Healthcare provider profile · identity verified

Chris C Park, MD

Internal Medicine · GAITHERSBURG, MD · NPI 1649348087

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	974	320
Amlodipine Besylate	Amlodipine Besylate	353	113
Losartan Potassium	Losartan Potassium	332	107
Metformin Hcl	Metformin Hcl	288	92
Lisinopril	Lisinopril	274	90
Levothyroxine Sodium	Levothyroxine Sodium	197	63
Tamsulosin Hcl	Tamsulosin Hcl	168	57
Arexvy	Rsvpref3 Antigen/As01e/Pf	152	152
Alendronate Sodium	Alendronate Sodium	141	43
Metformin Hcl Er	Metformin Hcl	141	45
Glipizide	Glipizide	118	43
Pantoprazole Sodium	Pantoprazole Sodium	116	62
Rosuvastatin Calcium	Rosuvastatin Calcium	105	35
Simvastatin	Simvastatin	91	27
Metoprolol Tartrate	Metoprolol Tartrate	89	30
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	84	25
Hydrochlorothiazide	Hydrochlorothiazide	82	25
Jardiance	Empagliflozin	82	30
Finasteride	Finasteride	75	25
Atenolol	Atenolol	70	22
Pioglitazone Hcl	Pioglitazone Hcl	67	22
Meloxicam	Meloxicam	62	30
Gabapentin	Gabapentin	61	24
Metoprolol Succinate	Metoprolol Succinate	55	16
Albuterol Sulfate Hfa	Albuterol Sulfate	52	16
Pravastatin Sodium	Pravastatin Sodium	49	14
Shingrix	Varicella-Zoster Ge/As01b/Pf	38	36
Allopurinol	Allopurinol	36	suppressed
Azithromycin	Azithromycin	36	35
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	35	35
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	33	13
Escitalopram Oxalate	Escitalopram Oxalate	33	14
Azelastine Hcl	Azelastine Hcl	32	21
Clopidogrel	Clopidogrel Bisulfate	32	11
Montelukast Sodium	Montelukast Sodium	32	15
Pregabalin	Pregabalin	32	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	31	suppressed
Mirtazapine	Mirtazapine	31	11
Wixela Inhub	Fluticasone Propion/Salmeterol	31	12
Triamcinolone Acetonide	Triamcinolone Acetonide	30	12
Methylprednisolone	Methylprednisolone	29	28
Trazodone Hcl	Trazodone Hcl	29	16
Duloxetine Hcl	Duloxetine Hcl	28	suppressed
Pradaxa	Dabigatran Etexilate Mesylate	26	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	25	suppressed
Alvesco	Ciclesonide	24	suppressed
Spiriva Respimat	Tiotropium Bromide	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	19
Carvedilol	Carvedilol	20	suppressed
Furosemide	Furosemide	20	12
Omeprazole	Omeprazole	20	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	20	suppressed
Sertraline Hcl	Sertraline Hcl	20	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	19	suppressed
Donepezil Hcl	Donepezil Hcl	18	suppressed
Memantine Hcl	Memantine Hcl	18	suppressed
Valsartan	Valsartan	18	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	18	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	17	suppressed
Lovastatin	Lovastatin	17	suppressed
Nabumetone	Nabumetone	16	suppressed
Famotidine	Famotidine	15	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	14	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	14	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	14	suppressed
Terazosin Hcl	Terazosin Hcl	14	suppressed
Fluconazole	Fluconazole	13	suppressed
Lorazepam	Lorazepam	13	suppressed
Raloxifene Hcl	Raloxifene Hcl	13	suppressed
Humulin 70/30 Kwikpen	Insulin Nph Hum/Reg Insulin Hm	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Ozempic	Semaglutide	12	suppressed
Prednisone	Prednisone	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Spironolactone	Spironolactone	12	suppressed
Synthroid	Levothyroxine Sodium	12	suppressed
Alprazolam	Alprazolam	11	suppressed
Chlorthalidone	Chlorthalidone	11	suppressed
Ezetimibe	Ezetimibe	11	suppressed
Fentanyl	Fentanyl	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Paroxetine Hcl	Paroxetine Hcl	11	suppressed
Potassium Chloride	Potassium Chloride	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