DR. TODD RUPPAR PHD, APRN
NPI 1659907418
Clinical Nurse Specialist - Gerontology in Chicago, IL

NPI Status: Active since March 12, 2020

Contact Information

600 S PAULINA ST STE 1080
CHICAGO, IL
ZIP 60612
Phone: (312) 942-6958

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Clinical Nurse Specialist
Gerontology

About TODD RUPPAR

This page provides the complete NPI Profile along with additional information for Todd Ruppar, a provider established in Chicago, Illinois with a medical specialization in Clinical Nurse Specialist, focusing in gerontology . The healthcare provider is registered in the NPI registry with number 1659907418 assigned on March 2020. The practitioner's primary taxonomy code is 364SG0600X with license number 209.018331 (IL). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI: 1659907418
Provider Name: DR. TODD RUPPAR PHD, APRN
Gender: Male
Entity Type: Individual
Location Address: 600 S PAULINA ST STE 1080 CHICAGO, IL 60612
Location Phone: (312) 942-6958
Mailing Address: 600 S PAULINA ST STE 1080 CHICAGO, IL 60612
Mailing Phone: (312) 942-6958
Is Sole Proprietor?: No
Enumeration Date: 03-12-2020
Last Update Date: 03-12-2020
Code Navigator

A Clinical Nurse Specialist (CNS) like Todd Ruppar is a type of advanced practice registered nurse (APRN) that provides direct patient care in various nursing specialties, including pediatrics or psychiatric-mental health. CNSs collaborate with other nurses and medical professionals to improve patient care quality. CNSs are often positioned in leadership roles where they may provide education and mentorship to other nursing personnel. Additionally, CNSs may also conduct research and advocate for certain healthcare policies.

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: Clinical Nurse Specialist Gerontology
Taxonomy Code: 364SG0600X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 209.018331
License State: IL

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)
1	163W00000X	Nursing Service Providers	Registered Nurse	041.458038 (IL)
2	163W00000X	Nursing Service Providers	Registered Nurse	149788 (MO)
3	364SG0600X	Physician Assistants & Advanced Practice Nursing Providers	Clinical Nurse Specialist Gerontology	149788 (MO)

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 1659907418, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 2

Check

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 5 → 10 → 1 9 → 18 → 9 7 → 14 → 5 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 8 + 0 + 1 + 4 + 4 + 2 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1659907418.