14suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
Metformin HclMetformin Hcl14suppressed
Rabeprazole SodiumRabeprazole Sodium14suppressed
TirosintLevothyroxine Sodium14suppressed
VyvanseLisdexamfetamine Dimesylate14suppressed
XifaxanRifaximin14suppressed
Ropinirole HclRopinirole Hcl13suppressed
Colesevelam HclColesevelam Hcl12suppressed
LorazepamLorazepam12suppressed
Nifedipine ErNifedipine12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Buspirone HclBuspirone Hcl11suppressed
EstradiolEstradiol11suppressed
Fluticasone-Salmeterol HfaFluticasone Propion/Salmeterol11suppressed
JanuviaSitagliptin Phosphate11suppressed
OmeprazoleOmeprazole11suppressed
PrednisonePrednisone11suppressed
SunosiSolriamfetol Hcl11suppressed

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 $1,417.48 · 71 records Salix Pharmaceuticals, a division of Bausch Health US, LLC CREON, Dexcom G6 Transmitter, FREESTYLE LIBRE 3, GEMTESA, Gamunex-C, JATENZO, Korlym, LINZESS, Leqembi, MOUNJARO, NP Thyroid 60, NURTEC ODT, Ozempic, QULIPTA, Rybelsus, STRENSIQ, Sunosi, Symbravo, The Cologuard Plus Collection Kit, UBRELVY, VOQUEZNA, VRAYLAR, Wegovy, XIFAXAN, ZAVZPRET, ZEPBOUND 6
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