Doctor profile · Federal record

Dr. Karen Thomas, MD

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Lone Tree, CO

  • NPI 1821124413
  • Accepts Medicare
  • 24 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10240 Park Meadows Dr
Lone Tree, CO 801245425
(303) 338-4545
Mailing address
10350 E Dakota Ave
Denver, CO 802471314

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
June 4, 2021
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State licenses (2)
Colorado #0055647 · Massachusetts #222630
Medicaid
CO #58202749

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821124413. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$103
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 3 $102.59

By nature of payment

Food and Beverage
$103

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,568
Patients
560
Total drug cost
$153,877
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 219 76 $3,894
Metoprolol Tartrate Generic 182 60 $1,988
Furosemide Generic 181 70 $2,175
Atorvastatin Calcium Generic 136 45 $2,411
Spironolactone Generic 116 38 $1,137
Losartan Potassium Generic 100 38 $1,161
Amiodarone Hcl Generic 95 31 $2,799
Lisinopril Generic 91 35 $1,049
Pradaxa (Dabigatran Etexilate Mesylate) Brand 80 33 $25,002
Eliquis (Apixaban) Brand 70 21 $81,981

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Thomas's medical specialty?
Dr. Karen Thomas practices Cardiovascular Disease Physician in Lone Tree, CO.
Where does Dr. Karen Thomas practice?
Dr. Karen Thomas practices at 10240 Park Meadows Dr, Lone Tree, CO 801245425. Office phone: 3033384545.
What is Dr. Karen Thomas's NPI?
Dr. Karen Thomas's National Provider Identifier (NPI) is 1821124413, issued by NPPES.
Does Dr. Karen Thomas accept Medicare assignment?
Yes. Dr. Karen Thomas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.