DR. WILLIAM J BYRNE M.D.
NPI 1851496798
Specialist in Portland, OR

NPI Status: Active since September 14, 2006

Contact Information

707 SW GAINES ST
PORTLAND, OR
ZIP 97239
Phone: (503) 494-1078

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  • Individual
  • Male
  • Specialist

About WILLIAM BYRNE

This page provides the complete NPI Profile along with additional information for William Byrne, a provider established in Portland, Oregon with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1851496798 assigned on September 2006. The practitioner's primary taxonomy code is 174400000X with license number G25209 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1851496798
Provider Name
DR. WILLIAM J BYRNE M.D.
Gender
Male
Entity Type
Individual
Location Address
707 SW GAINES ST PORTLAND, OR 97239
Location Phone
(503) 494-1078
Mailing Address
707 SW GAINES ST PORTLAND, OR 97239
Mailing Phone
(503) 494-1078
Is Sole Proprietor?
Yes
Enumeration Date
09-14-2006
Last Update Date
12-13-2011
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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

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
G25209
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1851496798, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
8
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 4 → 8 6 → 12 → 3 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 8 + 9 + 1 + 2 + 7 + 1 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1851496798.

Other Providers at the Same Location


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

Genetic Counselor, MS
707 SW GAINES ST, CHILD DEVELOPMENT & REHABILITATION CENTER
PORTLAND, OR 97239
Genetic Counselor, MS
707 SW GAINES ST, OHSU GENETICS
PORTLAND, OR 97239
Audiologist
707 SW GAINES ST
PORTLAND, OR 97239
Pediatrics (Pediatric Cardiology)
707 SW GAINES ST, CDRC-P
PORTLAND, OR 97239
Pediatrics
707 SW GAINES ST, CDRC 2220
PORTLAND, OR 97239
Pediatrics
707 SW GAINES ST
PORTLAND, OR 97239
Psychologist (Clinical)
707 SW GAINES ST
PORTLAND, OR 97239
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
707 SW GAINES ST, CDRC-P
PORTLAND, OR 97239
Psychologist (Clinical)
707 SW GAINES ST
PORTLAND, OR 97239
Speech-Language Pathologist
707 SW GAINES ST
PORTLAND, OR 97239
Occupational Therapy Assistant
707 SW GAINES ST
PORTLAND, OR 97239
Dietitian, Registered
707 SW GAINES ST
PORTLAND, OR 97239
Nurse Practitioner (Pediatrics)
707 SW GAINES ST
PORTLAND, OR 97239
Speech-Language Pathologist
707 SW GAINES ST
PORTLAND, OR 97239
Pediatrics (Pediatric Cardiology)
707 SW GAINES ST, CDRC-P
PORTLAND, OR 97239
Pediatrics (Neurodevelopmental Disabilities)
707 SW GAINES ST
PORTLAND, OR 97239
Pediatrics (Pediatric Cardiology)
707 SW GAINES ST, PEDIATRIC CARDIOLOGY, CDRC-P
PORTLAND, OR 97239
Nurse Practitioner (Pediatrics)
707 SW GAINES ST
PORTLAND, OR 97239
Medical Genetics (Clinical Genetics (M.D.))
707 SW GAINES ST
PORTLAND, OR 97239
Pediatrics (Pediatric Infectious Diseases)
707 SW GAINES ST
PORTLAND, OR 97239

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851496798, enumerated as an "individual" on September 14, 2006.

The provider is located at 707 SW GAINES ST PORTLAND, OR 97239 and the phone number is (503) 494-1078.

Specialist with taxonomy code 174400000X.