Doctor profile · Federal record

Dr. William Wagner, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Green Bay, WI

  • NPI 1215355607
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2845 Greenbrier RD
Green Bay, WI 543116519
(920) 288-8000
Mailing address
1035 Kepler Dr
Green Bay, WI 543118320

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
April 11, 2024
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Wisconsin #70854 · Massachusetts #273848
Medicaid
WI #100091617

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215355607. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
295
Distinct HCPCS
4
Medicare allowed
$45,099
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 186 181 $163
99284 Emergency department visit with moderate level of medical decision making 57 57 $114
99291 Critical care, first 30-74 minutes 36 35 $201
99283 Emergency department visit with low level of medical decision making 16 15 $67

In context: peer comparison

Among 12 peers in Green Bay Emergency Medicine Physician, average services per provider: 64. This provider delivers 4.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
180
Patients
179
Total drug cost
$2,499
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 32 32 $250
Morphine Sulfate Generic 28 27 $89
Cephalexin Generic 24 24 $294
Prednisone Generic 21 21 $51
Ondansetron Odt (Ondansetron) Brand 18 18 $147
Doxycycline Monohydrate Generic 17 17 $353
Methylprednisolone Generic 14 14 $113
Levofloxacin Generic 13 13 $86
Naloxone Hcl Generic 13 13 $1,116

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Wagner's medical specialty?
Dr. William Wagner practices Emergency Medicine Physician in Green Bay, WI.
Where does Dr. William Wagner practice?
Dr. William Wagner practices at 2845 Greenbrier RD, Green Bay, WI 543116519. Office phone: 9202888000.
What is Dr. William Wagner's NPI?
Dr. William Wagner's National Provider Identifier (NPI) is 1215355607, issued by NPPES.
Does Dr. William Wagner accept Medicare assignment?
Yes. Dr. William Wagner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Wagner commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.