Doctor profile · Federal record

Dr. Keelyn Wallenfang, APNP

Nurse Practitioner · Family Nurse Practitioner · Appleton, WI

  • NPI 1669198313
  • Accepts Medicare
  • 4 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1818 N Meade St
Appleton, WI 549113454
(920) 731-8900
fax (920) 738-5369
Additional location
2502 S Ashland Ave
Green Bay, WI 543045252
(920) 496-4700

Credentials & registration

NPPES · NUCC
NPI registered
October 2022 — 4 yrs on file
Profile last updated
December 22, 2022
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Wisconsin #12184

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669198313. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
122
Distinct HCPCS
2
Medicare allowed
$11,412
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 100 95 $101
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 22 12 $60

In context: peer comparison

Among 40 peers in Appleton Nurse Practitioner, average services per provider: 87. This provider delivers 1.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,294
Transactions
10
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 7 $1,226.71
Edwards Lifesciences Corporation 1 $26.38
AstraZeneca Pharmaceuticals Lp 1 $24.29
E.R. Squibb & Sons, L.L.C. 1 $16.65

By nature of payment

Food and Beverage
$645
Travel and Lodging
$633
Education
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
805
Patients
399
Total drug cost
$93,245
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 113 50 $2,586
Metoprolol Succinate Generic 89 47 $2,338
Amlodipine Besylate Generic 82 46 $654
Furosemide Generic 59 28 $347
Losartan Potassium Generic 58 29 $676
Lisinopril Generic 55 28 $538
Ezetimibe Generic 50 26 $2,350
Eliquis (Apixaban) Brand 49 21 $52,665
Nitroglycerin Generic 44 37 $494
Spironolactone Generic 43 18 $312

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Keelyn Wallenfang's medical specialty?
Dr. Keelyn Wallenfang practices Nurse Practitioner in Appleton, WI.
Where does Dr. Keelyn Wallenfang practice?
Dr. Keelyn Wallenfang practices at 1818 N Meade St, Appleton, WI 549113454. Office phone: 9207318900.
What is Dr. Keelyn Wallenfang's NPI?
Dr. Keelyn Wallenfang's National Provider Identifier (NPI) is 1669198313, issued by NPPES.
Does Dr. Keelyn Wallenfang accept Medicare assignment?
Yes. Dr. Keelyn Wallenfang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keelyn Wallenfang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.