DR STEPHEN W HOLST MD
NPI 1043379472
Urology in Sheridan, WY

Q: What is Big Horn Urology PC's NPI number?

The NPI number for Big Horn Urology PC is 1043379472. It was assigned to this organization in the NPPES registry on December 8, 2006. The provider is also known as Dr Stephen W Holst MD.

Q: What is Big Horn Urology PC's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Active since December 08, 2006CLIA 53D0935706 · Microscopy

340 WEST DOW STREET, SHERIDAN, WY 82801(307) 672-1806(307) 672-1808 Get Directions Write a Review

NPPES record last updated: June 10, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr Stephen W Holst Md NPPES

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

DR STEPHEN W HOLST MD (NPI 1043379472) is a healthcare organization registered as an urology in Sheridan, Wyoming and active in the NPI registry since December 2006. The organization holds a CLIA Microscopy certificate valid through November 3, 2027 and lists Stephen Wilson Holst, President Big Horn Urology Pc, as its authorized official.

NPPES Registry Identity

NPI1043379472

Entity TypeOrganization

Primary Taxonomy208800000X

Legal Business NameBIG HORN UROLOGY PC

Location Address340 WEST DOW STREETSheridan, WY 82801

Mailing Address340 West Dow StreetSheridan, WY 82801 · (307) 672-1806 · Fax (307) 672-1808

Phone(307) 672-1806

Fax(307) 672-1808

Organization SubpartNo

Authorized OfficialStephen Wilson HolstPresident Big Horn Urology Pc · (307) 672-1806

Enumeration DateDecember 8, 2006

Last NPPES UpdateJune 10, 2010

✔ NPI 1043379472 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Licenses✔ Licensed in WY · 5434A✔ Licensed in CO · 2157

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

340 WEST DOW STREET, Sheridan, WY 82801

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Other Names 1

Other NameDr Stephen W Holst Md

Other Identifiers 4

Other306592WY · Blue Cross Blue Shield

Medicare UPINE80847

Medicaid109407600WY

Medicare ID-Type UnspecifiedW9922WY

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr Stephen W Holst Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Dr Stephen W Holst MD, which bills Medicare for the services this clinician delivers.

Clinician (1)

Stephen Holst, MD

Urology

NPI 1295896751

340 WEST DOW STREET
Sheridan, WY 82801

(307) 672-1806

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 53D0935706

Big Horn Urology PC · Sheridan, WY

Active · expires Nov 3, 2027

CLIA Number53D0935706

Laboratory TypePhysician Office

Certificate Effective DateNovember 4, 2025

Certificate Expiration DateNovember 3, 2027

Laboratory DirectorStephen W. Holst

Laboratory Phone(307) 672-1806

Laboratory LocationBig Horn Urology PC340 West Dow, Sheridan, WY 82801

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Big Horn Urology PC's NPI number?

The NPI number for Big Horn Urology PC is 1043379472. It was assigned to this organization in the NPPES registry on December 8, 2006. The provider is also known as Dr Stephen W Holst MD.

Where is Big Horn Urology PC located?

Big Horn Urology PC is located at 340 West Dow Street, Sheridan, WY 82801. The listed phone number is (307) 672-1806.

What is Big Horn Urology PC's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Big Horn Urology PC enrolled in Medicare?

Yes. Big Horn Urology PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Big Horn Urology PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Urology) reassigns their Medicare billing to Big Horn Urology PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Big Horn Urology PC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 53D0935706) is associated with this NPI, valid through November 3, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Big Horn Urology PC accept?

Health plans from Blue Cross Blue Shield of Wyoming list Big Horn Urology PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Big Horn Urology PC was last updated on June 10, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.