CHICAGO GI
NPI 1366792426
Internal Medicine - Gastroenterology in Chicago, IL
NPI Status: Active since September 17, 2012
Contact Information
1431 N WESTERN AVE
SUITE 133
CHICAGO, IL
ZIP 60622
Phone: (773) 342-6800
Fax: (773) 342-6332
- Organization
- Internal Medicine
- Gastroenterology
- CLIA Number: 14D2324726
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 05-29-2027
About CHICAGO GI
This page provides the complete NPI Profile along with additional information for Chicago Gi, an internist established in Chicago, Illinois operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1366792426 assigned on September 2012. The practitioner's primary taxonomy code is 207RG0100X with license number 248000667 (IL). The provider is registered as an organization and their NPI record was last updated 14 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's other name is Chicago Gi. The authorized official of this NPI record is Dr. Samuel Francisco Castillo M.d. (Member)
- NPI
- 1366792426
- Provider Legal Name
- CHICAGO GASTROENTEROLOGY, LLC
- Other Organization Name
- CHICAGO GI
- Other Name Type
- Other Name (5)
- Entity Type
- Organization
- Location Address
- 1431 N WESTERN AVE SUITE 133 CHICAGO, IL 60622
- Location Phone
- (773) 342-6800
- Location Fax
- (773) 342-6332
- Mailing Address
- 1431 N WESTERN AVE SUITE 133 CHICAGO, IL 60622
- Mailing Phone
- (773) 342-6800
- Mailing Fax
- (773) 342-6332
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 09-17-2012
- Last Update Date
- 09-17-2012
- Code Navigator
An internist like Chicago Gi is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Gastroenterology
- Taxonomy Code
- 207RG0100X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 248000667
- License State
- IL
- Taxonomy Description
- An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 692861 | OTHER (01) | IL | MEDICARE |
| 1205801313 | OTHER (01) | IL | NPI |
| 1467503672 | OTHER (01) | IL | NPI |
| I17297 | OTHER (01) | IL | MEDICARE |
| 036063975 | MEDICAID (05) | IL | |
| 036122662 | MEDICAID (05) | IL |
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 14D2324726
- Facility Type
- Physician Office
- Certificate Effective Date
- May 30, 2025
- Certificate Expiration Date
- May 29, 2027
- Laboratory Director
- SHIXIONG LIAO
- Certificate Type
- Certificate of Compliance
- Certificate Type Description
- This CLIA certificate is issued to Chicago Gi after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1366792426, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
CHICAGO, IL 60622
CHICAGO, IL 60622
CHICAGO, IL 60622
CHICAGO, IL 60622
CHICAGO, IL 60622
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1366792426, enumerated as an "organization" on September 17, 2012.
The provider is located at 1431 N WESTERN AVE SUITE 133 CHICAGO, IL 60622 and the phone number is (773) 342-6800.
Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
