Lucas Fass
NPI 1427613793 · Gastroenterology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lucas Fass is a Gastroenterology Physician provider in Madison, WI (NPI 1427613793).
Provider details
- NPI number
- 1427613793
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 81575-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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)
- 749 University Row Ste 200Madison, WI 53705-1465Phone: (608) 263-0572
Registry dates
- Enumerated
- 2019-05-02
- Last updated
- 2025-06-09
- Certified
- 2025-06-09
Frequently asked questions
- What is Lucas Fass's NPI number?
- Lucas Fass's National Provider Identifier (NPI) is 1427613793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lucas Fass's specialty?
- Lucas Fass is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Lucas Fass located?
- Lucas Fass's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-1465.
- What is Lucas Fass's phone number?
- The practice phone number listed in the NPPES registry for Lucas Fass is (608) 628-3664.
- Does Lucas Fass accept Medicare?
- Lucas Fass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lucas Fass's NPI active?
- Yes — Lucas Fass's NPI (1427613793) is active in the NPPES registry as of the last update on 2025-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.