Willowbrook Medical Center Ltd.
NPI 1023231289 · Family Medicine Physician · Willowbrook, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Willowbrook Medical Center Ltd. is a Family Medicine Physician organization in Willowbrook, IL (NPI 1023231289).
Provider details
- NPI number
- 1023231289
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anthony Bilotta, President(630) 986-7501
- License
- 036078620 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Allopathic & Osteopathic Physicians
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
19 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
- 2007-04-10
- Last updated
- 2015-04-20
Frequently asked questions
- What is Willowbrook Medical Center Ltd.'s NPI number?
- Willowbrook Medical Center Ltd.'s National Provider Identifier (NPI) is 1023231289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Willowbrook Medical Center Ltd.?
- Willowbrook Medical Center Ltd. is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Willowbrook Medical Center Ltd. located?
- Willowbrook Medical Center Ltd.'s practice location on file with NPPES is 535 Plainfield Road, Willowbrook, IL 60527.
- What is Willowbrook Medical Center Ltd.'s phone number?
- The practice phone number listed in the NPPES registry for Willowbrook Medical Center Ltd. is (630) 986-7501.
- Does Willowbrook Medical Center Ltd. accept Medicare?
- Willowbrook Medical Center Ltd. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Willowbrook Medical Center Ltd.?
- The authorized official listed on Willowbrook Medical Center Ltd.'s NPPES record is Anthony Bilotta, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Willowbrook Medical Center Ltd.'s NPI active?
- Yes — Willowbrook Medical Center Ltd.'s NPI (1023231289) is active in the NPPES registry as of the last update on 2015-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.