DENNIS R GROOTHUIS MD
NPI 1093874539
Psychiatry & Neurology - Neurology in Evanston, IL

NPI Status: Active since December 08, 2006

Contact Information

2650 RIDGE AVE
NEUROLOGY BURCH 309
EVANSTON, IL
ZIP 60201
Phone: (847) 570-2570
Fax: (847) 570-1934

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology

About DENNIS GROOTHUIS

This page provides the complete NPI Profile along with additional information for Dennis Groothuis, a provider established in Evanston, Illinois with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1093874539 assigned on December 2006. The practitioner's primary taxonomy code is 2084N0400X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1093874539
Provider Name
DENNIS R GROOTHUIS MD
Gender
Male
Entity Type
Individual
Location Address
2650 RIDGE AVE NEUROLOGY BURCH 309 EVANSTON, IL 60201
Location Phone
(847) 570-2570
Location Fax
(847) 570-1934
Mailing Address
2650 RIDGE AVE EVANSTON HOSPITAL EVANSTON, IL 60201
Mailing Phone
(847) 570-1206
Mailing Fax
(847) 570-1934
Is Sole Proprietor?
No
Enumeration Date
12-08-2006
Last Update Date
07-08-2007
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License State
IL
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

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.

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

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
D12936MEDICARE UPIN (02)IL 

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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 1093874539, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
4
Doubled → 8
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 9 → 18 → 9 8 → 16 → 7 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 8 + 3 + 1 + 6 + 7 + 8 + 5 + 6 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1093874539.

Other Providers at the Same Location


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

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Genetic Counselor, MS
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Radiology (Neuroradiology)
2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201
Internal Medicine (Pulmonary Disease)
2650 RIDGE AVE
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pathology (Clinical Pathology/Laboratory Medicine)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Anatomic Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pharmacist (Pharmacotherapy)
2650 RIDGE AVE, INPATIENT PHARMACY
EVANSTON, IL 60201
Specialist
2650 RIDGE AVE
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Pharmacist
2650 RIDGE AVE
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL RM 1210
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
EVANSTON, IL 60201
Anesthesiology
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Pathology (Clinical Pathology/Laboratory Medicine)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093874539, enumerated as an "individual" on December 08, 2006.

The provider is located at 2650 RIDGE AVE NEUROLOGY BURCH 309 EVANSTON, IL 60201 and the phone number is (847) 570-2570.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.

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