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MRS. MERCEDES LONGSHAW MORTENSEN AGNP-C
NPI 1811660764
Nurse Practitioner - Gerontology in Salt Lake City, UT

Active since July 27, 2021PECOS EnrolledAccepts Medicare Assignment
522 E 100 S, SALT LAKE CITY, UT 84102(801) 485-5055 Get Directions Write a Review

NPPES record last updated: July 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mrs. Mercedes Longshaw Mortensen Agnp-c NPPES

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

MRS. MERCEDES LONGSHAW MORTENSEN AGNP-C (NPI 1811660764) is an individual gerontology provider in Salt Lake City, Utah, licensed in Utah (283800-4405) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS, is affiliated with Intermountain Health Alta View Hospital, and maintains a secondary practice location in Murray.

NPPES Registry Identity

NPI1811660764
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMRS. MERCEDES LONGSHAW MORTENSENCredential: AGNP-C
Location Address522 E 100 SSalt Lake City, UT 84102-1905
Mailing Address3204 S Harmony CirSalt Lake City, UT 84109-2706 · (925) 262-7059
Phone(801) 485-5055
Sole ProprietorYes
Medical School CMSUniversity Of South Alabama College Of MedicineGraduated 2021
Enumeration DateJuly 27, 2021
Last NPPES UpdateJuly 30, 2025
NPPES CertifiedJuly 30, 2025
✔ NPI 1811660764 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License✔ Licensed in UT · 283800-4405
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 283800-4405 (UT)
522 E 100 S, Salt Lake City, UT 84102
Open in Google Maps ↗

Other Names 1

Former Name (1)Mrs. Mercedes Longshaw Olsen Rn

Secondary Practice Location 1

Location 15169 S Cottonwood St Ste 500Murray, UT 84107-6770 · Phone (801) 507-5152

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Mercedes Longshaw Mortensen Agnp-c 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.

PECOS PAC ID547665440
PECOS Enrollment IDI20210816001289
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Intermountain Health Alta View Hospital

Acute Care Hospitals · Sandy, UT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number460044
Location9660 South 1300 EastSandy, UT 84094 · Salt Lake County
Emergency services Birthing friendly

Riverton Hospital

Acute Care Hospitals · Riverton, UT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number460058
Location3741 West 12600 SouthRiverton, UT 84065 · Salt Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 84102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.41 typical visit price
range $54.34 – $166.03
Typical copayment $21.10 (range $13.58 – $41.50)
Most-billed visit code 99203
Established Patient
$96.35 typical visit price
range $17.23 – $135.20
Typical copayment $24.08 (range $4.30 – $33.80)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANDRA BETHEL JENSE APRN
Nurse Practitioner (Acute Care)
522 E 100 S
SALT LAKE CITY, UT 84102
Salt Lake County (801) 485-5055
MA BO INC
Family Medicine
522 E 100 S
SALT LAKE CITY, UT 84102
Salt Lake County (801) 485-5055
MRS. COURTNEY HARPER PA-C
Physician Assistant
522 E 100 S
SALT LAKE CITY, UT 84102
Salt Lake County (801) 485-5055
KAREN FRONK AGNP, BSN, RN
Nurse Practitioner (Adult Health)
522 E 100 S
SALT LAKE CITY, UT 84102
Salt Lake County (801) 485-5055

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 Mercedes Mortensen's NPI number?

The NPI number for Mercedes Mortensen is 1811660764. It was assigned to this individual provider in the NPPES registry on July 27, 2021. The provider is also known as Mrs. Mercedes Longshaw Olsen Rn.

Where is Mercedes Mortensen located?

Mercedes Mortensen practices at 522 E 100 S, Salt Lake City, UT 84102. The listed phone number is (801) 485-5055.

What is Mercedes Mortensen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Mercedes Mortensen enrolled in Medicare?

Yes. Mercedes Mortensen 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.

What insurance does Mercedes Mortensen accept?

Health plans from Select Health list Mercedes Mortensen 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 Mercedes Mortensen affiliated with any hospitals?

According to CMS data, Mercedes Mortensen is affiliated with Intermountain Health Alta View Hospital and Riverton Hospital.

When was this NPI record last updated?

The NPPES record for Mercedes Mortensen was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.