Doctor profile · Federal record

Dr. Caroline McMahon, ARNP

Nurse Practitioner · Iowa City, IA

  • NPI 1811657133
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 Hawkins Dr
Iowa City, IA 522421009
(319) 356-4141

Credentials & registration

NPPES · NUCC
NPI registered
December 2021 — 5 yrs on file
Profile last updated
February 23, 2022
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Iowa #A164834

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811657133. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
178
Distinct HCPCS
2
Medicare allowed
$22,792
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 92 56 $169
99292 Critical care, each additional 30 minutes 86 25 $85

In context: peer comparison

Among 35 peers in Iowa City Nurse Practitioner, average services per provider: 72. This provider delivers 2.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caroline McMahon's medical specialty?
Dr. Caroline McMahon practices Nurse Practitioner in Iowa City, IA.
Where does Dr. Caroline McMahon practice?
Dr. Caroline McMahon practices at 200 Hawkins Dr, Iowa City, IA 522421009. Office phone: 3193564141.
What is Dr. Caroline McMahon's NPI?
Dr. Caroline McMahon's National Provider Identifier (NPI) is 1811657133, issued by NPPES.
Does Dr. Caroline McMahon accept Medicare assignment?
Yes. Dr. Caroline McMahon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caroline McMahon commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Critical care (HCPCS 99292). Source: CMS Medicare Physician & Other Practitioners file.