LAKE COUNTY INTERNAL MEDICINE ASSOCIATION LLC
NPI 1265833958
Legal Medicine in Long Grove, IL

NPI Status: Active since September 12, 2014

Contact Information

5911 KILDEER CT
LONG GROVE, IL
ZIP 60047
Phone: (847) 672-8373
Fax: (815) 464-9285

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  • Organization
  • Legal Medicine
  • CLIA Number: 14D2117292
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-11-2026

About LAKE COUNTY INTERNAL MEDICINE ASSOCIATION LLC

This page provides the complete NPI Profile along with additional information for Lake County Internal Medicine Association Llc, a provider established in Long Grove, Illinois operating as a Legal Medicine. The healthcare provider is registered in the NPI registry with number 1265833958 assigned on September 2014. The practitioner's primary taxonomy code is 173000000X. The provider is registered as an organization and their NPI record was last updated 12 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Mariusz Milejczyk M.d. (M.d.)

NPI
1265833958
Provider Name
LAKE COUNTY INTERNAL MEDICINE ASSOCIATION LLC
Entity Type
Organization
Location Address
5911 KILDEER CT LONG GROVE, IL 60047
Location Phone
(847) 672-8373
Location Fax
(815) 464-9285
Mailing Address
5911 KILDEER CT LONG GROVE, IL 60047
Mailing Phone
(847) 672-8373
Mailing Fax
(815) 464-9285
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-12-2014
Last Update Date
09-12-2014
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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

Legal Medicine

Taxonomy Code
173000000X
Type
Other Service Providers
Taxonomy Description
The specialty areas of medicine concerned with matters of, and relations with, substantive law and legal institutions; such as the conduct of medical examinations at crime scenes, performance of autopsies, giving of expert medical testimony in judicial proceedings, medical treatment of inmates of penal institutions, the practice of trauma medicine in law enforcement settings, and other clinical practice and medical science applications in the fields of law, law enforcement, and corrections.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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. MARIUSZ MILEJCZYK M.D.

Authorized Official Title
M.D.
Authorized Official Phone
(847) 596-7426

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
P01139269OTHER (01)ILRAILROAD MEDICARE INDIVIDUAL
DT3947OTHER (01)ILRAILROAD MEDICARE
IL7339MEDICARE PIN (08)IL 
IL7339001MEDICARE UPIN (02)IL 

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
14D2117292
Facility Type
Physician Office
Certificate Effective Date
August 12, 2024
Certificate Expiration Date
August 11, 2026
Laboratory Director
MARIUSZ MILEJCZYK
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Lake County Internal Medicine Association Llc 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.

Reviews for LAKE COUNTY INTERNAL MEDICINE ASSOCIATION LLC

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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 1265833958, 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
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
5
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
8
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 6 → 12 → 3 8 → 16 → 7 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 2 + 5 + 1 + 6 + 3 + 6 + 9 + 1 + 0 + 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 1265833958.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Internal Medicine
5911 KILDEER CT
LONG GROVE, IL 60047

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265833958, enumerated as an "organization" on September 12, 2014.

The provider is located at 5911 KILDEER CT LONG GROVE, IL 60047 and the phone number is (847) 672-8373.

Legal Medicine with taxonomy code 173000000X.

The provider might be accepting Accepts: Railroad Medicare, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.