Doctor profile · Federal record

Dr. Marina Horschak, FNP

Nurse Practitioner · Family Nurse Practitioner · South Milwaukee, WI

  • NPI 1134548274
  • 12 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2985 S Chicago Ave
South Milwaukee, WI 531723133
(414) 762-7322
fax (414) 762-7327
Additional location
3860 S 27Th St
Milwaukee, WI 532211307
(414) 489-4190
fax (414) 489-4015
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
November 17, 2023
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Wisconsin #5526 · Wisconsin #5526-33
Medicaid
WI #100039112

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134548274. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
14
Distinct HCPCS
1
Medicare allowed
$1,016
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 14 14 $73

In context: peer comparison

Among 4 peers in this city , average services per provider: 46. This provider delivers 0.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Marina Horschak's medical specialty?
Dr. Marina Horschak practices Nurse Practitioner in South Milwaukee, WI.
Where does Dr. Marina Horschak practice?
Dr. Marina Horschak practices at 2985 S Chicago Ave, South Milwaukee, WI 531723133. Office phone: 4147627322.
What is Dr. Marina Horschak's NPI?
Dr. Marina Horschak's National Provider Identifier (NPI) is 1134548274, issued by NPPES.
What procedures does Dr. Marina Horschak commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.