Gregory Halenda, MD
NPI 1154697175 · Pediatric Anesthesiology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Halenda, MD is a Pediatric Anesthesiology Physician provider in Milwaukee, WI (NPI 1154697175).
Provider details
- NPI number
- 1154697175
- Entity type
- Individual
- Primary specialty
- Pediatric Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 69125 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 9200 W Wisconsin AveMilwaukee, WI 53226-3522Phone: (414) 805-8700Fax: (414) 259-1522
Registry dates
- Enumerated
- 2012-03-23
- Last updated
- 2024-03-11
- Certified
- 2024-03-11
Frequently asked questions
- What is Gregory Halenda's NPI number?
- Gregory Halenda's National Provider Identifier (NPI) is 1154697175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Halenda's specialty?
- Gregory Halenda is listed in the NPPES registry with a primary specialty of Pediatric Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Halenda located?
- Gregory Halenda's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226.
- What is Gregory Halenda's phone number?
- The practice phone number listed in the NPPES registry for Gregory Halenda is (414) 266-3560.
- Does Gregory Halenda accept Medicare?
- Gregory Halenda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Halenda's NPI active?
- Yes — Gregory Halenda's NPI (1154697175) is active in the NPPES registry as of the last update on 2024-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.