Mark D. Sims, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

12229890-1205 Issued in UT

Practice address

30 N 1900 E RM 4C104
Salt Lake City, UT 84132-0002

Phone

(801) 585-1686

NPI assigned

Jun 20, 2012

Last updated

Sep 22, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in UT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hospitalist

Education

University of Missouri, Columbia School of Medicine, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Utah Adult ServicesGroup PAC ID 0941525273, 1,758 clinicians

Ihc Health Services IncGroup PAC ID 1850209420, 3,948 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Intermountain Health Hospice - Salt Lake Hospice, South Jordan, UT, CCN 461503
• Intermountain Medical Center Hospital, Murray, UT, CCN 460010

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Ihc Health Services Inc

  • Multi-Specialty Clinic/Center
  • Sandy, UT
  • NPI 1942325154
  Medicare reassignment Care Compare group NPD
• University of Utah Adult Services

  • General Practice Physician
  • Salt Lake City, UT
  • NPI 1114321981
  Medicare reassignment Care Compare group
• University of Utah Pediatric Services

  dba Department of Pediatrics

  • Pediatrics Physician
  • Salt Lake City, UT
  • NPI 1487018974
  Medicare reassignment
• Ihc Health Services Inc

  dba Sanpete Hospitalist

  • Hospitalist Physician
  • Mt Pleasant, UT
  • NPI 1164871471
  NPD
• Ihc Health Services, Inc.

  dba St George Adolescent Partial Hospitalization

  • Psychiatry Physician
  • St George, UT
  • NPI 1023843844
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Ihc Health Services Inc

  dba Intermountain Health Hospice Fillmore

  • Community Based Hospice Care Agency
  • South Jordan, UT
  • NPI 1720153711
  Care Compare affiliation
• Ihc Health Services, Inc.

  dba Intermountain Health Intermountain Medical Center

  • General Acute Care Hospital
  • Murray, UT
  • NPI 1043220650
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1340150400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790035200000",
    "number": "1376806745",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30 N 1900 E RM 4C104",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841320002",
            "telephone_number": "801-585-1686"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "30 N 1900 E RM 4C104",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841320002",
            "telephone_number": "801-585-1686"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1245 16th St Ste 125",
            "address_purpose": "LOCATION",
            "city": "Santa Monica",
            "state": "CA",
            "postal_code": "904041240",
            "country_code": "US",
            "telephone_number": "310-315-8900",
            "fax_number": "310-315-8902",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1250 16th St # C2304",
            "address_purpose": "LOCATION",
            "city": "Santa Monica",
            "state": "CA",
            "postal_code": "904041249",
            "country_code": "US",
            "telephone_number": "310-319-4698",
            "fax_number": "310-319-4908",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIMS",
        "first_name": "MARK",
        "middle_name": "D.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2012-06-20",
        "last_updated": "2026-09-22",
        "certification_date": "2026-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A129202",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A129202",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "UT",
            "license": "12229890-1205",
            "primary": true
        },
        {
            "code": "207RH0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "UT",
            "license": "12229890-1205",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "msims510580@direct.med.utah.edu",
            "affiliation": "Y",
            "affiliationName": "University of Utah",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "50 N Medical Dr",
            "city": "Salt Lake City",
            "state": "UT",
            "country_code": "US",
            "postal_code": "841320100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kimberly Sara Tonin Simpson, APRN
• Matthew T. Simpson, MD
• Rachel Gartell Simpson, MD
• Robert I Simpson, MD
• Amanda Darlene Sims
• Rebecca Lefevre Sims
• Su-Leing Sin
• Jennifer R Sinclair
• Jeffrey Sindt, MD
• Jill Sindt, MD

• Hospitalist Physician in Salt Lake City, UT
• Providers in Salt Lake City, UT by specialty
• Hospitalist Physician in Utah

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.