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

ROCKY MOUNTAIN INFECTIOUS DISEASES P C
NPI 1497833180
Internal Medicine - Infectious Disease in Casper, WY

Active since November 01, 2006CLIA 53D2077631 · Certificate of Compliance
1450 E A ST, STE 1 & 2, CASPER, WY 82601(307) 234-8700(307) 234-8750 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 30, 2026, Sep 25, 2026, Mar 13, 2025 and 1 more (4 updates tracked since 2022).

About Rocky Mountain Infectious Diseases P C NPPES

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

ROCKY MOUNTAIN INFECTIOUS DISEASES P C (NPI 1497833180) is a healthcare organization registered as an infectious disease in Casper, Wyoming and active in the NPI registry since November 2006. The organization holds a CLIA Certificate of Compliance certificate valid through June 29, 2027 and lists Ghazi Antoun Ghanem, Owner, as its authorized official.

NPPES Registry Identity

NPI1497833180
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameROCKY MOUNTAIN INFECTIOUS DISEASES P C
Location Address1450 E A ST, STE 1 & 2Casper, WY 82601-2239
Mailing Address1450 E A StCasper, WY 82601-2239 · (307) 234-8700 · Fax (307) 234-8750
Phone(307) 234-8700
Fax(307) 234-8750
Organization SubpartNo
Authorized OfficialGhazi Antoun GhanemOwner · (307) 234-8700
Enumeration DateNovember 1, 2006
Last NPPES UpdateSeptember 30, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2026
✔ NPI 1497833180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in WY · 5197A
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedHome InfusionTaxonomy 251F00000X
Also ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X · License 6725430001 (WY)
1450 E A ST, Casper, WY 82601
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Other Identifiers 1

Medicaid115259900WY

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rocky Mountain Infectious Diseases P C is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateWyomingEnrollment IDO20130315000239DME · Physician - Infectious DiseaseDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Rocky Mountain Infectious Diseases P C, which bills Medicare for the services they deliver. Of these, 5 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Alexandru David, M.D.
Infectious Disease
NPI 1427202381
1450 E A ST SUITE 1
Casper, WY 82601
(307) 234-8700
✔ PECOS✔ Accepts Medicare1.0 mi
Mark Dowell, M.D.
Infectious Disease
NPI 1922186733
1450 E A ST STE 1
Casper, WY 82601
(307) 234-8700
✔ PECOS✔ Accepts Medicare1.0 mi
Marsha Johnson, FNP BC
Nurse Practitioner
NPI 1164679254
1450 E A ST
Casper, WY 82601
(307) 234-8700
✔ PECOS✔ Accepts Medicare1.0 mi
Brittani Hill
Nurse Practitioner
NPI 1831821818
3632 AMERICAN WAY STE B
Casper, WY 82604
(307) 234-6765
✔ PECOS✔ Accepts Medicare5.4 mi
Ghazi Ghanem, MD
Infectious Disease
NPI 1669540423
1450 E A ST STE 1
Casper, WY 82601
(307) 234-8700
✔ PECOS✔ Accepts Medicare7.7 mi
Martin Ellbogen, MD
Infectious Disease
NPI 1578580593
834 SHERIDAN ST
Port Townsend, WA 98368
(360) 379-2260
✔ PECOS✔ Accepts Medicare880 mi
Kara Willenburg, M.D.
Infectious Disease
NPI 1972705150
1249 15TH ST SUITE 3000
Huntington, WV 25701
(304) 691-1000
✔ PECOS✔ Accepts Medicare1,288 mi

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 of Compliance 53D2077631

Rocky Mountain Infectious Diseases · Casper, WY
Active · expires Jun 29, 2027
CLIA Number53D2077631
Laboratory TypePhysician Office
Certificate Effective DateJune 30, 2025
Certificate Expiration DateJune 29, 2027
Laboratory DirectorGhazi A. Ghanem
Laboratory Phone(307) 234-8700
Laboratory LocationRocky Mountain Infectious Diseases1450 East A Street, Casper, WY 82601
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Rocky Mountain Infectious Diseases P C's NPI number?

The NPI number for Rocky Mountain Infectious Diseases P C is 1497833180. It was assigned to this organization in the NPPES registry on November 1, 2006.

Where is Rocky Mountain Infectious Diseases P C located?

Rocky Mountain Infectious Diseases P C is located at 1450 E A St Ste 1 & 2, Casper, WY 82601. The listed phone number is (307) 234-8700.

What is Rocky Mountain Infectious Diseases P C's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Rocky Mountain Infectious Diseases P C enrolled in Medicare?

Yes. Rocky Mountain Infectious Diseases P C is registered in the Medicare PECOS enrollment system.

When is Rocky Mountain Infectious Diseases P C's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare DME enrollment for this organization (Wyoming, Physician - Infectious Disease) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Rocky Mountain Infectious Diseases P C?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Rocky Mountain Infectious Diseases P C. 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. The largest specialties are Infectious Disease (5) and Nurse Practitioner (2). Of these, 5 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Rocky Mountain Infectious Diseases P C hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 53D2077631) is associated with this NPI, valid through June 29, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Rocky Mountain Infectious Diseases P C accept?

Health plans from Blue Cross Blue Shield of Wyoming list Rocky Mountain Infectious Diseases P C 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 Rocky Mountain Infectious Diseases P C was last updated on September 30, 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.