DR. VIKTOR GAMARNIK M.D., PH.D.
NPI 1225579451
Hospitalist in New York, NY

Active since March 20, 2017
177 FORT WASHINGTON AVE, NEW YORK, NY 10032(212) 305-6354(212) 305-6279 Get Directions Write a Review

NPPES record last updated: September 17, 2020. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 17, 2020, Mar 20, 2017 (2 updates tracked since 2017).

  • Individual
  • Male
  • Hospitalist

About VIKTOR GAMARNIK

This page provides the complete NPI Profile along with additional information for Viktor Gamarnik, a provider established in New York, New York with a medical specialization in Hospitalist. The healthcare provider is registered in the NPI registry with number 1225579451 assigned on March 2017. The practitioner's primary taxonomy code is 208M00000X with license number 303337 (NY). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1225579451
Provider Name
DR. VIKTOR GAMARNIK M.D., PH.D.
Gender
Male
Entity Type
Individual
Location Address
177 FORT WASHINGTON AVE NEW YORK, NY 10032
Location Phone
(212) 305-6354
Location Fax
(212) 305-6279
Mailing Address
630 W 168TH ST # 4 NEW YORK, NY 10032
Mailing Phone
(212) 305-5138
Mailing Fax
(212) 305-2843
Is Sole Proprietor?
No
Enumeration Date
03-20-2017
Last Update Date
09-17-2020
Code Navigator

Location Map

Secondary Locations

  • 505 E 70th St Weill Cornell Internal Medicine Ass
    New York, NY 10021
    (212) 746-9663

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

Hospitalist

Taxonomy Code
208M00000X
Type
Allopathic & Osteopathic Physicians
License No.
303337
License State
NY
Taxonomy Description
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

303337 (NY)

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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 1225579451, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
2
Unchanged
Pos 3
2
Doubled → 4
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
1
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 2 → 4 5 → 10 → 1 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 4 + 5 + 1 + 0 + 7 + 1 + 8 + 4 + 1 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1225579451.

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 1225579451, enumerated as an "individual" on March 20, 2017.

The provider is located at 177 FORT WASHINGTON AVE NEW YORK, NY 10032 and the phone number is (212) 305-6354.

Hospitalist with taxonomy code 208M00000X.