DR. MARK D. SIMS MD
NPI 1376806745
Hospitalist in Salt Lake City, UT
About Dr. Mark D. Sims Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK D. SIMS MD (NPI 1376806745) is an individual hospitalist provider in Salt Lake City, Utah, licensed in Utah (12229890-1205) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with University Of Utah Hospitals And Clinics, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark D. Sims Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Mark Sims reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Salt Lake City, UT 84103
- Reassigned Medicare billing, Utah enrollment
- 3,691 clinicians in this Medicare group
Salt Lake City, UT 84132
- Reassigned Medicare billing, Utah enrollment
- 2,620 clinicians in this Medicare group
Salt Lake City, UT 84132
- Reassigned Medicare billing, Utah enrollment
- 751 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Utah Hospitals And Clinics
Acute Care Hospitals · Salt Lake City, UTIntermountain Medical Center
Acute Care Hospitals · Murray, UTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 84132 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SALT LAKE CITY, UT 84132
SALT LAKE CITY, UT 84132
SALT LAKE CITY, UT 84132
SALT LAKE CITY, UT 84132
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 Mark Sims's NPI number?
The NPI number for Mark Sims is 1376806745. It was assigned to this individual provider in the NPPES registry on June 20, 2012.
Where is Mark Sims located?
Mark Sims practices at 30 N 1900 E Rm 4c104, Salt Lake City, UT 84132. The listed phone number is (801) 585-1686.
What is Mark Sims's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Mark Sims enrolled in Medicare?
Yes. Mark Sims is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mark Sims's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Sims reassigns Medicare benefits to 3 organizations: Ihc Health Services Inc (Salt Lake City, UT), University Of Utah Adult Services (Salt Lake City, UT) and University Of Utah Pediatric Services (Salt Lake City, UT). Each 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 Mark Sims's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Sims accept?
Health plans from Select Health list Mark Sims 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.
Is Mark Sims affiliated with any hospitals?
According to CMS data, Mark Sims is affiliated with University Of Utah Hospitals And Clinics and Intermountain Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Sims was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 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.
# Dr. Mark D. Sims, MD · NPI 1376806745
Hospitalist physician in Salt Lake City, Utah. Individual provider, active in the CMS NPPES registry since June 20, 2012.
## Identity
- **NPI:** 1376806745 (Entity type: Individual)
- **Enumerated:** June 20, 2012
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 12229890-1205 (Utah)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 30 N 1900 E RM 4C104, Salt Lake City, UT 84132-0002
- **Phone:** (801) 585-1686
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Ihc Health Services Inc (NPI 1063941250, Salt Lake City, UT); University Of Utah Adult Services (NPI 1003210808, Salt Lake City, UT); University Of Utah Pediatric Services (NPI 1568826055, Salt Lake City, UT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Columbia School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** September 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1376806745) · Data from the CMS NPPES public registry.