DAVID SHIMUNOV MD
NPI 1336725753
Otolaryngology in Stony Brook, NY

NPI Status: Active since March 24, 2021

Contact Information

HSC T19-068
STONY BROOK, NY
ZIP 11794
Phone: (631) 444-7661

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  • Individual
  • Male
  • Otolaryngology

About DAVID SHIMUNOV

This page provides the complete NPI Profile along with additional information for David Shimunov, a provider established in Stony Brook, New York with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1336725753 assigned on March 2021. The practitioner's primary taxonomy code is 207Y00000X with license number 335954 (NY). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1336725753
Provider Name
DAVID SHIMUNOV MD
Gender
Male
Entity Type
Individual
Location Address
HSC T19-068 STONY BROOK, NY 11794
Location Phone
(631) 444-7661
Mailing Address
HSC T19-068 STONY BROOK, NY 11794
Mailing Phone
(631) 444-7661
Is Sole Proprietor?
Yes
Enumeration Date
03-24-2021
Last Update Date
02-17-2026
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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

Otolaryngology

Taxonomy Code
207Y00000X
Type
Allopathic & Osteopathic Physicians
License No.
335954
License State
NY
Taxonomy Description
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

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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 1336725753, 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 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 3 → 6 7 → 14 → 5 5 → 10 → 1 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 1 + 4 + 2 + 1 + 0 + 7 + 1 + 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 1336725753.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336725753, enumerated as an "individual" on March 24, 2021.

The provider is located at HSC T19-068 STONY BROOK, NY 11794 and the phone number is (631) 444-7661.

Otolaryngology with taxonomy code 207Y00000X.