HOMER E KNUDSON M.D.
NPI 1285666891
Specialist in Vienna, VA

NPI Status: Active since July 06, 2006

Contact Information

8308 OLD COURTHOUSE RD
SUITE A
VIENNA, VA
ZIP 22182
Phone: (703) 790-9440
Fax: (703) 790-5359

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  • Individual
  • Male
  • Specialist

About HOMER KNUDSON

This page provides the complete NPI Profile along with additional information for Homer Knudson, a provider established in Vienna, Virginia with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1285666891 assigned on July 2006. The practitioner's primary taxonomy code is 174400000X with license number 23301 (VA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1285666891
Provider Name
HOMER E KNUDSON M.D.
Gender
Male
Entity Type
Individual
Location Address
8308 OLD COURTHOUSE RD SUITE A VIENNA, VA 22182
Location Phone
(703) 790-9440
Location Fax
(703) 790-5359
Mailing Address
8308 OLD COURTHOUSE RD SUITE A VIENNA, VA 22182
Mailing Phone
(703) 790-9440
Mailing Fax
(703) 790-5359
Is Sole Proprietor?
Yes
Enumeration Date
07-06-2006
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

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
23301
License State
VA
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
0785845OTHER (01)VAAETNA HMO
4087OTHER (01)VABLUECROSS BLUESHIELD PPO
99214OTHER (01)VAGUARDIAN
4087OTHER (01)VACAREFIRST PPO/ BLUECHOICE
B94132MEDICARE UPIN (02) 
07-00455OTHER (01)VAUNITED HEALTHCARE PIN
1463350004OTHER (01)VACIGNA PIN
27007OTHER (01)VAOPTIMUMCHOICE/MAMSI/MDIPA
4087376OTHER (01)VAAETNA PPO
088399OTHER (01)VAANTHEM PPO/HEALTHKEEPERS
10316OTHER (01)VAUNICARE
6260730MEDICAID (05)VA 

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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 1285666891, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
2
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 8 → 16 → 7 6 → 12 → 3 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 + 2 + 1 + 6 + 5 + 1 + 2 + 6 + 1 + 2 + 8 + 1 + 8 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1285666891.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Psychologist (Clinical)
8308 OLD COURTHOUSE RD, SUITE B
VIENNA, VA 22182
Dentist (General Practice)
8308 OLD COURTHOUSE RD, SUITE C
VIENNA, VA 22182
Social Worker (Clinical)
8308 OLD COURTHOUSE RD, SUITE B
VIENNA, VA 22182
Psychiatry & Neurology (Psychiatry)
8308 OLD COURTHOUSE RD, B
VIENNA, VA 22182
Dentist
8308 OLD COURTHOUSE RD, SUITE D
VIENNA, VA 22182
Dentist (Periodontics)
8308 OLD COURTHOUSE RD
VIENNA, VA 22182
Obstetrics & Gynecology
8308 OLD COURTHOUSE RD, SUITE A
VIENNA, VA 22182

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285666891, enumerated as an "individual" on July 06, 2006.

The provider is located at 8308 OLD COURTHOUSE RD SUITE A VIENNA, VA 22182 and the phone number is (703) 790-9440.

Specialist with taxonomy code 174400000X.

The provider might be accepting Accepts: Aetna, Medicare, Medicaid, Cigna and Anthem Blue. Please consult your insurance carrier or call the provider to verify.