CATHY ELAINE GUYER RDH
NPI 1659848729
Dental Hygienist in Portsmouth, VA

NPI Status: Active since October 26, 2018

Contact Information

4000 COAST GUARD BLVD
PORTSMOUTH, VA
ZIP 23703
Phone: (757) 483-5896

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  • Individual
  • Female
  • Dental Hygienist

About CATHY GUYER

This page provides the complete NPI Profile along with additional information for Cathy Guyer, a provider established in Portsmouth, Virginia with a medical specialization in Dental Hygienist. The healthcare provider is registered in the NPI registry with number 1659848729 assigned on October 2018. The practitioner's primary taxonomy code is 124Q00000X with license number 042003481 (VA). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI
1659848729
Provider Name
CATHY ELAINE GUYER RDH
Gender
Female
Entity Type
Individual
Location Address
4000 COAST GUARD BLVD PORTSMOUTH, VA 23703
Location Phone
(757) 483-5896
Mailing Address
108 LAKES EDGE DR SUFFOLK, VA 23434
Mailing Phone
(757) 630-8187
Is Sole Proprietor?
No
Enumeration Date
10-26-2018
Last Update Date
10-26-2018
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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.
042003481
License State
VA
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 1659848729, 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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
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 5 → 10 → 1 8 → 16 → 7 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 6 + 4 + 1 + 6 + 7 + 4 + 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 1659848729.

Other Providers at the Same Location


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

Military Health Care Provider
4000 COAST GUARD BLVD, MEDICAL DIVISION
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD, MEDICAL DEPARTMENT
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Military Health Care Provider (Independent Duty Medical Technicians)
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD, USCGC NORTHLAND (WMEC 904)
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Military Health Care Provider
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD, ISC PORTSMOUTH HSDIV
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD, USCG ISC PORTSMOUTH
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD, USCG ISC
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Other
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Technician, Health Information
4000 COAST GUARD BLVD, CGC FORWARD
PORTSMOUTH, VA 23703
Emergency Medical Technician, Basic
4000 COAST GUARD BLVD
PORTSMOUTH, VA 23703
Social Worker (Clinical)
4000 COAST GUARD BLVD, HSWL
PORTSMOUTH, VA 23703
Counselor (Mental Health)
4000 COAST GUARD BLVD, HSWL
PORTSMOUTH, VA 23703

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659848729, enumerated as an "individual" on October 26, 2018.

The provider is located at 4000 COAST GUARD BLVD PORTSMOUTH, VA 23703 and the phone number is (757) 483-5896.

Dental Hygienist with taxonomy code 124Q00000X.