Thomas Gennarelli, MD
NPI 1891746756 · Neurological Surgery Physician · Milwaukee, WI
Enrolled with Medicare as Order and Referring Only - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Gennarelli, MD is a Neurological Surgery Physician provider in Milwaukee, WI (NPI 1891746756).
Provider details
- NPI number
- 1891746756
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 41258 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs 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
- 2006-05-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Gennarelli's NPI number?
- Thomas Gennarelli's National Provider Identifier (NPI) is 1891746756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Gennarelli's specialty?
- Thomas Gennarelli is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Gennarelli located?
- Thomas Gennarelli's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522.
- What is Thomas Gennarelli's phone number?
- The practice phone number listed in the NPPES registry for Thomas Gennarelli is (414) 805-3666.
- Does Thomas Gennarelli accept Medicare?
- Thomas Gennarelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Gennarelli's NPI active?
- Yes — Thomas Gennarelli's NPI (1891746756) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.