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MOUNTAINSTAR SPECIALTY SERVICES LLC
NPI 1265638357
Surgery in Salt Lake City, UT

Active since June 25, 2007
1250 E 3900 S, STE 460, SALT LAKE CITY, UT 84124(801) 262-3564(801) 262-3613 Get Directions Write a Review

NPPES record last updated: August 29, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 29, 2023, Jan 2, 2023, Oct 30, 2020 (3 updates tracked since 2020).

About Mountainstar Specialty Services Llc NPPES

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

MOUNTAINSTAR SPECIALTY SERVICES LLC (NPI 1265638357) is a healthcare organization registered as a surgery in Salt Lake City, Utah and active in the NPI registry since June 2007. The organization lists Louis Joseph, Vp, as its authorized official.

NPPES Registry Identity

NPI1265638357
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameMOUNTAINSTAR SPECIALTY SERVICES LLC
Location Address1250 E 3900 S, STE 460Salt Lake City, UT 84124-1348
Mailing Address2000 Health Park DrBrentwood, TN 37027-4525 · (615) 373-7406 · Fax (866) 346-1426
Phone(801) 262-3564
Fax(801) 262-3613
Organization SubpartNo
Authorized OfficialLouis JosephVp · (615) 373-7630
Enumeration DateJune 25, 2007
Last NPPES UpdateAugust 29, 20233 updates tracked since enumeration
NPPES CertifiedAugust 29, 2023
✔ NPI 1265638357 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
1250 E 3900 S, Salt Lake City, UT 84124
Open in Google Maps ↗

Other Identifiers 1

Medicaid1265638357UT

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 BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah and more.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)

Mountainstar Specialty Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

20

Medicare enrollment records show 20 clinicians reassign Medicare billing to Mountainstar Specialty Services LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 20 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 6

Orthopedic Surgery10
Nurse Practitioner4
General Surgery3
Family Practice1
Internal Medicine1
Neurosurgery1

Clinicians, nearest first (20)

Jennifer Rehbein, MD
General Surgery
NPI 1134618374
1250 E 3900 S STE 460
Salt Lake City, UT 84124
(801) 262-3564
✔ PECOS✔ Accepts MedicareSame address
Mikayla Boggs, FNP-C
Nurse Practitioner
NPI 1578447520
1250 E 3900 S STE 460
Salt Lake City, UT 84124
(801) 262-3564
✔ PECOS✔ Accepts Medicare2.1 mi
David Holt, MD
Orthopedic Surgery
NPI 1669616249
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare2.5 mi
James Pingree, MD
Neurosurgery
NPI 1730249582
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare2.5 mi
Sundi Brown, DNP
Nurse Practitioner
NPI 1437849213
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare3.9 mi
Jessica Persson
Nurse Practitioner
NPI 1144049321
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare3.9 mi
Enrique Feria-Arias, M.D.
Orthopedic Surgery
NPI 1033473574
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare4.1 mi
Jakub Sikora-Klak, MD
Orthopedic Surgery
NPI 1124447172
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare4.1 mi
Robert Bourne, MD
Internal Medicine
NPI 1487646998
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 262-8486
✔ PECOS✔ Accepts Medicare4.1 mi
Jeffrey Jackson, MD
Orthopedic Surgery
NPI 1033123179
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare4.1 mi
Oliver Nikolaus, MD
Orthopedic Surgery
NPI 1700149572
1160 E 3900 S STE 5000
Salt Lake City, UT 84124
(801) 261-7479
✔ PECOS✔ Accepts Medicare4.1 mi
Angelo Chachas, MD
General Surgery
NPI 1194726232
1250 E 3900 S STE 460
Salt Lake City, UT 84124
(801) 262-3564
✔ PECOS✔ Accepts Medicare4.2 mi
Spencer Amundsen, M.D.
Orthopedic Surgery
NPI 1841517257
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Justin Atherton, DO
General Surgery
NPI 1386876167
96 E KIMBALLS LN STE 306
Draper, UT 84020
(801) 999-2432
✔ PECOS✔ Accepts Medicare8.8 mi
James Brewster, DO
Orthopedic Surgery
NPI 1407248990
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Richard Mackey, MD
Orthopedic Surgery
NPI 1992923874
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Stuart Marshall, MD
Orthopedic Surgery
NPI 1447204821
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Andrea Matich, M.D.
Family Practice
NPI 1902092133
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Brian Powell, MD
Orthopedic Surgery
NPI 1194011130
96 E KIMBALLS LN STE 207
Draper, UT 84020
(801) 576-2300
✔ PECOS✔ Accepts Medicare8.8 mi
Alexa Nickel, APRN
Nurse Practitioner
NPI 1811488976
1200 E 3900 S UNIT G175
Salt Lake City, UT 84124
(801) 268-7405
✔ PECOS✔ Accepts Medicare9.3 mi

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 Mountainstar Specialty Services LLC's NPI number?

The NPI number for Mountainstar Specialty Services LLC is 1265638357. It was assigned to this organization in the NPPES registry on June 25, 2007.

Where is Mountainstar Specialty Services LLC located?

Mountainstar Specialty Services LLC is located at 1250 E 3900 S Ste 460, Salt Lake City, UT 84124. The listed phone number is (801) 262-3564.

What is Mountainstar Specialty Services LLC's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mountainstar Specialty Services LLC enrolled in Medicare?

Yes. Mountainstar Specialty Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mountainstar Specialty Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 20 clinicians in 6 Medicare specialties reassign their Medicare billing to Mountainstar Specialty Services 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 Orthopedic Surgery (10), Nurse Practitioner (4) and General Surgery (3). Of these, 1 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mountainstar Specialty Services LLC accept?

Health plans from BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah and University of Utah Health Plans list Mountainstar Specialty Services 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 Mountainstar Specialty Services LLC was last updated on August 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.