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

Individual provider Certified Registered Nurse Anesthetist · NPI 1699015164

Nathan Collin Froehner, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Mason City, Iowa. Qualified in 2012, 14 years ago. Practices with North Iowa Mercy Clinics, a 300-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
14
Licensed in
IA
In the registry since
2013
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

1000 4th St SW
Mason City, IA 50401-2800
Phone: (641) 428-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 121445 (IA)

Record details

NPI number1699015164
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedFebruary 21, 2013
Last updated in NPPESFebruary 21, 2013

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice North Iowa Mercy Clinics — 300 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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