CENTER FOR INTERNAL MEDICINE INC.
NPI 1093952756
Clinic/Center - Primary Care in Oak Lawn, IL

NPI Status: Active since January 15, 2009

Contact Information

4609 W 103RD ST
OAK LAWN, IL
ZIP 60453
Phone: (708) 425-0070
Fax: (708) 425-0304

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  • Organization
  • Clinic/Center
  • Primary Care
  • CLIA Number: 14D1094715
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 01-25-2027

About CENTER FOR INTERNAL MEDICINE INC.

This page provides the complete NPI Profile along with additional information for Center For Internal Medicine Inc., a primary care provider established in Oak Lawn, Illinois operating as a Clinic/center, focusing in primary care . The healthcare provider is registered in the NPI registry with number 1093952756 assigned on January 2009. The practitioner's primary taxonomy code is 261QP2300X. The provider is registered as an organization and their NPI record was last updated one year 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 authorized official of this NPI record is Dr. Mariusz Wojciech Gadula M.d. (President)

NPI
1093952756
Provider Name
CENTER FOR INTERNAL MEDICINE INC.
Entity Type
Organization
Location Address
4609 W 103RD ST OAK LAWN, IL 60453
Location Phone
(708) 425-0070
Location Fax
(708) 425-0304
Mailing Address
4609 W 103RD ST OAK LAWN, IL 60453
Mailing Phone
(708) 425-0070
Mailing Fax
(708) 425-0304
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-15-2009
Last Update Date
03-12-2025
Code Navigator

A primary care provider (PCP) like Center For Internal Medicine Inc. sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Clinic/Center Primary Care

Taxonomy Code
261QP2300X
Type
Ambulatory Health Care Facilities

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

 

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. MARIUSZ WOJCIECH GADULA M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(708) 425-0070

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
14D1094715
Facility Type
Physician Office
Certificate Effective Date
January 26, 2025
Certificate Expiration Date
January 25, 2027
Laboratory Director
MARIUSZ W. GADULA
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Center For Internal Medicine Inc. to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1093952756, 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.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
6
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 9 → 18 → 9 9 → 18 → 9 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 8 + 3 + 1 + 8 + 5 + 4 + 7 + 1 + 0 + 24 = 64

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.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1093952756.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Internal Medicine
4609 W 103RD ST
OAK LAWN, IL 60453

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093952756, enumerated as an "organization" on January 15, 2009.

The provider is located at 4609 W 103RD ST OAK LAWN, IL 60453 and the phone number is (708) 425-0070.

Clinic/Center with taxonomy code 261QP2300X and a focus in Primary Care.