Healthcare provider profile · identity verified

Lin W Clark, M.D.

Internal Medicine · TUCSON, AZ · NPI 1396830477

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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

Brand	Generic	Claims	Beneficiaries
Atorvastatin Calcium	Atorvastatin Calcium	375	199
Losartan Potassium	Losartan Potassium	294	136
Lisinopril	Lisinopril	277	135
Levothyroxine Sodium	Levothyroxine Sodium	252	131
Amlodipine Besylate	Amlodipine Besylate	250	122
Gabapentin	Gabapentin	227	98
Metformin Hcl	Metformin Hcl	199	94
Albuterol Sulfate Hfa	Albuterol Sulfate	154	74
Omeprazole	Omeprazole	147	71
Rosuvastatin Calcium	Rosuvastatin Calcium	120	61
Ozempic	Semaglutide	119	37
Hydrochlorothiazide	Hydrochlorothiazide	115	53
Tamsulosin Hcl	Tamsulosin Hcl	107	49
Sertraline Hcl	Sertraline Hcl	99	41
Pantoprazole Sodium	Pantoprazole Sodium	97	47
Metoprolol Succinate	Metoprolol Succinate	93	43
Trazodone Hcl	Trazodone Hcl	93	42
Furosemide	Furosemide	87	45
Simvastatin	Simvastatin	85	43
Prednisone	Prednisone	83	64
Alendronate Sodium	Alendronate Sodium	73	38
Potassium Chloride	Potassium Chloride	69	33
Duloxetine Hcl	Duloxetine Hcl	68	33
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	68	28
Metoprolol Tartrate	Metoprolol Tartrate	67	30
Tramadol Hcl	Tramadol Hcl	67	41
Ibuprofen	Ibuprofen	66	26
Fluticasone Propionate	Fluticasone Propionate	63	39
Montelukast Sodium	Montelukast Sodium	62	33
Carvedilol	Carvedilol	61	35
Jardiance	Empagliflozin	58	31
Eliquis	Apixaban	57	21
Famotidine	Famotidine	57	33
Metformin Hcl Er	Metformin Hcl	57	35
Azithromycin	Azithromycin	52	44
Zolpidem Tartrate	Zolpidem Tartrate	52	16
Pravastatin Sodium	Pravastatin Sodium	50	26
Meloxicam	Meloxicam	47	25
Hydroxyzine Hcl	Hydroxyzine Hcl	46	21
Quetiapine Fumarate	Quetiapine Fumarate	46	16
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	44	25
Pioglitazone Hcl	Pioglitazone Hcl	43	22
Allopurinol	Allopurinol	42	21
Humulin N	Insulin Nph Human Isophane	42	12
Baclofen	Baclofen	39	25
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	39	16
Mirtazapine	Mirtazapine	39	23
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	39	35
Oxybutynin Chloride Er	Oxybutynin Chloride	38	19
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	36	16
Tizanidine Hcl	Tizanidine Hcl	36	18
Escitalopram Oxalate	Escitalopram Oxalate	35	18
Spironolactone	Spironolactone	35	20
Fluoxetine Hcl	Fluoxetine Hcl	34	16
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	33	15
Clopidogrel	Clopidogrel Bisulfate	32	15
Atenolol	Atenolol	31	16
Glipizide Er	Glipizide	31	16
Humulin R	Insulin Regular, Human	31	12
Triamcinolone Acetonide	Triamcinolone Acetonide	31	21
Finasteride	Finasteride	30	14
Glipizide	Glipizide	30	17
Memantine Hcl	Memantine Hcl	30	11
Venlafaxine Hcl Er	Venlafaxine Hcl	29	17
Citalopram Hbr	Citalopram Hydrobromide	28	15
Donepezil Hcl	Donepezil Hcl	28	14
Alprazolam	Alprazolam	27	17
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	27	12
Pregabalin	Pregabalin	27	17
Synthroid	Levothyroxine Sodium	27	14
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	26	18
Wixela Inhub	Fluticasone Propion/Salmeterol	26	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	17
Lorazepam	Lorazepam	24	12
Naproxen	Naproxen	24	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	24	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	24	11
Celecoxib	Celecoxib	23	12
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	23	11
Ropinirole Hcl	Ropinirole Hcl	23	suppressed
Estradiol	Estradiol	21	12
Ezetimibe	Ezetimibe	21	suppressed
Glimepiride	Glimepiride	21	12
Warfarin Sodium	Warfarin Sodium	20	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	19	12
Doxepin Hcl	Doxepin Hcl	18	suppressed
Ondansetron Hcl	Ondansetron Hcl	17	suppressed
Oxycodone Hcl	Oxycodone Hcl	17	suppressed
Terazosin Hcl	Terazosin Hcl	17	suppressed
Chlorthalidone	Chlorthalidone	16	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	16	suppressed
Methocarbamol	Methocarbamol	16	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	16	13
Bupropion Hcl Sr	Bupropion Hcl	15	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	15	15
Temazepam	Temazepam	15	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	14	14
Cephalexin	Cephalexin	14	14
Farxiga	Dapagliflozin Propanediol	14	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	14	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	14	14
Trulicity	Dulaglutide	14	suppressed
Veo Insulin Syringe	Syringe And Needle,insulin,1ml	14	suppressed
Bupropion Xl	Bupropion Hcl	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Lamotrigine	Lamotrigine	13	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Colestipol Hcl	Colestipol Hcl	12	suppressed
Fenofibrate	Fenofibrate	12	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	12	suppressed
Hydralazine Hcl	Hydralazine Hcl	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	12	suppressed
Paroxetine Hcl	Paroxetine Hcl	12	suppressed
Torsemide	Torsemide	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Amoxicillin	Amoxicillin	11	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	11	suppressed
Lovastatin	Lovastatin	11	suppressed
Meclizine Hcl	Meclizine Hcl	11	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	11	suppressed
Naratriptan Hcl	Naratriptan Hcl	11	suppressed
Testosterone Cypionate	Testosterone Cypionate	11	suppressed
Valsartan	Valsartan	11	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	11	suppressed

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.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

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

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
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