ARIEL A COLQUHOUN NURSE PRACTITIONER
NPI 1811828403
Nurse Practitioner in New York, NY

NPI Status: Active since May 25, 2026

Contact Information

177 FORT WASHINGTON AVE
NEW YORK, NY
ZIP 10032
Phone: (646) 697-4727

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  • Individual
  • Female
  • Nurse Practitioner

About ARIEL COLQUHOUN

This page provides the complete NPI Profile along with additional information for Ariel Colquhoun, a provider established in New York, New York with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1811828403 assigned on May 2026. The practitioner's primary taxonomy code is 363L00000X with license number 356969 (NY). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1811828403
Provider Name
ARIEL A COLQUHOUN NURSE PRACTITIONER
Gender
Female
Entity Type
Individual
Location Address
177 FORT WASHINGTON AVE NEW YORK, NY 10032
Location Phone
(646) 697-4727
Mailing Address
177 FORT WASHINGTON AVE NEW YORK, NY 10032
Mailing Phone
(646) 697-4727
Is Sole Proprietor?
Yes
Enumeration Date
05-25-2026
Last Update Date
05-25-2026
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A nurse practitioner (NP) like Ariel Colquhoun 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

Taxonomy Code
363L00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
356969
License State
NY
Taxonomy Description
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

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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 1811828403, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 6 + 2 + 1 + 6 + 4 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1811828403.

Other Providers at the Same Location


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

Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN HOSPITAL
NEW YORK, NY 10032
Specialist
177 FORT WASHINGTON AVE, 7-435 G.N.
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Psychiatry & Neurology (Psychiatry)
177 FORT WASHINGTON AVE, MILSTEIN 9 GARDEN NORTH
NEW YORK, NY 10032
Allergy & Immunology (Clinical & Laboratory Immunology)
177 FORT WASHINGTON AVE, 7-453GN
NEW YORK, NY 10032
Physician Assistant
177 FORT WASHINGTON AVE, MILSTEIN HOSPITAL/ 8 SOUTH KNUCKLE
NEW YORK, NY 10032
Psychiatry & Neurology (Neurology)
177 FORT WASHINGTON AVE, INTERVENTIONAL RADIOLOGY MBH 4-100
NEW YORK, NY 10032
Thoracic Surgery (Cardiothoracic Vascular Surgery)
177 FORT WASHINGTON AVE, 7TH FLOOR, SUITE 435
NEW YORK, NY 10032
Physician Assistant
177 FORT WASHINGTON AVE
NEW YORK, NY 10032
Physician Assistant (Surgical)
177 FORT WASHINGTON AVE, MHB 7GN-435
NEW YORK, NY 10032
Physician Assistant (Medical)
177 FORT WASHINGTON AVE, MICUB 4 HUDSON SOUTH
NEW YORK, NY 10032
Physician Assistant
177 FORT WASHINGTON AVE
NEW YORK, NY 10032
Physician Assistant (Medical)
177 FORT WASHINGTON AVE
NEW YORK, NY 10032
Physician Assistant (Medical)
177 FORT WASHINGTON AVE
NEW YORK, NY 10032
Physician Assistant (Surgical)
177 FORT WASHINGTON AVE, MILSTEIN HOSPITAL BLDG, SUITE 7-435
NEW YORK, NY 10032
Physician Assistant (Surgical)
177 FORT WASHINGTON AVE, MILSTEIN 7GN RM 435
NEW YORK, NY 10032

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811828403, enumerated as an "individual" on May 25, 2026.

The provider is located at 177 FORT WASHINGTON AVE NEW YORK, NY 10032 and the phone number is (646) 697-4727.

Nurse Practitioner with taxonomy code 363L00000X.