Doctor profile · Federal record

Dr. Joann Ermer-Seltun, ARNP

Nurse Practitioner · Mason City, IA

  • NPI 1801998570
  • Accepts Medicare
  • 27 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1000 4Th St Sw
Mason City, IA 504012800
(641) 428-8001
fax (641) 428-6160
Additional location
1010 4Th St Sw, Suite Whc
Mason City, IA 504012857
(641) 422-6000
fax (641) 422-6007
Mailing address
621 S Illinois Ave, Suite 103
Mason City, IA 504015489

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
July 9, 2025
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Iowa #072091
Medicaid
IA #0428862

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801998570. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
373
Distinct HCPCS
5
Medicare allowed
$21,597
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 146 95 $52
99212 Established patient office or other outpatient visit, 10-19 minutes 77 35 $28
99214 Established patient office or other outpatient visit, 30-39 minutes 63 42 $77
99215 Established patient office or other outpatient visit, 40-54 minutes 54 48 $114
17250 Application of chemical to stop tissue regrowth in wound 33 11 $28

In context: peer comparison

Among 6 peers in Mason City Nurse Practitioner, average services per provider: 152. This provider delivers 2.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$238
Transactions
8
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
ConvaTec INC. 1 $77.00
Kerecis Limited 2 $39.01
Smith+Nephew, INC. 1 $32.87
Urgo Medical North America, LLC 1 $31.13
Astellas Pharma US INC 1 $20.42
Boston Scientific Corporation 1 $20.40
Coloplast Corp 1 $17.59

By nature of payment

Food and Beverage
$238

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
272
Patients
75
Total drug cost
$85,678
Drug Type Claims Patients Total cost
Myrbetriq (Mirabegron) Brand 113 22 $70,559
Solifenacin Succinate Generic 88 19 $6,618
Estradiol Generic 60 34 $8,371
Doxycycline Monohydrate Generic 11 0 $131

Frequently asked questions

Auto-generated from federal data
What is Dr. Joann Ermer-Seltun's medical specialty?
Dr. Joann Ermer-Seltun practices Nurse Practitioner in Mason City, IA.
Where does Dr. Joann Ermer-Seltun practice?
Dr. Joann Ermer-Seltun practices at 1000 4Th St Sw, Mason City, IA 504012800. Office phone: 6414288001.
What is Dr. Joann Ermer-Seltun's NPI?
Dr. Joann Ermer-Seltun's National Provider Identifier (NPI) is 1801998570, issued by NPPES.
Does Dr. Joann Ermer-Seltun accept Medicare assignment?
Yes. Dr. Joann Ermer-Seltun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joann Ermer-Seltun commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.