Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mariah Lynn O'Connell, MSN, FNP-C

Individual provider Family Nurse Practitioner · NPI 1700572948

Mariah Lynn O'Connell, MSN, FNP-C is a Nurse Practitioner in Rochester, Minnesota. Qualified in 2022, 4 years ago. Practices with Mayo Clinic, a 4,796-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
4
Licensed in
MN
In the registry since
2023
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 420 E 1st St, Duluth, MN 55805-1901 — (218) 786-8364

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 10425 (MN)

Record details

NPI number1700572948
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , FNP-C
Sole proprietorNo
NPI enumeratedApril 12, 2023
Last updated in NPPESMarch 20, 2026
Certification dateMarch 20, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients191
Services billed 547 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Mayo Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4796 clinicians in the practice; 12 are shown here.

Other providers in Rochester