CIMPAR CONSULTING, LLC
NPI 1861713216
Specialist in Oak Park, IL

NPI Status: Active since June 21, 2010

Contact Information

101 MADISON ST STE 300
OAK PARK, IL
ZIP 60302
Phone: (708) 486-2700
Fax: (708) 486-2702

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  • Organization
  • Specialist

About CIMPAR CONSULTING, LLC

This page provides the complete NPI Profile along with additional information for Cimpar Consulting, Llc, a provider established in Oak Park, Illinois operating as a Specialist. The healthcare provider is registered in the NPI registry with number 1861713216 assigned on June 2010. The practitioner's primary taxonomy code is 174400000X. The provider is registered as an organization and their NPI record was last updated March 2026. Cimpar Consulting, Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's . The authorized official of this NPI record is Dheeraj Mahajan M.d. (Owner)

NPI
1861713216
Provider Legal Name
CIMPAR CONSULTING, LLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
101 MADISON ST STE 300 OAK PARK, IL 60302
Location Phone
(708) 486-2700
Location Fax
(708) 486-2702
Mailing Address
101 MADISON ST STE 300 OAK PARK, IL 60302
Mailing Phone
(708) 486-2700
Mailing Fax
(708) 486-2702
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-21-2010
Last Update Date
03-17-2026
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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

DHEERAJ MAHAJAN M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(708) 486-2700

Reviews for CIMPAR CONSULTING, 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 1861713216, 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
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
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 7 → 14 → 5 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 4 + 1 + 6 + 2 + 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 1861713216.

Other Providers at the Same Location


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

Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Family)
101 MADISON ST STE 300
OAK PARK, IL 60302
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Voluntary or Charitable
101 MADISON ST STE 300
OAK PARK, IL 60302
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Gerontology)
101 MADISON ST STE 300
OAK PARK, IL 60302
Home Health
101 MADISON ST STE 300
OAK PARK, IL 60302
Non-emergency Medical Transport (VAN)
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Psychiatric/Mental Health)
101 MADISON ST STE 300
OAK PARK, IL 60302
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Adult Health)
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Gerontology)
101 MADISON ST STE 300
OAK PARK, IL 60302
Psychiatry & Neurology (Psychiatry)
101 MADISON ST STE 300
OAK PARK, IL 60302
Rehabilitation Practitioner
101 MADISON ST STE 300
OAK PARK, IL 60302
Physical Medicine & Rehabilitation (Hospice and Palliative Medicine)
101 MADISON ST STE 300
OAK PARK, IL 60302
Family Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Nurse Practitioner (Psychiatric/Mental Health)
101 MADISON ST STE 300
OAK PARK, IL 60302
Radiology (Diagnostic Radiology)
101 MADISON ST STE 300
OAK PARK, IL 60302

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861713216, enumerated as an "organization" on June 21, 2010.

The provider is located at 101 MADISON ST STE 300 OAK PARK, IL 60302 and the phone number is (708) 486-2700.

Specialist with taxonomy code 174400000X.