ERYN WATSON DNP, CPNP-PC
NPI 1568318590
Nurse Practitioner - Pediatrics in Saint Louis, MO

NPI Status: Active since March 10, 2026

Contact Information

1 CHILDRENS PL
SAINT LOUIS, MO
ZIP 63110
Phone: (314) 454-6000

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  • Individual
  • Female
  • Nurse Practitioner
  • Pediatrics

About ERYN WATSON

This page provides the complete NPI Profile along with additional information for Eryn Watson, a provider established in Saint Louis, Missouri with a medical specialization in Nurse Practitioner, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1568318590 assigned on March 2026. The practitioner's primary taxonomy code is 363LP0200X with license number 2025041494 (MO). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1568318590
Provider Name
ERYN WATSON DNP, CPNP-PC
Gender
Female
Entity Type
Individual
Location Address
1 CHILDRENS PL SAINT LOUIS, MO 63110
Location Phone
(314) 454-6000
Mailing Address
1 CHILDRENS PL SAINT LOUIS, MO 63110
Mailing Phone
(314) 454-6000
Is Sole Proprietor?
No
Enumeration Date
03-10-2026
Last Update Date
03-10-2026
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A nurse practitioner (NP) like Eryn Watson 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.
2025041494
License State
MO

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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 1568318590, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
5
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
8
Unchanged
Pos 5
3
Doubled → 6
Pos 6
1
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
0
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 6 → 12 → 3 3 → 6 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 6 + 1 + 1 + 6 + 5 + 1 + 8 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1568318590.

Other Providers at the Same Location


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

Pediatrics
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Pharmacist
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Pharmacist
1 CHILDRENS PL, ST LOUIS CHILDREN OUT PATIENT PHARMACY
SAINT LOUIS, MO 63110
Pharmacist
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Anesthesiology
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Ophthalmology
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Cardiology)
1 CHILDRENS PL, SUITE 5S30
SAINT LOUIS, MO 63110
Anesthesiology
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Critical Care Medicine)
1 CHILDRENS PL, SUITE 5S20
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Rheumatology)
1 CHILDRENS PL, SUITE 11W32
SAINT LOUIS, MO 63110
Anesthesiology (Pediatric Anesthesiology)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Pediatrics
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Physical Therapist
1 CHILDRENS PL, STE 11E10
SAINT LOUIS, MO 63110
Clinical Neuropsychologist
1 CHILDRENS PL, #3S32
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Hematology-Oncology)
1 CHILDRENS PL, SUITE 9S
SAINT LOUIS, MO 63110
Pediatrics (Pediatric Gastroenterology)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Medical Genetics (Clinical Genetics (M.D.))
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Clinical Neuropsychologist
1 CHILDRENS PL, 3S32
SAINT LOUIS, MO 63110
Pediatrics (Adolescent Medicine)
1 CHILDRENS PL
SAINT LOUIS, MO 63110
Anesthesiology
1 CHILDRENS PL
SAINT LOUIS, MO 63110

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568318590, enumerated as an "individual" on March 10, 2026.

The provider is located at 1 CHILDRENS PL SAINT LOUIS, MO 63110 and the phone number is (314) 454-6000.

Nurse Practitioner with taxonomy code 363LP0200X and a focus in Pediatrics.