Karl Willmann, MD
NPI 1700852217 · Anesthesiology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Willmann, MD is a Anesthesiology Physician provider in Madison, WI (NPI 1700852217).
Provider details
- NPI number
- 1700852217
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 40284 (WI)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
154 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 Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 33 | $40 |
| Anesthesia for Procedure on Upper 2/3rd of Thigh Bone01230 | 31 | $160 |
| Anesthesia for Other Procedure on Lower Leg, Ankle, and Foot Bones01480 | 19 | $147 |
| Anesthesia for Procedure on Lower 1/3rd of Thigh Bone01360 | 17 | $179 |
| Anesthesia for Procedure on Kneecap And/Or Upper Part of Lower Leg Bones01392 | 17 | $161 |
| Anesthesia for Other Procedure on Hip Joint01210 | 14 | $164 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-24
- Last updated
- 2009-04-10
Frequently asked questions
- What is Karl Willmann's NPI number?
- Karl Willmann's National Provider Identifier (NPI) is 1700852217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Willmann's specialty?
- Karl Willmann is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Willmann located?
- Karl Willmann's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792.
- What is Karl Willmann's phone number?
- The practice phone number listed in the NPPES registry for Karl Willmann is (608) 263-8100.
- Does Karl Willmann accept Medicare?
- Karl Willmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Willmann's NPI active?
- Yes — Karl Willmann's NPI (1700852217) is active in the NPPES registry as of the last update on 2009-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.