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

Mason Umphreys

Individual provider Certified Registered Nurse Anesthetist · NPI 1407691553

Mason Umphreys is a Certified Registered Nurse Anesthetist (CRNA) in Iowa City, Iowa. Qualified in 2025, 1 year ago. Practices with State University of Iowa, a 1,885-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
1
Licensed in
IA
In the registry since
2024
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Practice location Address checks out

200 Hawkins Dr
Iowa City, IA 52242-1009
Phone: (319) 356-1616
Fax: (319) 384-6265
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 701 W Forevergreen Rd, North Liberty, IA 52317-9848 — (319) 356-1616

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence D184677 (IA)

Record details

NPI number1407691553
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 29, 2024
Last updated in NPPESJuly 8, 2025
Certification dateJuly 8, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice State University Of Iowa — 1885 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Iowa City