DR. ROBERT TAYLOR MATHESON M.D.
NPI 1457554883
Specialist - Research Study in Portland, OR

NPI Status: Active since June 05, 2007

Contact Information

9495 SW LOCUST ST STE G
PORTLAND, OR
ZIP 97223
Phone: (503) 245-1525
Fax: (503) 245-0315

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  • Individual
  • Male
  • Specialist
  • Research Study

About ROBERT MATHESON

This page provides the complete NPI Profile along with additional information for Robert Matheson, a provider established in Portland, Oregon with a medical specialization in Specialist, focusing in research study . The healthcare provider is registered in the NPI registry with number 1457554883 assigned on June 2007. The practitioner's primary taxonomy code is 1744R1102X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1457554883
Provider Name
DR. ROBERT TAYLOR MATHESON M.D.
Gender
Male
Entity Type
Individual
Location Address
9495 SW LOCUST ST STE G PORTLAND, OR 97223
Location Phone
(503) 245-1525
Location Fax
(503) 245-0315
Mailing Address
9495 SW LOCUST ST STE G PORTLAND, OR 97223
Mailing Phone
(503) 245-1525
Mailing Fax
(503) 245-0315
Is Sole Proprietor?
Yes
Enumeration Date
06-05-2007
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

Specialist Research Study

Taxonomy Code
1744R1102X
Type
Other Service Providers

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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 1457554883, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
4
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
7
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
3
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 5 → 10 → 1 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 0 + 7 + 1 + 0 + 5 + 8 + 8 + 1 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1457554883.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Nurse Practitioner
9495 SW LOCUST ST STE G
PORTLAND, OR 97223
Internal Medicine (Hematology & Oncology)
9495 SW LOCUST ST STE G
PORTLAND, OR 97223
Internal Medicine (Hematology & Oncology)
9495 SW LOCUST ST STE G
PORTLAND, OR 97223
Internal Medicine (Hematology & Oncology)
9495 SW LOCUST ST STE G
PORTLAND, OR 97223

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457554883, enumerated as an "individual" on June 05, 2007.

The provider is located at 9495 SW LOCUST ST STE G PORTLAND, OR 97223 and the phone number is (503) 245-1525.

Specialist with taxonomy code 1744R1102X and a focus in Research Study.