LYNDSEY MAE JOHNSON
NPI 1740106509
Registered Nurse in South Sioux City, NE

NPI Status: Active since June 26, 2026

Contact Information

201 E 4TH ST
SOUTH SIOUX CITY, NE
ZIP 68776
Phone: (605) 217-2667

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  • Individual
  • Female
  • Registered Nurse

About LYNDSEY JOHNSON

This page provides the complete NPI Profile along with additional information for Lyndsey Johnson, a provider established in South Sioux City, Nebraska with a medical specialization in Registered Nurse. The healthcare provider is registered in the NPI registry with number 1740106509 assigned on June 2026. The practitioner's primary taxonomy code is 163W00000X with license number 156506 (IA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1740106509
Provider Name
LYNDSEY MAE JOHNSON
Gender
Female
Entity Type
Individual
Location Address
201 E 4TH ST SOUTH SIOUX CITY, NE 68776
Location Phone
(605) 217-2667
Mailing Address
201 E 4TH ST STE 202 SOUTH SIOUX CITY, NE 68776
Is Sole Proprietor?
No
Enumeration Date
06-26-2026
Last Update Date
06-26-2026

A registered nurse (RN) like Lyndsey Johnson coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

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

Registered Nurse

Taxonomy Code
163W00000X
Type
Nursing Service Providers
License No.
156506
License State
IA
Taxonomy Description
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

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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 1740106509, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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
7
Unchanged
Pos 3
4
Doubled → 8
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
0
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
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 4 → 8 1 → 2 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 2 + 0 + 1 + 2 + 5 + 0 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1740106509.

Other Providers at the Same Location


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

Anesthesiology
201 E 4TH ST
S SIOUX CITY, NE 68776
Nurse Anesthetist, Certified Registered
201 E 4TH ST
SOUTH SIOUX CITY, NE 68776
Nurse Anesthetist, Certified Registered
201 E 4TH ST
SOUTH SIOUX CITY, NE 68776
Ophthalmology
201 E 4TH ST
SOUTH SIOUX CITY, NE 68776

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1740106509, enumerated as an "individual" on June 26, 2026.

The provider is located at 201 E 4TH ST SOUTH SIOUX CITY, NE 68776 and the phone number is (605) 217-2667.

Registered Nurse with taxonomy code 163W00000X.