Doctor profile · Federal record

Dr. Rachael Ziska, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Fitchburg, WI

  • NPI 1104204247
  • Accepts Medicare
  • MIPS 80.2 / 100 · 2023
  • 8 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3051 Cahill Main
Fitchburg, WI 537117109
(608) 661-7200

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
October 11, 2018
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #6950621

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104204247. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,004
Distinct HCPCS
10
Medicare allowed
$49,290
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 212 93 $8
80048 Blood test, basic group of blood chemicals (calcium, total) 85 48 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 83 66 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 72 51 $114
G0008 Administration of influenza virus vaccine 53 53 $22
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 51 51 $69
80061 Blood test, lipids (cholesterol and triglycerides) 50 48 $13
99215 Established patient office or other outpatient visit, 40-54 minutes 47 36 $169
83036 Hemoglobin a1c level 43 29 $10
84443 Blood test, thyroid stimulating hormone (tsh) 42 36 $16

In context: peer comparison

Among 1 peers in Fitchburg Internal Medicine Physician, average services per provider: 43. This provider delivers 23× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
934
Patients
227
Total drug cost
$59,809
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 104 31 $1,164
Rosuvastatin Calcium Generic 92 25 $1,424
Amlodipine Besylate Generic 89 26 $720
Levothyroxine Sodium Generic 87 29 $1,415
Omeprazole Generic 76 26 $1,083
Trazodone Hcl Generic 76 15 $917
Losartan Potassium Generic 61 20 $955
Irbesartan Generic 51 11 $665
Lisinopril Generic 50 15 $423
Fluticasone Propionate Generic 48 17 $587

Frequently asked questions

Auto-generated from federal data
What is Dr. Rachael Ziska's medical specialty?
Dr. Rachael Ziska practices Internal Medicine Physician in Fitchburg, WI.
Where does Dr. Rachael Ziska practice?
Dr. Rachael Ziska practices at 3051 Cahill Main, Fitchburg, WI 537117109. Office phone: 6086617200.
What is Dr. Rachael Ziska's NPI?
Dr. Rachael Ziska's National Provider Identifier (NPI) is 1104204247, issued by NPPES.
Does Dr. Rachael Ziska accept Medicare assignment?
Yes. Dr. Rachael Ziska accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rachael Ziska commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, basic group of blood chemicals (calcium, total) (HCPCS 80048); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.