CHICAGO CHATHAM MEDICAL ASSOCIATES
NPI 1700901576
Preventive Medicine - Public Health & General Preventive Medicine in Chicago, IL

NPI Status: Active since March 20, 2007

Contact Information

2011 E 75TH ST
SUITE 111
CHICAGO, IL
ZIP 60649
Phone: (773) 753-5800
Fax: (773) 753-8819

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  • Organization
  • Preventive Medicine
  • Public Health & General Preventive Medic...

About CHICAGO CHATHAM MEDICAL ASSOCIATES

This page provides the complete NPI Profile along with additional information for Chicago Chatham Medical Associates, a provider established in Chicago, Illinois operating as a Preventive Medicine, focusing in public health & general preventive medicine . The healthcare provider is registered in the NPI registry with number 1700901576 assigned on March 2007. The practitioner's primary taxonomy code is 2083P0901X. The provider is registered as an organization and their NPI record was last updated one year ago. Chicago Chatham Medical Associates operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Gayle Kates (Director)

NPI
1700901576
Provider Name
CHICAGO CHATHAM MEDICAL ASSOCIATES
Entity Type
Organization
Location Address
2011 E 75TH ST SUITE 111 CHICAGO, IL 60649
Location Phone
(773) 753-5800
Location Fax
(773) 753-8819
Mailing Address
6800 S CONSTANCE AVE CHICAGO, IL 60649
Mailing Phone
(773) 753-5800
Mailing Fax
(773) 753-8819
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-20-2007
Last Update Date
09-11-2025
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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

Preventive Medicine Public Health & General Preventive Medicine

Taxonomy Code
2083P0901X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

 
22080A0000XAllopathic & Osteopathic Physicians

Pediatrics
Adolescent Medicine

 
32080P0210XAllopathic & Osteopathic Physicians

Pediatrics
Pediatric Nephrology

 
4208D00000XAllopathic & Osteopathic Physicians

General Practice

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas 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. GAYLE KATES

Authorized Official Title
DIRECTOR
Authorized Official Phone
(773) 753-5800

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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 1700901576, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
7
Unchanged
Pos 3
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
5
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 0 → 0 9 → 18 → 9 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 0 + 0 + 1 + 8 + 0 + 2 + 5 + 1 + 4 + 24 = 54

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1700901576.

Other Providers at the Same Location


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

Internal Medicine (Pulmonary Disease)
2011 E 75TH ST
CHICAGO, IL 60649

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700901576, enumerated as an "organization" on March 20, 2007.

The provider is located at 2011 E 75TH ST SUITE 111 CHICAGO, IL 60649 and the phone number is (773) 753-5800.

Preventive Medicine with taxonomy code 2083P0901X and a focus in Public Health & General Preventive Medicine.