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

Karl P Undesser, MD

Individual provider Clinical Cardiac Electrophysiology Physician · NPI 1013961242

Karl P Undesser, MD is a Cardiac Electrophysiology in Caldwell, Idaho. Graduated from University of Texas Medical School at San Antonio in 1989, 37 years ago. Practices with West Valley Medical Group Specialty Services LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
37
Trained at
University of Texas Medical School at San Antonio
Licensed in
ID
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1906 Fairview Ave Ste 230
Caldwell, ID 83605-5432
Phone: (208) 795-5073
Fax: (208) 402-3181
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence M6986 (ID)

Record details

NPI number1013961242
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 20, 2006
Last updated in NPPESJanuary 27, 2022
Certification dateNovember 30, 2020
Mailing addressPo Box 742941, Atlanta, GA 30374-2941

Medicare enrollment

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

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 1989 (37 years in practice)
Group practice West Valley Medical Group Specialty Services Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount