ASHLEIGH FARNHAM CPNP-PC
NPI 1104517549
Nurse Practitioner - Pediatrics in Valhalla, NY

NPI Status: Active since May 17, 2023

Contact Information

95 BRADHURST AVE
VALHALLA, NY
ZIP 10595
Phone: (914) 592-7555

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

Individual
Female
Nurse Practitioner
Pediatrics

About ASHLEIGH FARNHAM

This page provides the complete NPI Profile along with additional information for Ashleigh Farnham, a provider established in Valhalla, New York with a medical specialization in Nurse Practitioner, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1104517549 assigned on May 2023. The practitioner's primary taxonomy code is 363LP0200X with license number F383786-01 (NY). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1104517549
Provider Name: ASHLEIGH FARNHAM CPNP-PC
Gender: Female
Entity Type: Individual
Location Address: 95 BRADHURST AVE VALHALLA, NY 10595
Location Phone: (914) 592-7555
Mailing Address: 95 BRADHURST AVE VALHALLA, NY 10595
Mailing Phone: (914) 592-7555
Is Sole Proprietor?: No
Enumeration Date: 05-17-2023
Last Update Date: 09-05-2025
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A nurse practitioner (NP) like Ashleigh Farnham 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.: F383786-01
License State: NY

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 1104517549, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 8

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 0 → 0 5 → 10 → 1 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 0 + 1 + 1 + 4 + 5 + 8 + 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 1104517549.