Robert Christiansen
NPI 1508506585 · Hospitalist Physician · Hartford, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Christiansen is a Hospitalist Physician provider in Hartford, WI (NPI 1508506585).
Provider details
- NPI number
- 1508506585
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 81439 (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
4 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)
- 945 N 12th StMilwaukee, WI 53233-1305Phone: (920) 323-6855
Registry dates
- Enumerated
- 2022-03-29
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is Robert Christiansen's NPI number?
- Robert Christiansen's National Provider Identifier (NPI) is 1508506585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Christiansen's specialty?
- Robert Christiansen is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Christiansen located?
- Robert Christiansen's practice location on file with NPPES is 1032 E Sumner St, Hartford, WI 53027-1608.
- What is Robert Christiansen's phone number?
- The practice phone number listed in the NPPES registry for Robert Christiansen is (262) 673-2300.
- Does Robert Christiansen accept Medicare?
- Robert Christiansen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Christiansen's NPI active?
- Yes — Robert Christiansen's NPI (1508506585) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.