Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Catherine Monhollen, APRN

Individual provider Family Nurse Practitioner · NPI 1841306537

Catherine Monhollen, APRN is a Family Nurse Practitioner in Casper, Wyoming. Licensed in Pennsylvania and Wyoming. Registered with an NPI since 2006.

Licensed in
PA, WY
In the registry since
2006
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

770 E 2nd St
Casper, WY 82601-2621 Not confirmed with CMS for 12 years — call before visiting
Phone: (307) 237-5510
Fax: (307) 237-0607
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 29952.1135 (WY)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence SP008447 (PA)

Record details

NPI number1841306537
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESMay 13, 2014

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 patients15
Services billed 20 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

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