STEPHEN MATTHEW COOK RDH
NPI 1720152176
Dental Hygienist in San Francisco, CA

NPI Status: Active since November 20, 2006

Contact Information

707 PARNASSUS AVE
4TH FLOOR FACULTY GROUP PRACTICE
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 476-1419

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  • Individual
  • Male
  • Dental Hygienist

About STEPHEN COOK

This page provides the complete NPI Profile along with additional information for Stephen Cook, a provider established in San Francisco, California with a medical specialization in Dental Hygienist. The healthcare provider is registered in the NPI registry with number 1720152176 assigned on November 2006. The practitioner's primary taxonomy code is 124Q00000X with license number 11191 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1720152176
Provider Name
STEPHEN MATTHEW COOK RDH
Gender
Male
Entity Type
Individual
Location Address
707 PARNASSUS AVE 4TH FLOOR FACULTY GROUP PRACTICE SAN FRANCISCO, CA 94143
Location Phone
(415) 476-1419
Mailing Address
PO BOX 11424 OAKLAND, CA 94611
Mailing Phone
(510) 390-5632
Is Sole Proprietor?
No
Enumeration Date
11-20-2006
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

Dental Hygienist

Taxonomy Code
124Q00000X
Type
Dental Providers
License No.
11191
License State
CA
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 1720152176, 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 2 → 4 1 → 2 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 5 + 4 + 1 + 1 + 4 + 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 1720152176.

Other Providers at the Same Location


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

Dentist (Oral and Maxillofacial Surgery)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist (Pediatric Dentistry)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Oral & Maxillofacial Surgery
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist (Pediatric Dentistry)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist
707 PARNASSUS AVE, BOX 0752
SAN FRANCISCO, CA 94143
Dentist (Orthodontics and Dentofacial Orthopedics)
707 PARNASSUS AVE, D-3033
SAN FRANCISCO, CA 94143
Dentist (Prosthodontics)
707 PARNASSUS AVE, D4000
SAN FRANCISCO, CA 94143
Dentist (Endodontics)
707 PARNASSUS AVE, SUITE D4000
SAN FRANCISCO, CA 94143
Oral & Maxillofacial Surgery
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist (Prosthodontics)
707 PARNASSUS AVE, D4000
SAN FRANCISCO, CA 94143
Dentist (General Practice)
707 PARNASSUS AVE, UNIVERSITY OF CALIFORNIA
SAN FRANCISCO, CA 94143
Dentist (General Practice)
707 PARNASSUS AVE, BOX 0758
SAN FRANCISCO, CA 94143
Dentist (General Practice)
707 PARNASSUS AVE, BOX 0758
SAN FRANCISCO, CA 94143
Dentist (General Practice)
707 PARNASSUS AVE, SCHOOL OF DENTISTRY, FACULTY PRACTICE-PGPROST
SAN FRANCISCO, CA 94143
Dentist
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Clinic/Center (Dental)
707 PARNASSUS AVE, SUITE 4000
SAN FRANCISCO, CA 94143
Dentist (Orthodontics and Dentofacial Orthopedics)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Dentist (Pediatric Dentistry)
707 PARNASSUS AVE, DENTAL CLINICS BUILDING, FIRST FLOOR
SAN FRANCISCO, CA 94143

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720152176, enumerated as an "individual" on November 20, 2006.

The provider is located at 707 PARNASSUS AVE 4TH FLOOR FACULTY GROUP PRACTICE SAN FRANCISCO, CA 94143 and the phone number is (415) 476-1419.

Dental Hygienist with taxonomy code 124Q00000X.