FKA MOUNTAIN WEST GASTROENTEROLOGY, P.C.
NPI 1255405957
Internal Medicine - Gastroenterology in St George, UT

Q: What is Utah Gastroenterology LLC's NPI number?

The NPI number for Utah Gastroenterology LLC is 1255405957. It was assigned to this organization in the NPPES registry on November 17, 2006. The provider is also known as Fka Mountain West Gastroenterology, P.C..

Q: What is Utah Gastroenterology LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 17, 2006

368 E RIVERSIDE DR, SUITE A, ST GEORGE, UT 84790(435) 673-1149(435) 673-1182 Get Directions Write a Review

NPPES record last updated: July 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 22, 2021, Oct 30, 2017, Dec 7, 2015 (3 updates tracked since 2015).

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About Fka Mountain West Gastroenterology, P.c. NPPES

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

FKA MOUNTAIN WEST GASTROENTEROLOGY, P.C. (NPI 1255405957) is a healthcare organization registered as a gastroenterology in St George, Utah and active in the NPI registry since November 2006. The organization lists Christine Morris, Corporate Administrator, as its authorized official.

NPPES Registry Identity

NPI1255405957

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameUTAH GASTROENTEROLOGY LLC

Location Address368 E RIVERSIDE DR, SUITE ASt George, UT 84790-6896

Mailing Address6360 S 3000 E, Suite 220Salt Lake City, UT 84121-6923 · (801) 944-3144 · Fax (801) 944-3180

Phone(435) 673-1149

Fax(435) 673-1182

Organization SubpartNo

Authorized OfficialChristine MorrisCorporate Administrator · (801) 944-3191

Enumeration DateNovember 17, 2006

Last NPPES UpdateJuly 22, 20213 updates tracked since enumeration

NPPES CertifiedJuly 22, 2021

✔ NPI 1255405957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

368 E RIVERSIDE DR, St George, UT 84790

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Other Names 1

Other NameFka Mountain West Gastroenterology, P.c.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare, University of Utah Health Plans.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)

Fka Mountain West Gastroenterology, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 79 clinicians reassign Medicare billing to Fka Mountain West Gastroenterology, P.C., which bills Medicare for the services they deliver. Of these, 9 practice at this address and 10 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Certified Registered Nurse Anesthetist (CRNA)38

Gastroenterology31

Nurse Practitioner7

Internal Medicine3

Nearest to this location (20)

See all 79

Tyson Amundsen, MD

Gastroenterology

NPI 1013573054

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Camryn Jones, DNP, FNP

Nurse Practitioner

NPI 1447064886

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Ashlee Walker, NP

Nurse Practitioner

NPI 1770207391

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Roger Siddoway, M.D.

Gastroenterology

NPI 1548240310

368 E RIVERSIDE DR SUITE A
St George, UT 84790

(435) 673-1149

✔ PECOSSame address

Scott Diamond, DO

Gastroenterology

NPI 1730684432

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

George Jeung, D.O.

Internal Medicine

NPI 1275982464

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Nekenzie Jones, NP

Nurse Practitioner

NPI 1649936535

368 E RIVERSIDE DR STE A
Saint George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Brien Miller, D.O.

Gastroenterology

NPI 1992066799

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Phillip Oberg, DO

Gastroenterology

NPI 1780174557

368 E RIVERSIDE DR STE A
St George, UT 84790

(435) 673-1149

✔ PECOS✔ Accepts MedicareSame address

Edward Frech, MD

Gastroenterology

NPI 1942496757

1380 E MEDICAL CENTER DR STE N1200
St George, UT 84790

(801) 507-3380

✔ PECOS✔ Accepts Medicare1.6 mi

Jennifer Kucifer, APRN- NP-BC

Nurse Practitioner

NPI 1184381303

655 W 200 N STE 100
Cedar City, UT 84720

(435) 263-0253

✔ PECOS49 mi

Matthew Rigby, CRNA

Certified Registered Nurse Anesthetist (CRNA)

NPI 1235484981

129 W LAKE MEAD PKWY SUITE B18
Henderson, NV 89015

(702) 564-4440

✔ Accepts Medicare107 mi

Jeffrey Bell, CRNA

Certified Registered Nurse Anesthetist (CRNA)

NPI 1992869598

674 S HIGHWAY 99
Fillmore, UT 84631

(435) 743-5591

✔ Accepts Medicare146 mi

Stacey Nelson, CRNA

Certified Registered Nurse Anesthetist (CRNA)

NPI 1912187329

1200 N BEAVER ST
Flagstaff, AZ 86001

(928) 779-3366

✔ Accepts Medicare168 mi

Brett Doxey, MD

Gastroenterology

NPI 1386775682

3741 W 12600 S #470
Riverton, UT 84065

(801) 727-4280

✔ PECOS✔ Accepts Medicare253 mi

Pratishtha Singh, MD

Gastroenterology

NPI 1093274987

38 W 13775 S STE 100
Draper, UT 84020

(801) 727-4280

✔ PECOS✔ Accepts Medicare253 mi

James Stewart, M.D

Internal Medicine

NPI 1104022557

1393 E SEGO LILY DR
Sandy, UT 84092

(801) 619-9000

✔ PECOS✔ Accepts Medicare258 mi

Sara Kaiser, FNP-C

Nurse Practitioner

NPI 1720768518

1393 E SEGO LILY DR
Sandy, UT 84092

(801) 509-9730

✔ PECOS258 mi

Ann Webb, FNP-C

Nurse Practitioner

NPI 1336960921

1393 E SEGO LILY DR
Sandy, UT 84092

(801) 619-9000

✔ PECOS✔ Accepts Medicare258 mi

Rebecca Voaklander

Internal Medicine

NPI 1689091977

1187 E 3900 S
Salt Lake City, UT 84124

(801) 263-3041

✔ PECOS✔ Accepts Medicare265 mi

See all 79 clinicians

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

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 Utah Gastroenterology LLC's NPI number?

The NPI number for Utah Gastroenterology LLC is 1255405957. It was assigned to this organization in the NPPES registry on November 17, 2006. The provider is also known as Fka Mountain West Gastroenterology, P.C..

Where is Utah Gastroenterology LLC located?

Utah Gastroenterology LLC is located at 368 E Riverside Dr Suite A, St George, UT 84790. The listed phone number is (435) 673-1149.

What is Utah Gastroenterology LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Utah Gastroenterology LLC enrolled in Medicare?

Yes. Utah Gastroenterology LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Utah Gastroenterology LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 79 clinicians in 4 Medicare specialties reassign their Medicare billing to Utah Gastroenterology LLC. 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 Certified Registered Nurse Anesthetist (CRNA) (38), Gastroenterology (31) and Nurse Practitioner (7). Of these, 9 practice at this address and 10 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Utah Gastroenterology LLC accept?

Health plans from Molina Healthcare and University of Utah Health Plans list Utah Gastroenterology LLC 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 Utah Gastroenterology LLC was last updated on July 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.