Healthcare provider profile · identity verified

Michael D Andya, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · GRASS VALLEY, CA · NPI 1760428452

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 Michael D Andya, M.D. received $14.07 in general payments during 2025 across 1 reported records.

PFIZER INC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 81 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$14.07

1 reported records · 1 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
PFIZER INC. Unresolved — no canonical attribution shown $14.07100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$14.071

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
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $14.07 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $14.07 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $14.07 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
81 17
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
29 29

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
Atorvastatin CalciumAtorvastatin Calcium379114
Losartan PotassiumLosartan Potassium28580
Levothyroxine SodiumLevothyroxine Sodium22461
Amlodipine BesylateAmlodipine Besylate22060
Tamsulosin HclTamsulosin Hcl19154
Escitalopram OxalateEscitalopram Oxalate18952
LisinoprilLisinopril17849
HydrochlorothiazideHydrochlorothiazide16653
Zolpidem TartrateZolpidem Tartrate15535
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14435
OmeprazoleOmeprazole14139
SimvastatinSimvastatin13639
GabapentinGabapentin11930
Metformin HclMetformin Hcl11633
Potassium ChloridePotassium Chloride10229
AlprazolamAlprazolam9123
FurosemideFurosemide9031
Metoprolol TartrateMetoprolol Tartrate8823
EliquisApixaban8117
Metoprolol SuccinateMetoprolol Succinate8025
AtenololAtenolol7519
FinasterideFinasteride6921
Trazodone HclTrazodone Hcl6918
ClopidogrelClopidogrel Bisulfate6819
Albuterol Sulfate HfaAlbuterol Sulfate6229
JanuviaSitagliptin Phosphate6213
Tramadol HclTramadol Hcl5816
Rosuvastatin CalciumRosuvastatin Calcium5519
Oxybutynin Chloride ErOxybutynin Chloride5115
Pantoprazole SodiumPantoprazole Sodium4915
AllopurinolAllopurinol4816
CelecoxibCelecoxib4718
ValacyclovirValacyclovir Hcl4722
SynthroidLevothyroxine Sodium46suppressed
CephalexinCephalexin4338
AzithromycinAzithromycin4133
Donepezil HclDonepezil Hcl3911
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3825
CarvedilolCarvedilol36suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide35suppressed
Montelukast SodiumMontelukast Sodium3511
Duloxetine HclDuloxetine Hcl33suppressed
Tizanidine HclTizanidine Hcl3316
Warfarin SodiumWarfarin Sodium33suppressed
EstradiolEstradiol32suppressed
EzetimibeEzetimibe3111
PregabalinPregabalin31suppressed
Morphine Sulfate ErMorphine Sulfate29suppressed
PaxlovidNirmatrelvir/Ritonavir2929
TemazepamTemazepam29suppressed
LorazepamLorazepam28suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2818
Trelegy ElliptaFluticasone/Umeclidin/Vilanter28suppressed
Arnuity ElliptaFluticasone Furoate27suppressed
Olmesartan MedoxomilOlmesartan Medoxomil27suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf2717
Ipratropium BromideIpratropium Bromide26suppressed
PrednisonePrednisone2617
TradjentaLinagliptin25suppressed
Doxycycline HyclateDoxycycline Hyclate2417
Sertraline HclSertraline Hcl24suppressed
GlipizideGlipizide23suppressed
Alendronate SodiumAlendronate Sodium22suppressed
Bupropion XlBupropion Hcl22suppressed
LovastatinLovastatin22suppressed
Memantine HclMemantine Hcl21suppressed
SpironolactoneSpironolactone20suppressed
XareltoRivaroxaban20suppressed
DiazepamDiazepam19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1913
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium18suppressed
IrbesartanIrbesartan18suppressed
Propranolol Hcl ErPropranolol Hcl18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
Citalopram HbrCitalopram Hydrobromide17suppressed
Pravastatin SodiumPravastatin Sodium17suppressed
FamciclovirFamciclovir16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
IbuprofenIbuprofen15suppressed
Metformin Hcl ErMetformin Hcl15suppressed
Tolterodine Tartrate ErTolterodine Tartrate14suppressed
Glipizide-MetforminGlipizide/Metformin Hcl13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
SotalolSotalol Hcl13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
FamotidineFamotidine12suppressed
Prochlorperazine MaleateProchlorperazine Maleate12suppressed
CarisoprodolCarisoprodol11suppressed
Diltiazem 24hr ErDiltiazem Hcl11suppressed
Ezetimibe-SimvastatinEzetimibe/Simvastatin11suppressed
GemfibrozilGemfibrozil11suppressed
Hydralazine HclHydralazine Hcl11suppressed
Solifenacin SuccinateSolifenacin Succinate11suppressed

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 $14.07 · 1 records PFIZER INC. ABRYSVO, COMIRNATY, PREVNAR 20 2
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