Casey Birschbach, MD
NPI 1366005928 · Internal Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Casey Birschbach, MD is a Internal Medicine Physician provider in Madison, WI (NPI 1366005928).
Provider details
- NPI number
- 1366005928
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2021-03455 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,075 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 147 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $85 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 85 | $15 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 58 | $13 |
| Blood Test, Comprehensive Group of Blood Chemicals |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 80 | 28 |
| Amlodipine Besylate | 76 | 29 |
| Levothyroxine Sodium | 72 | 26 |
| Atorvastatin Calcium | 71 | 24 |
| Lisinopril | 44 | 14 |
| Omeprazole | 42 | 15 |
| Oxycodone Hcl |
Practice location
Mailing address
Additional practice locations (3)
- 101 Manning DrChapel Hill, NC 27514-4220Phone: (984) 974-1000
- 100 Eastowne DrChapel Hill, NC 27514-2286Phone: (984) 974-4462
- 102 Mason Farm RdChapel Hill, NC 27599-4220Phone: (984) 974-4462Fax: (919) 843-9355
Registry dates
- Enumerated
- 2019-04-19
- Last updated
- 2024-06-27
- Certified
- 2024-06-27
Frequently asked questions
- What is Casey Birschbach's NPI number?
- Casey Birschbach's National Provider Identifier (NPI) is 1366005928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Casey Birschbach's specialty?
- Casey Birschbach is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Casey Birschbach located?
- Casey Birschbach's practice location on file with NPPES is 4410 Regent St, Madison, WI 53705-4901.
- What is Casey Birschbach's phone number?
- The practice phone number listed in the NPPES registry for Casey Birschbach is (608) 233-9746.
- Does Casey Birschbach accept Medicare?
- Casey Birschbach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Casey Birschbach's NPI active?
- Yes — Casey Birschbach's NPI (1366005928) is active in the NPPES registry as of the last update on 2024-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.