NORTHWESTERN MEDICAL GROUP
NPI 1063821916
Optometrist in Lake Forest, IL

NPI Status: Active since August 05, 2014

Contact Information

900 N WESTMORELAND RD
LOWER LEVEL 88
LAKE FOREST, IL
ZIP 60045
Phone: (847) 295-0001

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  • Organization
  • Optometrist
  • CLIA Number: 14D2130414
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 05-07-2027

About NORTHWESTERN MEDICAL GROUP

This page provides the complete NPI Profile along with additional information for Northwestern Medical Group, a provider established in Lake Forest, Illinois operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1063821916 assigned on August 2014. The practitioner's primary taxonomy code is 152W00000X. The provider is registered as an organization and their NPI record was last updated 2 years ago. Northwestern Medical Group operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's is doing business as Northwestern Medical Group. The authorized official of this NPI record is Sabina Strzeminska (Director)

NPI
1063821916
Provider Legal Name
NORTHWESTERN MEDICAL FACULTY FOUNDATION
Other Organization Name
NORTHWESTERN MEDICAL GROUP
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
900 N WESTMORELAND RD LOWER LEVEL 88 LAKE FOREST, IL 60045
Location Phone
(847) 295-0001
Mailing Address
5777 DEPT CAROL STREAM, IL 60122
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-05-2014
Last Update Date
01-17-2024
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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)
1152WC0802XEye and Vision Services Providers

Optometrist
Corneal and Contact Management

 
2152WV0400XEye and Vision Services Providers

Optometrist
Vision Therapy

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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

SABINA STRZEMINSKA

Authorized Official Title
DIRECTOR
Authorized Official Phone
(312) 695-0646

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
14D2130414
Facility Type
Physician Office
Certificate Effective Date
May 08, 2025
Certificate Expiration Date
May 07, 2027
Laboratory Director
MATTHEW S. SCHAFF
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Northwestern Medical Group in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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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 1063821916, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 2 + 3 + 1 + 6 + 2 + 2 + 9 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1063821916.

Other Providers at the Same Location


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

Pediatrics
900 N WESTMORELAND RD, 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, STE 106
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, STE 106
LAKE FOREST, IL 60045
Obstetrics & Gynecology
900 N WESTMORELAND RD, SUITE 228
LAKE FOREST, IL 60045
Obstetrics & Gynecology (Gynecology)
900 N WESTMORELAND RD, SUITE 228
LAKE FOREST, IL 60045
Obstetrics & Gynecology
900 N WESTMORELAND RD, SUITE 228
LAKE FOREST, IL 60045
Psychologist (Clinical)
900 N WESTMORELAND RD, STE LL70
LAKE FOREST, IL 60045
Dermatology
900 N WESTMORELAND RD, SUITE 222
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Nurse Practitioner (Pediatrics)
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Nurse Practitioner (Pediatrics)
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Pediatrics
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1063821916, enumerated as an "organization" on August 05, 2014.

The provider is located at 900 N WESTMORELAND RD LOWER LEVEL 88 LAKE FOREST, IL 60045 and the phone number is (847) 295-0001.

Optometrist with taxonomy code 152W00000X.