Doctor profile · Federal record

Dr. Thomas Callahan, MD

Clinical Cardiac Electrophysiology Physician (CMS: Cardiac Electrophysiology) · Internal Medicine Physician · Cardiovascular Disease Physician · Cleveland, OH

  • NPI 1023004520
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9500 Euclid Ave
Cleveland, OH 441950001
(800) 223-2273
Mailing address
6000 W Creek RD, Suite 10
Independence, OH 441312139

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
December 10, 2008
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RC0001X — NUCC code
State license (1)
Ohio #35082810
Medicaid
OH #2472015

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023004520. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,627
Distinct HCPCS
10
Medicare allowed
$128,595
HCPCS Description Services Patients Avg allowed
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 246 106 $29
93295 Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 242 101 $35
99214 Established patient office or other outpatient visit, 30-39 minutes 179 163 $94
93248 Heart rhythm review and interpretation of continous external ekg over 8-15 days 146 139 $25
93280 Programming of dual lead pacemaker system 121 89 $36
93298 Evaluation of cardiac rhythm monitor system, remote up to 30 days 88 17 $25
93284 Programming of multiple lead implantable defibrillator system 82 47 $58
99204 New patient office or other outpatient visit, 45-59 minutes 55 55 $127
93657 Destruction of tissue of upper heart chamber through tube to treat abnormal heart rhythm 48 25 $298
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 41 41 $168

In context: peer comparison

Among 10 peers in Cleveland Clinical Cardiac Electrophysiology Physician, average services per provider: 56. This provider delivers 29× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25,529
Transactions
55
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Medtronic, INC. 20 $13,322.64
Boston Scientific Corporation 20 $9,714.93
Abbott Laboratories 5 $1,775.74
Philips North America LLC 10 $715.50

By nature of payment

Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$17,600
Travel and Lodging
$5,510
Food and Beverage
$2,419

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,191
Patients
354
Total drug cost
$606,653
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 446 123 $500,064
Metoprolol Succinate Generic 142 49 $4,388
Flecainide Acetate Generic 106 35 $9,705
Dofetilide Generic 104 40 $31,774
Metoprolol Tartrate Generic 80 31 $476
Amiodarone Hcl Generic 51 24 $1,972
Xarelto (Rivaroxaban) Brand 46 11 $52,096
Sotalol (Sotalol Hcl) Brand 39 17 $2,194
Carvedilol Generic 37 13 $573
Furosemide Generic 30 11 $212

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Callahan's medical specialty?
Dr. Thomas Callahan practices Clinical Cardiac Electrophysiology Physician in Cleveland, OH.
Where does Dr. Thomas Callahan practice?
Dr. Thomas Callahan practices at 9500 Euclid Ave, Cleveland, OH 441950001. Office phone: 8002232273.
What is Dr. Thomas Callahan's NPI?
Dr. Thomas Callahan's National Provider Identifier (NPI) is 1023004520, issued by NPPES.
Does Dr. Thomas Callahan accept Medicare assignment?
Yes. Dr. Thomas Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Callahan commonly perform?
Top Medicare-reported procedures in 2023: Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (HCPCS 93294); Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (HCPCS 93295); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.