Doctor profile · Federal record

Dr. Emerlee Stilley, ARNP

Family Nurse Practitioner · Mason City, IA

  • NPI 1346229531
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 5 locations .

NPPES Updated May 11, 2026
Primary practice
520 S Pierce Ave
Mason City, IA 504012749
(641) 428-9200
fax (641) 428-9219
Additional location
1924 Superior St
Webster City, IA 505953146
(844) 474-4321
fax (515) 832-1114
Additional location
215 13Th Ave Sw
Clarion, IA 505252078
(844) 474-4321
fax (515) 532-2523
Show 2 more locations
Additional location
403 1St St Se
Belmond, IA 504211201
(641) 444-3500
fax (641) 444-5688
Additional location
840 W US Highway 18
Garner, IA 504381023
(641) 925-1500
fax (641) 925-1507
Mailing address
1316 S Main St
Clarion, IA 505252019

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
March 5, 2026
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Iowa #A113916

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346229531. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,084
Distinct HCPCS
5
Medicare allowed
$69,652
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 506 235 $77
99213 Established patient office or other outpatient visit, 20-29 minutes 235 167 $52
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 163 163 $102
93793 Anticoagulant management of patient taking warfarin 147 20 $9
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 33 31 $7

In context: peer comparison

Among 13 peers in Mason City Family Nurse Practitioner, average services per provider: 131. This provider delivers 8.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$72
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 2 $39.27
Lilly USA, LLC 1 $17.59
Dexcom, INC. 1 $15.38

By nature of payment

Food and Beverage
$72

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,066
Patients
693
Total drug cost
$87,585
Drug Type Claims Patients Total cost
Losartan Potassium Generic 339 114 $5,734
Atorvastatin Calcium Generic 295 97 $5,371
Levothyroxine Sodium Generic 207 61 $3,690
Metoprolol Succinate Generic 165 61 $4,755
Amlodipine Besylate Generic 131 49 $1,741
Hydrochlorothiazide Generic 116 43 $830
Simvastatin Generic 116 37 $1,486
Furosemide Generic 115 39 $797
Lisinopril Generic 112 37 $1,602
Metformin Hcl ER (Metformin Hcl) Brand 96 34 $1,953

Frequently asked questions

Auto-generated from federal data
What is Dr. Emerlee Stilley's medical specialty?
Dr. Emerlee Stilley practices Family Nurse Practitioner in Mason City, IA.
Where does Dr. Emerlee Stilley practice?
Dr. Emerlee Stilley practices at 520 S Pierce Ave, Mason City, IA 504012749. Office phone: 6414289200.
What is Dr. Emerlee Stilley's NPI?
Dr. Emerlee Stilley's National Provider Identifier (NPI) is 1346229531, issued by NPPES.
What procedures does Dr. Emerlee Stilley commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.