NPPES file of Aug 9, 2026

Mercedes Longshaw Mortensen, AGNP-C

Gerontology Nurse Practitioner · Salt Lake City, UT

Mercedes Longshaw Mortensen, AGNP-C is a gerontology nurse practitioner with a practice address in Salt Lake City, Utah, and NPI 1811660764, issued on Jul 27, 2021. Check the license (Utah 283800-4405, as entered in NPPES) with the Utah board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811660764
Name
Mercedes Longshaw Mortensen
Credential
AGNP-C
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
283800-4405 UT
Self-reported in NPPES; status is on the state search
Practice location
522 E 100 S, Salt Lake City, UT 84102
Phone
(801) 485-5055
Enumerated
Jul 27, 2021
Record last updated
Jul 30, 2025
Medicare enrollment
Enrolled (PECOS I20210816001289); accepts Medicare assignment
Medical or professional school
University Of South Alabama College Of Medicine, 2021
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 522 E 100 S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karen Fronk, AGNP, BSN, RNAdult Health Nurse Practitioner1982333514
  2. Courtney Harper, PA-CPhysician Assistant1982227641
  3. Sandra Jense, APRNAcute Care Nurse Practitioner1104258763

Verify Mercedes Longshaw Mortensen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Utah board licenses this profession
    Search for license 283800-4405
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Utah license search

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93% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

93 Medicare Part D claims for 17 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Mercedes Mortensen93
  2. Specialty average1,369

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Ihc Health Services IncMurray, UT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mercedes Longshaw Mortensen among 47 gerontology nurse practitioner records in Utah

Mercedes Longshaw Mortensen, AGNP-C is one of 47 gerontology nurse practitioner records with a practice address in Utah. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 47% of them.

  • NPI issued2021 · 47% of these records are older, 36% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2021 · median 2021 among the 31 with a school on file
  • Record last updated2025 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Utah

There are 47 gerontology nurse practitioner records in Utah.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Chantel Duffey, NPMurray, UT 841071093236895
  2. Amber Lovell, NPMurray, UT 841071053897116
  3. Sandra McNicoll, APRNMurray, UT 841071073533188
  4. Brittany Steinfels, APRNMurray, UT 841071962110742
  5. Emily Van Komen, APRNMurray, UT 841071841045713
  6. Connie Syropoulos, NP-CSouth Jordan, UT 840951114319746
  7. Perrine Anderson, APRNSandy, UT 840931447222849
  8. Samantha Gajkowski, APRN, AGNP-CSalt Lake City, UT 841121043912298

Common questions

What is Mercedes Longshaw Mortensen, AGNP-C's NPI number?

Mercedes Longshaw Mortensen, AGNP-C's National Provider Identifier (NPI) is 1811660764, issued on Jul 27, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Mercedes Longshaw Mortensen, AGNP-C located?

The NPPES record lists a practice address at 522 E 100 S, Salt Lake City, UT, 84102. Phone: (801) 485-5055. Providers update this record themselves, so call before visiting.

How can I verify Mercedes Longshaw Mortensen, AGNP-C's license?

NPPES lists Utah license number 283800-4405, as entered by the provider. Search the Utah board that licenses this profession; the NPPES record confirms identity only.

How much does Mercedes Longshaw Mortensen, AGNP-C prescribe under Medicare Part D?

In 2024, Mercedes Longshaw Mortensen, AGNP-C had 93 Medicare Part D claims for 17 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.