WATERTOWER CLINIC ASSOCIATES LTD
NPI 1003978446
Clinic/Center in Chicago, IL

NPI Status: Active since December 14, 2006

Contact Information

845 N MICHIGAN AVE
SUITE 930 E
CHICAGO, IL
ZIP 60611
Phone: (312) 944-2929
Fax: (312) 867-7841

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  • Organization
  • Clinic/Center

About WATERTOWER CLINIC ASSOCIATES LTD

This page provides the complete NPI Profile along with additional information for Watertower Clinic Associates Ltd, a provider established in Chicago, Illinois operating as a Clinic/center. The healthcare provider is registered in the NPI registry with number 1003978446 assigned on December 2006. The practitioner's primary taxonomy code is 261Q00000X. The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Dr. Paul Chris Madison Iv Md (Owner)

NPI
1003978446
Provider Name
WATERTOWER CLINIC ASSOCIATES LTD
Entity Type
Organization
Location Address
845 N MICHIGAN AVE SUITE 930 E CHICAGO, IL 60611
Location Phone
(312) 944-2929
Location Fax
(312) 867-7841
Mailing Address
845 N MICHIGAN AVE SUITE 930 E CHICAGO, IL 60611
Mailing Phone
(312) 944-2929
Mailing Fax
(312) 867-7841
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-14-2006
Last Update Date
08-22-2020
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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

Clinic/Center

Taxonomy Code
261Q00000X
Type
Ambulatory Health Care Facilities
License State
IL
Taxonomy Description
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).

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. PAUL CHRIS MADISON IV MD

Authorized Official Title
OWNER
Authorized Official Phone
(312) 944-2929

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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 1003978446, 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
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
4
Doubled → 8
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 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 8 + 7 + 1 + 6 + 4 + 8 + 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 1003978446.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Radiology (Diagnostic Ultrasound)
845 N MICHIGAN AVE, SUITE 935 EAST
CHICAGO, IL 60611
Pharmacist
845 N MICHIGAN AVE, 902 WEST
CHICAGO, IL 60611
Pharmacist
845 N MICHIGAN AVE, 902 WEST
CHICAGO, IL 60611
Plastic Surgery
845 N MICHIGAN AVE, 9TH FLOOR
CHICAGO, IL 60611
Surgery (Plastic and Reconstructive Surgery)
845 N MICHIGAN AVE, 9TH FLOOR EAST
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, SUITE 922E
CHICAGO, IL 60611
Dentist (Endodontics)
845 N MICHIGAN AVE, STE. 921-E
CHICAGO, IL 60611
Dentist (Endodontics)
845 N MICHIGAN AVE
CHICAGO, IL 60611
Dentist (Endodontics)
845 N MICHIGAN AVE, SUITE 921 E
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, WATER TOWER PLACE SUITE 976W
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, SUITE 948W
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, #953W
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, SUITE 951 W
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, #953W
CHICAGO, IL 60611
Dentist
845 N MICHIGAN AVE, SUITE #951 WEST
CHICAGO, IL 60611
Anesthesiology
845 N MICHIGAN AVE, SUITE 948 E
CHICAGO, IL 60611
Podiatrist
845 N MICHIGAN AVE, SUITE 915 W
CHICAGO, IL 60611
Surgery
845 N MICHIGAN AVE, SUITE 957W
CHICAGO, IL 60611
Surgery (Plastic and Reconstructive Surgery)
845 N MICHIGAN AVE, SUITE 957W
CHICAGO, IL 60611
Dentist (General Practice)
845 N MICHIGAN AVE, #955W
CHICAGO, IL 60611

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003978446, enumerated as an "organization" on December 14, 2006.

The provider is located at 845 N MICHIGAN AVE SUITE 930 E CHICAGO, IL 60611 and the phone number is (312) 944-2929.

Clinic/Center with taxonomy code 261Q00000X.