DREYER MEDICAL CLINIC
NPI 1124492111
Clinic/Center - Multi-Specialty in Yorkville, IL

NPI Status: Active since November 14, 2015

Contact Information

1500 SYCAMORE RD
YORKVILLE, IL
ZIP 60560
Phone: (630) 553-4470

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  • Organization
  • Clinic/Center
  • Multi-Specialty
  • CLIA Number: 14D0903945
  • CLIA Cert. Type: Independent
  • CLIA Exp. Date: 07-31-2027

About DREYER MEDICAL CLINIC

This page provides the complete NPI Profile along with additional information for Dreyer Medical Clinic, a provider established in Yorkville, Illinois operating as a Clinic/center, focusing in multi-specialty . The healthcare provider is registered in the NPI registry with number 1124492111 assigned on November 2015. The practitioner's primary taxonomy code is 261QM1300X. The provider is registered as an organization and their NPI record was last updated 5 years ago. The provider's is doing business as Dreyer Medical Clinic. The authorized official of this NPI record is Nan Nelson (Evp Financial Ops)

NPI
1124492111
Provider Legal Name
DREYER CLINIC, INC
Other Organization Name
DREYER MEDICAL CLINIC
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
1500 SYCAMORE RD YORKVILLE, IL 60560
Location Phone
(630) 553-4470
Mailing Address
2357 SEQUOIA DR AURORA, IL 60506
Mailing Phone
(630) 859-6800
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
11-14-2015
Last Update Date
08-30-2021
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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 Multi-Specialty

Taxonomy Code
261QM1300X
Type
Ambulatory Health Care Facilities
License State
IL

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

NAN NELSON

Authorized Official Title
EVP FINANCIAL OPS
Authorized Official Phone
(414) 299-1610

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
14D0903945
Facility Type
Independent
Certificate Effective Date
August 01, 2025
Certificate Expiration Date
July 31, 2027
Laboratory Director
MOON WOO NAM
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Dreyer Medical Clinic to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1124492111, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
1
Unchanged
Pos 3
2
Doubled → 4
Pos 4
4
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
1
Doubled → 2
Check
1
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 2 → 4 4 → 8 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 8 + 9 + 4 + 1 + 2 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1124492111.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Nurse Practitioner (Family)
1500 SYCAMORE RD, SUITE 1000
YORKVILLE, IL 60560
Pediatrics
1500 SYCAMORE RD, SUITE 1000
YORKVILLE, IL 60560
Family Medicine
1500 SYCAMORE RD, SUITE 1000
YORKVILLE, IL 60560
Physician Assistant
1500 SYCAMORE RD, SUITE 1000
YORKVILLE, IL 60560

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124492111, enumerated as an "organization" on November 14, 2015.

The provider is located at 1500 SYCAMORE RD YORKVILLE, IL 60560 and the phone number is (630) 553-4470.

Clinic/Center with taxonomy code 261QM1300X and a focus in Multi-Specialty.