Doctor profile · Federal record

Dr. Rebecca Walker, RN, BSN, FNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Occupational Health Registered Nurse · Sioux City, IA

  • NPI 1336797018
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
814 Pierce St Ste 300
Sioux City, IA 511011058
(712) 226-2600
Mailing address
Po Box 53
Lawton, IA 510300053

Credentials & registration

NPPES · NUCC
NPI registered
August 2019 — 7 yrs on file
Profile last updated
February 9, 2022
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Iowa #A167411 · Iowa #130143

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336797018. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,312
Distinct HCPCS
10
Medicare allowed
$113,707
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 1,400 14 $0
A9585 Injection, gadobutrol, 0.1 ml 1,075 12 $0
J0897 Injection, denosumab, 1 mg 900 12 $23
36415 Insertion of needle into vein for collection of blood sample 339 224 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 313 216 $104
80053 Blood test, comprehensive group of blood chemicals 292 202 $10
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 292 205 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 262 192 $73
81001 Manual urinalysis test with examination using microscope, automated 113 88 $3
84443 Blood test, thyroid stimulating hormone (tsh) 106 79 $16

In context: peer comparison

Among 23 peers in this city , average services per provider: 104. This provider delivers 61× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$595
Transactions
36
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 11 $182.44
Novo Nordisk Inc 6 $90.95
PFIZER INC. 4 $63.42
Astellas Pharma US Inc 4 $59.43
Grifols USA, LLC 2 $47.19
Actelion Pharmaceuticals US, Inc. 2 $41.62
Amgen Inc. 2 $28.78
SANOFI-AVENTIS U.S. LLC 1 $20.50
Otsuka America Pharmaceutical, Inc. 1 $18.26
Phathom Pharmaceuticals, Inc. 1 $15.65
E.R. Squibb & Sons, L.L.C. 1 $13.72
Takeda Pharmaceuticals U.S.A., Inc. 1 $13.25

By nature of payment

Food and Beverage
$595

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
768
Patients
378
Total drug cost
$7,983
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 106 34 $1,265
Atorvastatin Calcium Generic 85 31 $1,243
Ciprofloxacin Hcl Generic 81 70 $567
Prednisone Generic 59 51 $145
Lorazepam Generic 52 13 $377
Losartan Potassium Generic 49 19 $661
Pantoprazole Sodium Generic 48 16 $746
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 43 41 $498
Potassium Chloride Generic 42 15 $567
Tramadol Hcl Generic 42 18 $381

Frequently asked questions

Auto-generated from federal data
What is Dr. Rebecca Walker's medical specialty?
Dr. Rebecca Walker practices Family Nurse Practitioner in Sioux City, IA.
Where does Dr. Rebecca Walker practice?
Dr. Rebecca Walker practices at 814 Pierce St Ste 300, Sioux City, IA 511011058. Office phone: 7122262600.
What is Dr. Rebecca Walker's NPI?
Dr. Rebecca Walker's National Provider Identifier (NPI) is 1336797018, issued by NPPES.
Does Dr. Rebecca Walker accept Medicare assignment?
Yes. Dr. Rebecca Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rebecca Walker commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadobutrol, 0.1 ml (HCPCS A9585); Injection, denosumab, 1 mg (HCPCS J0897). Source: CMS Medicare Physician & Other Practitioners file.