PROF. MARC SCHEETZ
NPI 1689549545
Pharmacist - Infectious Diseases in Downers Grove, IL

NPI Status: Active since October 09, 2025

Contact Information

555 31ST ST
DOWNERS GROVE, IL
ZIP 60515
Phone: (630) 515-6116

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  • Individual
  • Male
  • Pharmacist
  • Infectious Diseases

About MARC SCHEETZ

This page provides the complete NPI Profile along with additional information for Marc Scheetz, a provider established in Downers Grove, Illinois with a medical specialization in Pharmacist, focusing in infectious diseases . The healthcare provider is registered in the NPI registry with number 1689549545 assigned on October 2025. The practitioner's primary taxonomy code is 1835I0206X with license number 051.289693 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1689549545
Provider Name
PROF. MARC SCHEETZ
Gender
Male
Entity Type
Individual
Location Address
555 31ST ST DOWNERS GROVE, IL 60515
Location Phone
(630) 515-6116
Mailing Address
555 31ST ST DOWNERS GROVE, IL 60515
Mailing Phone
(630) 515-6116
Is Sole Proprietor?
No
Enumeration Date
10-09-2025
Last Update Date
10-09-2025
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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

Pharmacist Infectious Diseases

Taxonomy Code
1835I0206X
Type
Pharmacy Service Providers
License No.
051.289693
License State
IL
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in the use of microbiology and pharmacology to develop, implement, and monitor drug regimens that incorporate antimicrobials to optimize therapy for patients.

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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 1689549545, 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
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 8 → 16 → 7 5 → 10 → 1 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 0 + 4 + 1 + 8 + 5 + 8 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1689549545.

Other Providers at the Same Location


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

Pharmacist (Pharmacotherapy)
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST, AH 355
DOWNERS GROVE, IL 60515
Physician Assistant
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST, MIDWESTERN UNIVERSITY-CHICAGO COLLEGE OF PHARMACY
DOWNERS GROVE, IL 60515
Physical Therapist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Occupational Therapist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Occupational Therapist (Pediatrics)
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Dentist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
555 31ST ST
DOWNERS GROVE, IL 60515
Dentist
555 31ST ST
DOWNERS GROVE, IL 60515
Physician Assistant
555 31ST ST
DOWNERS GROVE, IL 60515
Physician Assistant
555 31ST ST
DOWNERS GROVE, IL 60515
Pharmacy Technician
555 31ST ST
DOWNERS GROVE, IL 60515
Student in an Organized Health Care Education/Training Program
555 31ST ST
DOWNERS GROVE, IL 60515

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689549545, enumerated as an "individual" on October 09, 2025.

The provider is located at 555 31ST ST DOWNERS GROVE, IL 60515 and the phone number is (630) 515-6116.

Pharmacist with taxonomy code 1835I0206X and a focus in Infectious Diseases.