DR. JOHN A. GRUND D.D.S.
NPI 1689877177
Dentist - General Practice in Flossmoor, IL

NPI Status: Active since June 11, 2007

Contact Information

3235 VOLLMER RD
FLOSSMOOR, IL
ZIP 60422
Phone: (708) 798-5900

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  • Individual
  • Male
  • Dentist
  • General Practice

About JOHN GRUND

This page provides the complete NPI Profile along with additional information for John Grund, a provider established in Flossmoor, Illinois with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1689877177 assigned on June 2007. The practitioner's primary taxonomy code is 1223G0001X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1689877177
Provider Name
DR. JOHN A. GRUND D.D.S.
Gender
Male
Entity Type
Individual
Location Address
3235 VOLLMER RD FLOSSMOOR, IL 60422
Location Phone
(708) 798-5900
Mailing Address
905 BURNS AVE FLOSSMOOR, IL 60422
Mailing Phone
(708) 798-5900
Is Sole Proprietor?
Yes
Enumeration Date
06-11-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like John Grund is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License State
IL
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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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 1689877177, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
7
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 8 → 16 → 7 8 → 16 → 7 7 → 14 → 5 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 6 + 7 + 1 + 4 + 1 + 1 + 4 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1689877177.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Specialist
3235 VOLLMER RD, SUITE 110
FLOSSMOOR, IL 60422
Psychologist (Clinical)
3235 VOLLMER RD, SUITE 137
FLOSSMOOR, IL 60422
Psychologist
3235 VOLLMER RD, SUITE 119
FLOSSMOOR, IL 60422
Social Worker
3235 VOLLMER RD, SUITE 119
FLOSSMOOR, IL 60422
Social Worker
3235 VOLLMER RD, SUITE 119
FLOSSMOOR, IL 60422
Internal Medicine (Hematology & Oncology)
3235 VOLLMER RD, STE 126
FLOSSMOOR, IL 60422
Chiropractor
3235 VOLLMER RD
FLOSSMOOR, IL 60422
Dietitian, Registered
3235 VOLLMER RD, SUITE # 120
FLOSSMOOR, IL 60422
Dentist (General Practice)
3235 VOLLMER RD, STE 115
FLOSSMOOR, IL 60422
Counselor (Professional)
3235 VOLLMER RD, SUITE 206
FLOSSMOOR, IL 60422
Social Worker
3235 VOLLMER RD, SUITE 119
FLOSSMOOR, IL 60422
Internal Medicine (Hematology & Oncology)
3235 VOLLMER RD, SUITE 120
FLOSSMOOR, IL 60422
Speech-Language Pathologist
3235 VOLLMER RD, SUITE 104
FLOSSMOOR, IL 60422
Case Management
3235 VOLLMER RD, SUITE 200
FLOSSMOOR, IL 60422
Specialist
3235 VOLLMER RD, SUITE 139
FLOSSMOOR, IL 60422
Social Worker (Clinical)
3235 VOLLMER RD, SUITE 137
FLOSSMOOR, IL 60422
Nursing Care
3235 VOLLMER RD, STE. 200
FLOSSMOOR, IL 60422
Allergy & Immunology
3235 VOLLMER RD, SUITE 142
FLOSSMOOR, IL 60422
Clinic/Center (Mental Health (Including Community Mental Health Center))
3235 VOLLMER RD, SUITE 119
FLOSSMOOR, IL 60422

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689877177, enumerated as an "individual" on June 11, 2007.

The provider is located at 3235 VOLLMER RD FLOSSMOOR, IL 60422 and the phone number is (708) 798-5900.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.