STEPHEN G. RUBY M.D.
NPI 1902806805
Pathology - Anatomic Pathology & Clinical Pathology in Tinley Park, IL

NPI Status: Active since July 21, 2005

Contact Information

17148 HARLEM AVE
TINLEY PARK, IL
ZIP 60477
Phone: (708) 429-1200

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  • Individual
  • Male
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About STEPHEN RUBY

This page provides the complete NPI Profile along with additional information for Stephen Ruby, a provider established in Tinley Park, Illinois with a medical specialization in Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1902806805 assigned on July 2005. The practitioner's primary taxonomy code is 207ZP0102X with license number 036072956 (IL). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1902806805
Provider Name
STEPHEN G. RUBY M.D.
Gender
Male
Entity Type
Individual
Location Address
17148 HARLEM AVE TINLEY PARK, IL 60477
Location Phone
(708) 429-1200
Mailing Address
1860 PAYSPHERE CIR CHICAGO, IL 60674
Mailing Phone
(630) 469-2000
Is Sole Proprietor?
No
Enumeration Date
07-21-2005
Last Update Date
01-10-2020
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
036072956
License State
IL
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

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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 1902806805, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
9
Unchanged
Pos 3
0
Doubled → 0
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
Check
5
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 8 → 16 → 7 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 1 + 6 + 0 + 1 + 2 + 8 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1902806805.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Family Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Family Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Family Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Internal Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Internal Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Internal Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477
Internal Medicine
17148 HARLEM AVE
TINLEY PARK, IL 60477

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902806805, enumerated as an "individual" on July 21, 2005.

The provider is located at 17148 HARLEM AVE TINLEY PARK, IL 60477 and the phone number is (708) 429-1200.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.