Chicago Gastroenterology, LLC
NPI 1366792426 · Gastroenterology Physician · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chicago Gastroenterology, LLC is a Gastroenterology Physician organization in Chicago, IL (NPI 1366792426).
Provider details
- NPI number
- 1366792426
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Samuel Castillo, Member(847) 708-7496
- License
- 248000667 (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
13 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
Other names (DBA / former)
- Other name
- Chicago Gi
Registry dates
- Enumerated
- 2012-09-17
- Last updated
- 2012-09-17
Frequently asked questions
- What is Chicago Gastroenterology, LLC's NPI number?
- Chicago Gastroenterology, LLC's National Provider Identifier (NPI) is 1366792426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chicago Gastroenterology, LLC?
- Chicago Gastroenterology, LLC is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Chicago Gastroenterology, LLC located?
- Chicago Gastroenterology, LLC's practice location on file with NPPES is 1431 N Western Ave, Chicago, IL 60622-1797.
- What is Chicago Gastroenterology, LLC's phone number?
- The practice phone number listed in the NPPES registry for Chicago Gastroenterology, LLC is (773) 342-6800.
- Does Chicago Gastroenterology, LLC accept Medicare?
- Chicago Gastroenterology, LLC 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 Chicago Gastroenterology, LLC?
- The authorized official listed on Chicago Gastroenterology, LLC's NPPES record is Samuel Castillo, Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chicago Gastroenterology, LLC's NPI active?
- Yes — Chicago Gastroenterology, LLC's NPI (1366792426) is active in the NPPES registry as of the last update on 2012-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.