Karl Hummel, RN
NPI 1497629752 · Adult Psychiatric/Mental Health Registered Nurse · Madison, WI
Karl Hummel, RN is a Adult Psychiatric/Mental Health Registered Nurse provider in Madison, WI (NPI 1497629752).
Provider details
- NPI number
- 1497629752
- Entity type
- Individual
- Primary specialty
- Adult Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 110678130 (WI)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-09-30
- Last updated
- 2025-09-30
- Certified
- 2025-09-30
Frequently asked questions
- What is Karl Hummel's NPI number?
- Karl Hummel's National Provider Identifier (NPI) is 1497629752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Hummel's specialty?
- Karl Hummel is listed in the NPPES registry with a primary specialty of Adult Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Karl Hummel located?
- Karl Hummel's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Karl Hummel's phone number?
- The practice phone number listed in the NPPES registry for Karl Hummel is (608) 263-6400.
- Is Karl Hummel's NPI active?
- Yes — Karl Hummel's NPI (1497629752) is active in the NPPES registry as of the last update on 2025-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.