Doctor profile · Federal record

Dr. Gretchen Wheelock, ARNP

Primary Care Nurse Practitioner (CMS: Nurse Practitioner) · Adult Health Nurse Practitioner · Gerontology Nurse Practitioner · Winnebago, NE

  • NPI 1417251216
  • Accepts Medicare
  • 17 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
US Highway 77-75
Winnebago, NE 68071
(402) 878-3582
Additional location
3303 Rebecca St
Sioux City, IA 511042324
(712) 279-1759
Mailing address
3303 Rebecca St
Sioux City, IA 511042324

Credentials & registration

NPPES · NUCC
NPI registered
January 2011 — 15 yrs on file
Profile last updated
July 11, 2019
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
363LP2300X — NUCC code
State licenses (2)
Nebraska #111228 · Iowa #111097

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417251216. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
61
Distinct HCPCS
2
Medicare allowed
$2,208
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 33 18 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 28 12 $71

In context: peer comparison

Among 1 peers in Winnebago Primary Care Nurse Practitioner, average services per provider: 30. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$130
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 1 $130.41

By nature of payment

Food and Beverage
$130

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
426
Patients
24
Total drug cost
$172,402
Drug Type Claims Patients Total cost
Ozempic (Semaglutide) Brand 83 11 $82,859
Jardiance (Empagliflozin) Brand 74 13 $43,252
Levemir Flexpen (Insulin Detemir) Brand 34 0 $18,678
Metformin Hcl ER (Metformin Hcl) Brand 34 0 $242
Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) Brand 30 0 $12,138
Lisinopril Generic 28 0 $40
Losartan Potassium Generic 27 0 $94
Novolog Flexpen (Insulin Aspart) Brand 20 0 $10,927
Metformin Hcl Generic 19 0 $64
Amlodipine Besylate Generic 18 0 $40

Frequently asked questions

Auto-generated from federal data
What is Dr. Gretchen Wheelock's medical specialty?
Dr. Gretchen Wheelock practices Primary Care Nurse Practitioner in Winnebago, NE.
Where does Dr. Gretchen Wheelock practice?
Dr. Gretchen Wheelock practices at US Highway 77-75, Winnebago, NE 68071. Office phone: 4028783582.
What is Dr. Gretchen Wheelock's NPI?
Dr. Gretchen Wheelock's National Provider Identifier (NPI) is 1417251216, issued by NPPES.
Does Dr. Gretchen Wheelock accept Medicare assignment?
Yes. Dr. Gretchen Wheelock accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gretchen Wheelock commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.