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

Mrs. Heidi Marie Farnum, APRN-CRNA

Individual provider Nurse Practitioner · NPI 1427281401

Mrs. Heidi Marie Farnum, APRN-CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Clarion, Iowa. Qualified in 2018, 8 years ago. Practices with Mason City Ambulatory Surgery Center, LLC, a 13-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa and Nebraska.

Years since qualifying
8
Licensed in
IA, NE
In the registry since
2009
Specialties on file
3
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Practice location Address checks out

1316 S Main St
Clarion, IA 50525-2019
Phone: (515) 532-2811
Fax: (515) 532-9245
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 N 30th St # 3700, Omaha, NE 68131-2137 — (402) 280-4351

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence D153765 (IA)
Nurse Practitioner Taxonomy 363L00000X · Licence 111068 (NE)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 101495 (NE)

Record details

NPI number1427281401
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN-CRNA
Sole proprietorNo
NPI enumeratedAugust 25, 2009
Last updated in NPPESDecember 19, 2019
Certification dateDecember 19, 2019

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Mason City Ambulatory Surgery Center, Llc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients178
Services billed 199 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.

Colleagues at Mason City Ambulatory Surgery Center, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 13 clinicians in the practice; 3 are shown here.

Other providers in Clarion