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

Stephen Jerome Portz, MD

Individual provider Interventional Cardiology Physician · NPI 1811933500

Stephen Jerome Portz, MD is a Cardiovascular Disease (Cardiology) in Las Vegas, Nevada. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 1982, 44 years ago. Practices with Intermountain Medical Holdings Nevada Inc, a 308-clinician group and accepts Medicare assignment. Licensed in Nevada.

Years since qualifying
44
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
NV
In the registry since
2006
Specialties on file
2
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

3131 La Canada St Ste 140
Las Vegas, NV 89169-2579
Phone: (702) 933-9400
Fax: (702) 933-9444
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 5648 (NV)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 5648 (NV)

Record details

NPI number1811933500
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2006
Last updated in NPPESOctober 13, 2025
Certification dateOctober 13, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 1982 (44 years in practice)
Group practice Intermountain Medical Holdings Nevada Inc — 308 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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