Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROGER A GUNN MD
NPI 1558345124
Pathology - Clinical Pathology/Laboratory Medicine in Sioux City, IA

Q: What is Roger Gunn's NPI number?

The NPI number for Roger Gunn is 1558345124. It was assigned to this individual provider in the NPPES registry on December 6, 2005.

Q: What is Roger Gunn's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.

Q: When was this NPI record last updated?

The NPPES record for Roger Gunn was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 06, 2005

801 5TH ST, SIOUX CITY, IA 51101(712) 279-2372 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Roger A Gunn Md NPPES

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

DR. ROGER A GUNN MD (NPI 1558345124) is an individual clinical pathology/laboratory medicine provider in Sioux City, Iowa, licensed in Iowa (22334) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1558345124

Entity TypeIndividualMale

Primary Taxonomy207ZP0105X

Provider Legal NameDR. ROGER A GUNNCredential: MD

Location Address801 5TH STSioux City, IA 51101-1394

Mailing AddressPo Box 1463Sioux City, IA 51102-1463 · (712) 279-2372 · Fax (712) 279-5631

Phone(712) 279-2372

Sole ProprietorNo

Enumeration DateDecember 6, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1558345124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Clinical Pathology/Laboratory MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0105X

Licenses✔ Licensed in IA · 22334✔ Licensed in SD · 3935

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

801 5TH ST, Sioux City, IA 51101

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Other Identifiers 4

Other23528IA · Wellmark Blx

Medicaid1035287IN

Other0005660SC · Wellmark Blx Sd Dunes

Medicaid0035287IA

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.

MS. KRISTI JO HANSEN P.A.

Physician Assistant

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2512

KIRSTEN MARIE NEDVED

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 294-7020

NICOLE MARIE KASSING

Physical Therapy Assistant

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 233-5129

MARK EDWARD DAVIS CNP

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

DR. BRETT C. BIEBER PHARM.D. (RPH)

Pharmacist

801 5TH ST, MERCY MEDICAL CENTER - MAIN PHARMACY
SIOUX CITY, IA 51101

Woodbury County (712) 279-5992

GINGER DAWN HAMILTON FNP

Nurse Practitioner

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

DEBORAH CARTER CRNA

Nurse Anesthetist, Certified Registered

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2505

DR. PETER JON ANDERSON M.D.

Internal Medicine

801 5TH ST
SIOUX CITY, IA 51101

Woodbury County (712) 279-2010

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 Roger Gunn's NPI number?

The NPI number for Roger Gunn is 1558345124. It was assigned to this individual provider in the NPPES registry on December 6, 2005.

Where is Roger Gunn located?

Roger Gunn practices at 801 5th St, Sioux City, IA 51101. The listed phone number is (712) 279-2372.

What is Roger Gunn's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.

When was this NPI record last updated?

The NPPES record for Roger Gunn was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.