MOUNTAINSTAR MEDICAL GROUP-ST. MARKS HOSPITAL, LLC
NPI 1073795258
Family Medicine in Salt Lake City, UT
About Mountainstar Medical Group-st. Marks Hospital, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOUNTAINSTAR MEDICAL GROUP-ST. MARKS HOSPITAL, LLC (NPI 1073795258), doing business as St. Mark's Millcreek Primary Care, is a healthcare organization registered as a family medicine in Salt Lake City, Utah and active in the NPI registry since November 2007. The organization lists Louis Joseph, Vp, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Group Practice 1
Accepted 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 Medical Group-st. Marks Hospital, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
13Medicare enrollment records show 13 clinicians reassign Medicare billing to Mountainstar Medical Group-St. Marks Hospital, LLC, which bills Medicare for the services they deliver. Of these, 13 practice within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (13)
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 Medical Group-St. Marks Hospital, LLC's NPI number?
The NPI number for Mountainstar Medical Group-St. Marks Hospital, LLC is 1073795258. It was assigned to this organization in the NPPES registry on November 29, 2007. The provider was formerly known as St. Mark's Millcreek Primary Care.
Where is Mountainstar Medical Group-St. Marks Hospital, LLC located?
Mountainstar Medical Group-St. Marks Hospital, LLC is located at 348 E 4500 S Ste 300, Salt Lake City, UT 84107. The listed phone number is (801) 266-2777.
What is Mountainstar Medical Group-St. Marks Hospital, LLC's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mountainstar Medical Group-St. Marks Hospital, LLC enrolled in Medicare?
Yes. Mountainstar Medical Group-St. Marks Hospital, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mountainstar Medical Group-St. Marks Hospital, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 4 Medicare specialties reassign their Medicare billing to Mountainstar Medical Group-St. Marks Hospital, 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 Nurse Practitioner (6), Family Practice (4) and Internal Medicine (2). Of these, 13 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Mountainstar Medical Group-St. Marks Hospital, LLC accept?
Health plans from BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah and University of Utah Health Plans list Mountainstar Medical Group-St. Marks Hospital, 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 Medical Group-St. Marks Hospital, LLC was last updated on January 2, 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.