DR. LEON TERRENZE NICHOLS M.D.
NPI 1700936788
Radiology - Diagnostic Radiology in New York, NY

NPI Status: Active since January 11, 2007

Contact Information

1901 1ST AVE
NEW YORK, NY
ZIP 10029
Phone: (212) 423-8302

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  • Individual
  • Male
  • Radiology
  • Diagnostic Radiology

About LEON NICHOLS

This page provides the complete NPI Profile along with additional information for Leon Nichols, a provider established in New York, New York with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1700936788 assigned on January 2007. The practitioner's primary taxonomy code is 2085R0202X with license number 111462 (NY). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1700936788
Provider Name
DR. LEON TERRENZE NICHOLS M.D.
Gender
Male
Entity Type
Individual
Location Address
1901 1ST AVE NEW YORK, NY 10029
Location Phone
(212) 423-8302
Mailing Address
144 WAVERLY RD SCARSDALE, NY 10583
Mailing Phone
(914) 632-9442
Mailing Fax
Is Sole Proprietor?
Yes
Enumeration Date
01-11-2007
Last Update Date
09-11-2025
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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

Radiology Diagnostic Radiology

Taxonomy Code
2085R0202X
Type
Allopathic & Osteopathic Physicians
License No.
111462
License State
NY
Taxonomy Description
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

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)
1174400000XOther Service Providers

Specialist

111462 (NY)

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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 1700936788, 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
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
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 9 → 18 → 9 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 0 + 0 + 1 + 8 + 3 + 1 + 2 + 7 + 1 + 6 + 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 1700936788.

Other Providers at the Same Location


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

Physical Medicine & Rehabilitation
1901 1ST AVE, RM 327, REHABILITATION MEDICINE DEPT
NEW YORK, NY 10029
Internal Medicine
1901 1ST AVE, DEPARTMENT OF MEDICINE
NEW YORK, NY 10029
Medical Genetics (Clinical Genetics (M.D.))
1901 1ST AVE, METROPOLITAN HOSPITAL ROOM 523
NEW YORK, NY 10029
Surgery
1901 1ST AVE, DEPARTMENT OF SURGERY
NEW YORK, NY 10029
Radiology (Diagnostic Radiology)
1901 1ST AVE, SUITE 5 SOUTH 2
NEW YORK, NY 10029
Ophthalmology
1901 1ST AVE, SUITE 5 SOUTH 2 METROPOLITAN HOSPITAL
NEW YORK, NY 10029
Optometrist
1901 1ST AVE
NEW YORK, NY 10029
Ophthalmology
1901 1ST AVE
NEW YORK, NY 10029
Emergency Medicine
1901 1ST AVE
NEW YORK, NY 10029
Emergency Medicine
1901 1ST AVE
NEW YORK, NY 10029
Obstetrics & Gynecology
1901 1ST AVE, METROPOLITAN HOSPITAL DEPT OB-GYN
NEW YORK, NY 10029
Pathology (Anatomic Pathology & Clinical Pathology)
1901 1ST AVE, 2B3
NEW YORK, NY 10029
Advanced Practice Midwife
1901 1ST AVE, DEPT OB/GYN
NEW YORK, NY 10029
Advanced Practice Midwife
1901 1ST AVE, ROOM 4B1
NEW YORK, NY 10029
Advanced Practice Midwife
1901 1ST AVE, METROPOLITAN HOSPITAL CENTER DEPT. OB-GYN
NEW YORK, NY 10029
Obstetrics & Gynecology
1901 1ST AVE, METROPOLITAN HOSPITAL OB/GYN
NEW YORK, NY 10029
Dentist (General Practice)
1901 1ST AVE, SUITE 2D8A
NEW YORK, NY 10029
Emergency Medicine (Emergency Medical Services)
1901 1ST AVE, METROPOLITAN HOSPITAL EMERGENCY DEPARTMENT
NEW YORK, NY 10029
Pathology (Anatomic Pathology)
1901 1ST AVE
NEW YORK, NY 10029
Physician Assistant (Surgical)
1901 1ST AVE
NEW YORK, NY 10029

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700936788, enumerated as an "individual" on January 11, 2007.

The provider is located at 1901 1ST AVE NEW YORK, NY 10029 and the phone number is (212) 423-8302.

Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.