Gregory Rosner, M.D.
NPI 1245318765 · Surgery Physician · Cudahy, WI
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Rosner, M.D. is a Surgery Physician provider in Cudahy, WI (NPI 1245318765).
Provider details
- NPI number
- 1245318765
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 170092 (NY)
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
19 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
- 2006-11-01
- Last updated
- 2012-10-04
Frequently asked questions
- What is Gregory Rosner's NPI number?
- Gregory Rosner's National Provider Identifier (NPI) is 1245318765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Rosner's specialty?
- Gregory Rosner is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Rosner located?
- Gregory Rosner's practice location on file with NPPES is 5900 S Lake Dr., Cudahy, WI 53110-3171.
- What is Gregory Rosner's phone number?
- The practice phone number listed in the NPPES registry for Gregory Rosner is (414) 489-4190.
- Does Gregory Rosner accept Medicare?
- Gregory Rosner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Rosner's NPI active?
- Yes — Gregory Rosner's NPI (1245318765) is active in the NPPES registry as of the last update on 2012-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.