Doctor profile · Federal record

Dr. Casey Birschbach, MD

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

  • NPI 1366005928
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
4410 Regent St
Madison, WI 537054901
(608) 233-9746
fax (608) 236-1981
Additional location
100 Eastowne Dr
Chapel Hill, NC 275142286
(984) 974-4462
Additional location
101 Manning Dr
Chapel Hill, NC 275144220
(984) 974-1000
Show 1 more location
Additional location
102 Mason Farm RD
Chapel Hill, NC 275994220
(984) 974-4462
fax (919) 843-9355

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
June 27, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
North Carolina #2021-03455

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366005928. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
282
Distinct HCPCS
10
Medicare allowed
$15,927
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 68 64 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 55 50 $121
36415 Insertion of needle into vein for collection of blood sample 42 37 $8
G0008 Administration of influenza virus vaccine 25 25 $29
90662 Influenza vaccine split virus, preservative free 24 24 $72
80053 Blood test, comprehensive group of blood chemicals 17 16 $10
83036 Hemoglobin a1c level 15 15 $10
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test 13 11 $6
81001 Manual urinalysis test with examination using microscope, automated 12 12 $3
82306 Vitamin d-3 level 11 11 $29

In context: peer comparison

Among 76 peers in Madison Internal Medicine Physician, average services per provider: 80. This provider delivers 3.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
61
Patients
24
Total drug cost
$1,039
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 23 13 $270
Atorvastatin Calcium Generic 16 0 $521
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 11 11 $70
Losartan Potassium Generic 11 0 $177

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Casey Birschbach's medical specialty?
Dr. Casey Birschbach practices Internal Medicine Physician in Madison, WI.
Where does Dr. Casey Birschbach practice?
Dr. Casey Birschbach practices at 4410 Regent St, Madison, WI 537054901. Office phone: 6082339746.
What is Dr. Casey Birschbach's NPI?
Dr. Casey Birschbach's National Provider Identifier (NPI) is 1366005928, issued by NPPES.
Does Dr. Casey Birschbach accept Medicare assignment?
Yes. Dr. Casey Birschbach accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Casey Birschbach commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.