KAREN M JOHNSON NP
NPI 1053369868
Nurse Practitioner - Pediatrics in Alexandria, VA

NPI Status: Active since May 04, 2006

Contact Information

6355 WALKER LN STE 401
ALEXANDRIA, VA
ZIP 22310
Phone: (703) 924-9301

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Nurse Practitioner
Pediatrics

About KAREN JOHNSON

This page provides the complete NPI Profile along with additional information for Karen Johnson, a provider established in Alexandria, Virginia with a medical specialization in Nurse Practitioner, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1053369868 assigned on May 2006. The practitioner's primary taxonomy code is 363LP0200X with license number 13989 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI: 1053369868
Provider Name: KAREN M JOHNSON NP
Gender: Female
Entity Type: Individual
Location Address: 6355 WALKER LN STE 401 ALEXANDRIA, VA 22310
Location Phone: (703) 924-9301
Mailing Address: 2139 HAYCOCK RD FALLS CHURCH, VA 22043
Mailing Phone: (508) 446-0564
Is Sole Proprietor?: No
Enumeration Date: 05-04-2006
Last Update Date: 12-29-2021
Code Navigator

A nurse practitioner (NP) like Karen Johnson is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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: Nurse Practitioner Pediatrics
Taxonomy Code: 363LP0200X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 13989
License State: CA

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	363LP0200X	Physician Assistants & Advanced Practice Nursing Providers	Nurse Practitioner Pediatrics	0017139582 (VA)
2	363LP0200X	Physician Assistants & Advanced Practice Nursing Providers	Nurse Practitioner Pediatrics	0024168378 (VA)

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 1053369868, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 3 → 6 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 6 + 6 + 1 + 8 + 8 + 1 + 2 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1053369868.