Roland Williby, M.D.
NPI 1235439514 · Obstetrics & Gynecology Physician · Elgin, IL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roland Williby, M.D. is a Obstetrics & Gynecology Physician provider in Elgin, IL (NPI 1235439514).
Provider details
- NPI number
- 1235439514
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036122702 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-11-02
- Last updated
- 2021-04-05
- Certified
- 2021-04-05
Frequently asked questions
- What is Roland Williby's NPI number?
- Roland Williby's National Provider Identifier (NPI) is 1235439514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roland Williby's specialty?
- Roland Williby is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Roland Williby located?
- Roland Williby's practice location on file with NPPES is 620 Wing Street, Elgin, IL 60123.
- What is Roland Williby's phone number?
- The practice phone number listed in the NPPES registry for Roland Williby is (847) 717-6455.
- Does Roland Williby accept Medicare?
- Roland Williby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roland Williby's NPI active?
- Yes — Roland Williby's NPI (1235439514) is active in the NPPES registry as of the last update on 2021-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.