Doctor profile · Federal record

Dr. William Sumner, ARNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · Family Nurse Practitioner · Shenandoah, IA

  • NPI 1437749298
  • Accepts Medicare
  • 5 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pershing Ave
Shenandoah, IA 516012355
(712) 246-7400
Mailing address
207 S Locust St
Glenwood, IA 515341727

Credentials & registration

NPPES · NUCC
NPI registered
January 2021 — 5 yrs on file
Profile last updated
June 24, 2025
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (3)
Iowa #A166252 · Missouri #2023042385 · Nebraska #113978

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437749298. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
57
Distinct HCPCS
1
Medicare allowed
$5,425
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 57 11 $95

In context: peer comparison

Among 1 peers in this city , average services per provider: 57. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$606
Transactions
40
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 6 $220.31
Supernus Pharmaceuticals, Inc. 22 $138.01
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 5 $98.45
Teva Pharmaceuticals USA, Inc. 3 $63.29
Otsuka America Pharmaceutical, Inc. 2 $48.24
Alkermes, Inc. 2 $37.53

By nature of payment

Food and Beverage
$606

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
947
Patients
26
Total drug cost
$36,352
Drug Type Claims Patients Total cost
Bupropion Xl (Bupropion Hcl) Brand 115 12 $2,291
Levetiracetam Generic 83 0 $3,801
Quetiapine Fumarate Generic 77 0 $4,251
Divalproex Sodium Er (Divalproex Sodium) Brand 70 0 $11,835
Trazodone Hcl Generic 70 14 $1,787
Escitalopram Oxalate Generic 66 0 $429
Baclofen Generic 62 0 $1,563
Lorazepam Generic 60 0 $377
Risperidone Generic 56 0 $849
Buspirone Hcl Generic 52 0 $531

Frequently asked questions

Auto-generated from federal data
What is Dr. William Sumner's medical specialty?
Dr. William Sumner practices Family Nurse Practitioner in Shenandoah, IA.
Where does Dr. William Sumner practice?
Dr. William Sumner practices at 300 Pershing Ave, Shenandoah, IA 516012355. Office phone: 7122467400.
What is Dr. William Sumner's NPI?
Dr. William Sumner's National Provider Identifier (NPI) is 1437749298, issued by NPPES.
Does Dr. William Sumner accept Medicare assignment?
Yes. Dr. William Sumner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Sumner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.