Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Thomas Daniel Callahan V, MD

Individual provider Internal Medicine Physician · NPI 1023004520

Thomas Daniel Callahan V, MD is a Cardiac Electrophysiology in Cleveland, Ohio. Graduated from Eastern Virginia Medical School in 1999, 27 years ago. Practices with Cleveland Clinic, a 6,935-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
27
Trained at
Eastern Virginia Medical School
Licensed in
OH
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9500 Euclid Ave
Cleveland, OH 44195-0001
Phone: (800) 223-2273
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 35082810 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35082810 (OH)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 35082810 (OH)

Record details

NPI number1023004520
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2005
Last updated in NPPESDecember 10, 2008
Mailing address6000 W Creek Rd, Suite 10, Independence, OH 44131-2139

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1999 (27 years in practice)
Group practice Cleveland Clinic — 6935 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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