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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

STEPHEN R BIENZ MD
NPI 1851381834
Internal Medicine - Rheumatology in Nampa, ID

Active since October 21, 2005
4400 E FLAMINGO AVE, NAMPA, ID 83687(208) 288-4970(208) 288-4990 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Stephen R Bienz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN R BIENZ MD (NPI 1851381834) is an individual rheumatology provider in Nampa, Idaho, licensed in Idaho (M4472) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1851381834
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameSTEPHEN R BIENZCredential: MD
Location Address4400 E FLAMINGO AVENampa, ID 83687-9203
Mailing Address217 W Georgia Ave, Suite 115Nampa, ID 83686-6811 · (208) 463-3000 · Fax (208) 463-3034
Phone(208) 288-4970
Fax(208) 288-4990
Sole ProprietorNo
Enumeration DateOctober 21, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1851381834 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in ID · M4472✔ Licensed in UT · 1654451205✔ Licensed in WA · MD00036459
Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

4400 E FLAMINGO AVE, Nampa, ID 83687
Open in Google Maps ↗

Other Identifiers 4

Other000010004875ID · Blue Shield
OtherJ3979ID · Blue Cross
Other000010004876ID · Blue Shield
Other38737ID · Blue Cross

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATHY A DUFUR PT ATC
Physical Therapist
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 288-4970
MICHELLE L BJORNSON OT
Occupational Therapist
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 288-4970
STACY A HARMON OT
Occupational Therapist
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 288-4970
IDAHO VASCULAR INSTITUTE PLLC
Radiology (Vascular & Interventional Radiology)
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 288-4620
SALTZER MEDICAL GROUP PA
Durable Medical Equipment & Medical Supplies
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 288-4970
MERCY PHYSICIAN GROUP, INC.
Durable Medical Equipment & Medical Supplies
4400 E FLAMINGO AVE, SUITE 301
NAMPA, ID 83687
Canyon County (208) 465-6970
TREASURE VALLEY SURGERY CENTER NAMPA LP
Clinic/Center (Ambulatory Surgical)
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 463-4600
MR. CHARLES JASON ANSTRAND PA-C
Physician Assistant (Medical)
4400 E FLAMINGO AVE
NAMPA, ID 83687
Canyon County (208) 367-6099

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Bienz's NPI number?

The NPI number for Stephen Bienz is 1851381834. It was assigned to this individual provider in the NPPES registry on October 21, 2005.

Where is Stephen Bienz located?

Stephen Bienz practices at 4400 E Flamingo Ave, Nampa, ID 83687. The listed phone number is (208) 288-4970.

What is Stephen Bienz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

When was this NPI record last updated?

The NPPES record for Stephen Bienz was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.