Doctor profile · Federal record

Dr. MARC GUNDERSON, MD

Psychiatry Physician (CMS: PSYCHIATRY) · Psychiatry Physician · MILWAUKEE, WI

  • NPI 1194067561
  • Accepts Medicare
  • 13 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1155 N MAYFAIR RD
MILWAUKEE, WI 532263462
(414) 955-5990
fax (414) 955-6282
Additional location
1129 Macklind Ave
Saint Louis, MO 631101440
(314) 534-0200
Additional location
W129N7055 Northfield Dr
Menomonee Falls, WI 530510538
(262) 253-5400
fax (262) 253-3399

Credentials & registration

NPPES · NUCC
NPI registered
March 2013 — 13 yrs on file
Profile last updated
June 16, 2020
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State licenses (2)
Wisconsin #62813-20 · Missouri #2017014153
Medicaid
WI #1194067561

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194067561. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
79
Distinct HCPCS
1
Medicare allowed
$9,155
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 79 21 $116

In context: peer comparison

Among 39 peers in this city , average services per provider: 68. This provider delivers 1.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Supernus Pharmaceuticals, Inc. 1 $20.22

By nature of payment

Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
851
Patients
184
Total drug cost
$35,173
Drug Type Claims Patients Total cost
Clonazepam Generic 95 21 $1,362
Bupropion Xl (Bupropion Hcl) Brand 94 21 $3,630
Escitalopram Oxalate Generic 83 25 $1,610
Mirtazapine Generic 75 18 $1,940
Quetiapine Fumarate Generic 75 14 $1,883
Trazodone Hcl Generic 70 16 $886
Lamotrigine Generic 58 18 $1,047
Alprazolam Generic 54 12 $131
Aripiprazole Generic 42 12 $2,547
Diazepam Generic 39 0 $418