DR. JOHN E GRUBB DDS
NPI 1154533461
Dentist - Orthodontics and Dentofacial Orthopedics in Chicago, IL

NPI Status: Active since May 07, 2007

Contact Information

801 S PAULINA ST
CHICAGO, IL
ZIP 60612
Phone: (312) 996-7138

Get Directions Write a Review

  • Individual
  • Male
  • Dentist
  • Orthodontics and Dentofacial Orthopedics

About JOHN GRUBB

This page provides the complete NPI Profile along with additional information for John Grubb, a provider established in Chicago, Illinois with a medical specialization in Dentist, focusing in orthodontics and dentofacial orthopedics . The healthcare provider is registered in the NPI registry with number 1154533461 assigned on May 2007. The practitioner's primary taxonomy code is 1223X0400X with license number 136000123 (IL). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1154533461
Provider Name
DR. JOHN E GRUBB DDS
Gender
Male
Entity Type
Individual
Location Address
801 S PAULINA ST CHICAGO, IL 60612
Location Phone
(312) 996-7138
Mailing Address
1 W SUPERIOR ST APT 4913 CHICAGO, IL 60610
Mailing Phone
(312) 475-9492
Is Sole Proprietor?
Yes
Enumeration Date
05-07-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like John Grubb 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 Orthodontics and Dentofacial Orthopedics

Taxonomy Code
1223X0400X
Type
Dental Providers
License No.
136000123
License State
IL
Taxonomy Description
That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.

Reviews for DR. JOHN E GRUBB DDS

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1154533461, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 1 + 0 + 3 + 6 + 4 + 1 + 2 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1154533461.

Other Providers at the Same Location


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

Dentist (Orthodontics and Dentofacial Orthopedics)
801 S PAULINA ST, MC 841
CHICAGO, IL 60612
Dentist
801 S PAULINA ST
CHICAGO, IL 60612
Dentist (General Practice)
801 S PAULINA ST
CHICAGO, IL 60612
Dentist (Pediatric Dentistry)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (Endodontics)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (General Practice)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (Prosthodontics)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (Oral and Maxillofacial Surgery)
801 S PAULINA ST, COLLEGE OF DENTISTRY
CHICAGO, IL 60612
Dentist (Prosthodontics)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (Periodontics)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (General Practice)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (Periodontics)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (General Practice)
801 S PAULINA ST, MC 621
CHICAGO, IL 60612
Dentist (General Practice)
801 S PAULINA ST, #301D
CHICAGO, IL 60612
Dentist (Endodontics)
801 S PAULINA ST, DEPARTMENT OF ENDODONTICS
CHICAGO, IL 60612
Psychologist
801 S PAULINA ST
CHICAGO, IL 60612
Dentist (Prosthodontics)
801 S PAULINA ST, RM 204K
CHICAGO, IL 60612
Clinical Medical Laboratory
801 S PAULINA ST, ROOM 525A (M/C 838)
CHICAGO, IL 60612
Dentist
801 S PAULINA ST, COLLEGE OF DENTISTRY; DEPT OMFS (MC 835)
CHICAGO, IL 60612

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154533461, enumerated as an "individual" on May 07, 2007.

The provider is located at 801 S PAULINA ST CHICAGO, IL 60612 and the phone number is (312) 996-7138.

Dentist with taxonomy code 1223X0400X and a focus in Orthodontics and Dentofacial Orthopedics.