WILLIE JOHNSON RDH
NPI 1235346396
Dental Hygienist in Denver, CO

NPI Status: Active since May 17, 2007

Contact Information

155 COOK ST
STE#141
DENVER, CO
ZIP 80206
Phone: (303) 329-0505
Fax: (303) 329-8161

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  • Individual
  • Male
  • Dental Hygienist

About WILLIE JOHNSON

This page provides the complete NPI Profile along with additional information for Willie Johnson, a provider established in Denver, Colorado with a medical specialization in Dental Hygienist. The healthcare provider is registered in the NPI registry with number 1235346396 assigned on May 2007. The practitioner's primary taxonomy code is 124Q00000X with license number DH904999 (CO). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1235346396
Provider Name
WILLIE JOHNSON RDH
Gender
Male
Entity Type
Individual
Location Address
155 COOK ST STE#141 DENVER, CO 80206
Location Phone
(303) 329-0505
Location Fax
(303) 329-8161
Mailing Address
155 COOK ST STE#141 DENVER, CO 80206
Mailing Phone
(303) 329-0505
Mailing Fax
(303) 329-8161
Is Sole Proprietor?
No
Enumeration Date
05-17-2007
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

Dental Hygienist

Taxonomy Code
124Q00000X
Type
Dental Providers
License No.
DH904999
License State
CO
Taxonomy Description
An individual who has completed an accredited dental hygiene education program, and an individual who has been licensed by a state board of dental examiners to provide preventive care services under the supervision of a dentist. Functions that may be legally delegated to the dental hygienist vary based on the needs of the dentist, the educational preparation of the dental hygienist and state dental practice acts and regulations, but always include, at a minimum, scaling and polishing the teeth. To avoid misleading the public, no occupational title other than dental hygienist should be used to describe this dental auxiliary.

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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 1235346396, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
2
Unchanged
Pos 3
3
Doubled → 6
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
4
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 3 → 6 3 → 6 6 → 12 → 3 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 6 + 4 + 1 + 2 + 3 + 1 + 8 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1235346396.

Other Providers at the Same Location


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

Dentist
155 COOK ST, STE 251
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST, SUITE 301
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST
DENVER, CO 80206
Dentist (Prosthodontics)
155 COOK ST, SUITE# 231
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST, SUITE 301
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST, SUITE 301
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST, SUITE 301
DENVER, CO 80206
Dentist (Endodontics)
155 COOK ST, SUITE 301
DENVER, CO 80206
Dentist
155 COOK ST, STE #141
DENVER, CO 80206
Acupuncturist
155 COOK ST, SUITE 321
DENVER, CO 80206
Dentist
155 COOK ST, SUITE 201
DENVER, CO 80206
Dentist
155 COOK ST, SUITE 201
DENVER, CO 80206
Dentist (General Practice)
155 COOK ST, SUITE 421
DENVER, CO 80206
Dentist (General Practice)
155 COOK ST, SUITE #421
DENVER, CO 80206
Dentist
155 COOK ST, 201
DENVER, CO 80206
Massage Therapist
155 COOK ST, SUITE 120
DENVER, CO 80206
Dentist
155 COOK ST, SUITE 110
DENVER, CO 80206
Dentist
155 COOK ST, SUITE 141
DENVER, CO 80206
Dentist
155 COOK ST, STE 141
DENVER, CO 80206

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235346396, enumerated as an "individual" on May 17, 2007.

The provider is located at 155 COOK ST STE#141 DENVER, CO 80206 and the phone number is (303) 329-0505.

Dental Hygienist with taxonomy code 124Q00000X.