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

Karlee L Messner, RN

Individual provider Critical Care Medicine Registered Nurse · NPI 1134007149

Karlee L Messner, RN is a Nurse Practitioner in Pittsburgh, Pennsylvania. Qualified in 2025, 1 year ago. Licensed in Pennsylvania.

Years since qualifying
1
Licensed in
PA
In the registry since
2025
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

200 Lothrop St
Pittsburgh, PA 15213-2536
Phone: (412) 647-2345
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence SP034398 (PA)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence RN675724 (PA)

Record details

NPI number1134007149
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedAugust 26, 2025
Last updated in NPPESDecember 5, 2025
Certification dateDecember 5, 2025
Mailing address2308 Old Route 422 E, Fenelton, PA 16034-9725

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Accepts Medicare assignment Not indicated

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