DONNA LOUISE MASSOTH DDS MSD PH D
NPI 1649214925
Dentist - Periodontics in Seattle, WA

NPI Status: Active since June 16, 2006

Contact Information

4500 SAND POINT WAY NE
#218
SEATTLE, WA
ZIP 98105
Phone: (206) 524-3773
Fax: (206) 526-7361

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  • Individual
  • Female
  • Dentist
  • Periodontics

About DONNA MASSOTH

This page provides the complete NPI Profile along with additional information for Donna Massoth, a provider established in Seattle, Washington with a medical specialization in Dentist, focusing in periodontics . The healthcare provider is registered in the NPI registry with number 1649214925 assigned on June 2006. The practitioner's primary taxonomy code is 1223P0300X with license number DE00005905 (WA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1649214925
Provider Name
DONNA LOUISE MASSOTH DDS MSD PH D
Gender
Female
Entity Type
Individual
Location Address
4500 SAND POINT WAY NE #218 SEATTLE, WA 98105
Location Phone
(206) 524-3773
Location Fax
(206) 526-7361
Mailing Address
4500 SAND POINT WAY NE #218 SEATTLE, WA 98105
Mailing Phone
(206) 524-3773
Mailing Fax
(206) 526-7361
Is Sole Proprietor?
Yes
Enumeration Date
06-16-2006
Last Update Date
07-08-2007
Code Navigator

A dentist like Donna Massoth 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 Periodontics

Taxonomy Code
1223P0300X
Type
Dental Providers
License No.
DE00005905
License State
WA
Taxonomy Description
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.

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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 1649214925, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).

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
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
5
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 4 → 8 2 → 4 4 → 8 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 4 + 1 + 8 + 9 + 4 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1649214925.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Dentist (General Practice)
4500 SAND POINT WAY NE, SUITE #212
SEATTLE, WA 98105
Dentist
4500 SAND POINT WAY NE, SUITE 208
SEATTLE, WA 98105
Dentist
4500 SAND POINT WAY NE, SUITE 208
SEATTLE, WA 98105
Dentist
4500 SAND POINT WAY NE
SEATTLE, WA 98105
Anesthesiology (Pediatric Anesthesiology)
4500 SAND POINT WAY NE, #100
SEATTLE, WA 98105
Pediatrics (Neonatal-Perinatal Medicine)
4500 SAND POINT WAY NE, SEATTLE CHILDREN'S HOSPITAL FA-2
SEATTLE, WA 98105
Pediatrics
4500 SAND POINT WAY NE
SEATTLE, WA 98105
Dentist (Periodontics)
4500 SAND POINT WAY NE
SEATTLE, WA 98105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649214925, enumerated as an "individual" on June 16, 2006.

The provider is located at 4500 SAND POINT WAY NE #218 SEATTLE, WA 98105 and the phone number is (206) 524-3773.

Dentist with taxonomy code 1223P0300X and a focus in Periodontics.