Katie Williams, M.D. PH.D.
NPI 1811216716 · Clinical Genetics (M.D.) Physician · Viroqua, WI
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katie Williams, M.D. PH.D. is a Clinical Genetics (M.D.) Physician provider in Viroqua, WI (NPI 1811216716).
Provider details
- NPI number
- 1811216716
- Entity type
- Individual
- Primary specialty
- Clinical Genetics (M.D.) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D. PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 56966-20 (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 tenure38% of score
16 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)
- 600 Highland AveMadison, WI 53792-2059Phone: (608) 263-6601
Registry dates
- Enumerated
- 2010-05-18
- Last updated
- 2022-09-27
- Certified
- 2022-09-27
Frequently asked questions
- What is Katie Williams's NPI number?
- Katie Williams's National Provider Identifier (NPI) is 1811216716, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katie Williams's specialty?
- Katie Williams is listed in the NPPES registry with a primary specialty of Clinical Genetics (M.D.) Physician (Allopathic & Osteopathic Physicians).
- Where is Katie Williams located?
- Katie Williams's practice location on file with NPPES is 507 S Main St, Viroqua, WI 54665-2059.
- What is Katie Williams's phone number?
- The practice phone number listed in the NPPES registry for Katie Williams is (608) 637-4202.
- Does Katie Williams accept Medicare?
- Katie Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katie Williams's NPI active?
- Yes — Katie Williams's NPI (1811216716) is active in the NPPES registry as of the last update on 2022-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.