DR. THOMAS RICHARD MADISON DDS
NPI 1932213949
Dentist - Periodontics in Portland, OR

NPI Status: Active since August 18, 2006

Contact Information

1020 NE 2ND AVE
SUITE 300
PORTLAND, OR
ZIP 97232
Phone: (503) 230-7978
Fax: (503) 230-0232

Get Directions Write a Review

  • Individual
  • Male
  • Dentist
  • Periodontics

About THOMAS MADISON

This page provides the complete NPI Profile along with additional information for Thomas Madison, a provider established in Portland, Oregon with a medical specialization in Dentist, focusing in periodontics . The healthcare provider is registered in the NPI registry with number 1932213949 assigned on August 2006. The practitioner's primary taxonomy code is 1223P0300X with license number D6647 (OR). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1932213949
Provider Name
DR. THOMAS RICHARD MADISON DDS
Gender
Male
Entity Type
Individual
Location Address
1020 NE 2ND AVE SUITE 300 PORTLAND, OR 97232
Location Phone
(503) 230-7978
Location Fax
(503) 230-0232
Mailing Address
1020 NE 2ND AVE SUITE 300 PORTLAND, OR 97232
Mailing Phone
(503) 230-7978
Mailing Fax
(503) 230-0232
Is Sole Proprietor?
Yes
Enumeration Date
08-18-2006
Last Update Date
07-08-2007
Code Navigator

A dentist like Thomas Madison 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.
D6647
License State
OR
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.

Reviews for DR. THOMAS RICHARD MADISON 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 1932213949, 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
9
Unchanged
Pos 3
3
Doubled → 6
Pos 4
2
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
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 3 → 6 2 → 4 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 6 + 2 + 4 + 1 + 6 + 9 + 8 + 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 1932213949.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Dentist (Endodontics)
1020 NE 2ND AVE, #320
PORTLAND, OR 97232

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1932213949, enumerated as an "individual" on August 18, 2006.

The provider is located at 1020 NE 2ND AVE SUITE 300 PORTLAND, OR 97232 and the phone number is (503) 230-7978.

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