Karl Greene, MD
NPI 1376535492 · Neurological Surgery Physician · Pleasant Prairie, WI
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Greene, MD is a Neurological Surgery Physician provider in Pleasant Prairie, WI (NPI 1376535492).
Provider details
- NPI number
- 1376535492
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43655 (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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$198,159 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-16
- Last updated
- 2024-06-27
- Certified
- 2024-06-27
Frequently asked questions
- What is Karl Greene's NPI number?
- Karl Greene's National Provider Identifier (NPI) is 1376535492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Greene's specialty?
- Karl Greene is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Greene located?
- Karl Greene's practice location on file with NPPES is 9555 76th St, Pleasant Prairie, WI 53158-1984.
- What is Karl Greene's phone number?
- The practice phone number listed in the NPPES registry for Karl Greene is (262) 577-8000.
- Does Karl Greene accept Medicare?
- Karl Greene is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Greene's NPI active?
- Yes — Karl Greene's NPI (1376535492) is active in the NPPES registry as of the last update on 2024-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.