Doctor profile · Federal record

Dr. Korey Zellner, PA-C

Physician Assistant · Madison, WI

  • NPI 1699921015
  • Accepts Medicare
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
700 S Park St Ste A
Madison, WI 537151830
(608) 260-2900
fax (608) 260-2961

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
December 23, 2020
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Wisconsin #2323
Medicaid
WI #1699921015

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699921015. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
65
Distinct HCPCS
4
Medicare allowed
$7,088
HCPCS Description Services Patients Avg allowed
33508 Harvest of vein using an endoscope 23 23 $2
33533 Coronary artery bypass using artery graft, 1 graft 19 19 $189
33534 Coronary artery bypass using artery graft, 2 grafts 12 12 $242
33518 Coronary artery bypass using vein or artery graft, 2 grafts 11 11 $49

In context: peer comparison

Among 114 peers in Madison Physician Assistant, average services per provider: 113. This provider delivers 0.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$136
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Terumo Cardiovascular Systems Corporation 1 $136.28

By nature of payment

Food and Beverage
$136

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
277
Patients
216
Total drug cost
$7,986
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 40 40 $68
Amlodipine Besylate Generic 32 21 $132
Metoprolol Tartrate Generic 29 20 $151
Amiodarone Hcl Generic 28 28 $345
Potassium Chloride Generic 27 27 $81
Furosemide Generic 26 26 $29
Clopidogrel (Clopidogrel Bisulfate) Brand 23 12 $185
Pantoprazole Sodium Generic 19 19 $157
Warfarin Sodium Generic 17 11 $231
Methocarbamol Generic 13 12 $43

Frequently asked questions

Auto-generated from federal data
What is Dr. Korey Zellner's medical specialty?
Dr. Korey Zellner practices Physician Assistant in Madison, WI.
Where does Dr. Korey Zellner practice?
Dr. Korey Zellner practices at 700 S Park St Ste A, Madison, WI 537151830. Office phone: 6082602900.
What is Dr. Korey Zellner's NPI?
Dr. Korey Zellner's National Provider Identifier (NPI) is 1699921015, issued by NPPES.
Does Dr. Korey Zellner accept Medicare assignment?
Yes. Dr. Korey Zellner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Korey Zellner commonly perform?
Top Medicare-reported procedures in 2023: Harvest of vein using an endoscope (HCPCS 33508); Coronary artery bypass using artery graft, 1 graft (HCPCS 33533); Coronary artery bypass using artery graft, 2 grafts (HCPCS 33534). Source: CMS Medicare Physician & Other Practitioners file.