Steven Gerndt, MD
NPI 1487667549 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Green Bay, WI
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Gerndt, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Green Bay, WI (NPI 1487667549).
Provider details
- NPI number
- 1487667549
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 38744 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$93 across 2 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
Additional practice locations (1)
- 1000 N Oak AveMarshfield, WI 54449-5703Phone: (715) 387-5511
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2024-02-15
- Certified
- 2024-02-15
Frequently asked questions
- What is Steven Gerndt's NPI number?
- Steven Gerndt's National Provider Identifier (NPI) is 1487667549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Gerndt's specialty?
- Steven Gerndt is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Gerndt located?
- Steven Gerndt's practice location on file with NPPES is 720 S Webster Ave, Green Bay, WI 54301-3538.
- What is Steven Gerndt's phone number?
- The practice phone number listed in the NPPES registry for Steven Gerndt is (920) 433-9621.
- Does Steven Gerndt accept Medicare?
- Steven Gerndt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Gerndt's NPI active?
- Yes — Steven Gerndt's NPI (1487667549) is active in the NPPES registry as of the last update on 2024-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.