LEWIS DRUSIN MD
NPI 1427145507
Preventive Medicine - Public Health & General Preventive Medicine in New York, NY

NPI Status: Active since October 09, 2006

Contact Information

520 E 70TH ST # STARR-505
NEW YORK, NY
ZIP 10021
Phone: (212) 746-1754
Fax: (212) 746-8823

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  • Individual
  • Male
  • Preventive Medicine
  • Public Health & General Preventive Medic...

About LEWIS DRUSIN

This page provides the complete NPI Profile along with additional information for Lewis Drusin, a provider established in New York, New York with a medical specialization in Preventive Medicine, focusing in public health & general preventive medicine . The healthcare provider is registered in the NPI registry with number 1427145507 assigned on October 2006. The practitioner's primary taxonomy code is 2083P0901X with license number 094436 (NY). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1427145507
Provider Name
LEWIS DRUSIN MD
Gender
Male
Entity Type
Individual
Location Address
520 E 70TH ST # STARR-505 NEW YORK, NY 10021
Location Phone
(212) 746-1754
Location Fax
(212) 746-8823
Mailing Address
520 E 70TH ST # STARR-505 NEW YORK, NY 10021
Mailing Phone
(212) 746-0373
Mailing Fax
(212) 746-8823
Is Sole Proprietor?
No
Enumeration Date
10-09-2006
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

Preventive Medicine Public Health & General Preventive Medicine

Taxonomy Code
2083P0901X
Type
Allopathic & Osteopathic Physicians
License No.
094436
License State
NY
Taxonomy Description
Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

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)
1207RI0200XAllopathic & Osteopathic Physicians

Internal Medicine
Infectious Disease

094436 (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 1427145507, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 2 + 4 + 1 + 0 + 5 + 0 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1427145507.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Internal Medicine (Pulmonary Disease)
520 E 70TH ST # STARR-505
NEW YORK, NY 10021
Internal Medicine (Pulmonary Disease)
520 E 70TH ST # STARR-505
NEW YORK, NY 10021
Internal Medicine (Pulmonary Disease)
520 E 70TH ST # STARR-505
NEW YORK, NY 10021

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427145507, enumerated as an "individual" on October 09, 2006.

The provider is located at 520 E 70TH ST # STARR-505 NEW YORK, NY 10021 and the phone number is (212) 746-1754.

Preventive Medicine with taxonomy code 2083P0901X and a focus in Public Health & General Preventive Medicine.