Healthcare provider profile · identity verified

Gregory Daniel Spin, D.O.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · ROSEVILLE, CA · NPI 1114977386

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 Gregory Daniel Spin, D.O. received $571.76 in general payments during 2025 across 13 reported records.

Novartis Pharmaceuticals Corporation accounted for 43.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

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 68 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$571.76

13 reported records · 8 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
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $249.5743.6%52025
Apellis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $91.8316.1%12025
NxStage Medical, Inc. Unresolved — no canonical attribution shown $91.7316.0%22025
SCPHARMACEUTICALS INC. Unresolved — no canonical attribution shown $45.718.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $27.794.9%12025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $26.584.7%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $21.673.8%12025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $16.883.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$571.7613

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 $214.59 4 2025
Source payment records
Vanrafia
Normalized: vanrafia
Drug Novartis Pharmaceuticals Corporation $161.18 2 2025
Source payment records
NXSTAGE SYSTEM ONE
Normalized: nxstage system one
Device NxStage Medical, Inc. $91.73 2 2025
Source payment records
FUROSCIX
Normalized: furoscix
Drug SCPHARMACEUTICALS INC. $45.71 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $27.79 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $21.67 1 2025
Source payment records
Auryxia
Normalized: auryxia
Drug AKEBIA THERAPEUTICS INC $16.88 1 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $16.88 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
Ozempic
ozempic
2025 Ozempic 2024 68 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
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
68 17

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
CalcitriolCalcitriol363121
Amlodipine BesylateAmlodipine Besylate26376
Losartan PotassiumLosartan Potassium21171
CarvedilolCarvedilol18058
FurosemideFurosemide13154
LisinoprilLisinopril13147
Hydralazine HclHydralazine Hcl12645
JardianceEmpagliflozin10031
Terazosin HclTerazosin Hcl9529
Atorvastatin CalciumAtorvastatin Calcium8929
SpironolactoneSpironolactone8027
AllopurinolAllopurinol7021
OzempicSemaglutide6817
Levothyroxine SodiumLevothyroxine Sodium6419
ClinisolParenteral Amino Acid 15% No.552suppressed
LokelmaSodium Zirconium Cyclosilicate4818
Metoprolol TartrateMetoprolol Tartrate4813
Lanthanum CarbonateLanthanum Carbonate4516
Clonidine HclClonidine Hcl4413
CephalexinCephalexin4132
Vitamin D2Ergocalciferol (Vitamin D2)3718
Pravastatin SodiumPravastatin Sodium33suppressed
VelphoroSucroferric Oxyhydroxide33suppressed
FamotidineFamotidine3111
FinasterideFinasteride29suppressed
Escitalopram OxalateEscitalopram Oxalate28suppressed
JanuviaSitagliptin Phosphate28suppressed
Metoprolol SuccinateMetoprolol Succinate27suppressed
Tamsulosin HclTamsulosin Hcl27suppressed
FebuxostatFebuxostat26suppressed
Cinacalcet HclCinacalcet Hcl24suppressed
Calcium AcetateCalcium Acetate22suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine21suppressed
Benazepril HclBenazepril Hcl18suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate18suppressed
VeltassaPatiromer Calcium Sorbitex18suppressed
BumetanideBumetanide17suppressed
ColchicineColchicine16suppressed
Doxycycline HyclateDoxycycline Hyclate1614
FarxigaDapagliflozin Propanediol15suppressed
EplerenoneEplerenone14suppressed
GabapentinGabapentin14suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
Potassium ChloridePotassium Chloride14suppressed
PrednisonePrednisone14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Potassium Citrate ErPotassium Citrate13suppressed
ClonidineClonidine12suppressed
ParicalcitolParicalcitol12suppressed

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 $571.76 · 13 records Novartis Pharmaceuticals Corporation Auryxia, FUROSCIX, Fabhalta, NXSTAGE SYSTEM ONE, Ozempic, TAVNEOS, Vafseo, Vanrafia 1
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