Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. CYNTHIA KAPLAN M.D.
NPI 1235177239
Pathology - Anatomic Pathology & Clinical Pathology in Stony Brook, NY

Active since June 02, 2006
UNIVERSITY HOSPITAL, STONY BROOK, NY 11794(631) 444-2226 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About CYNTHIA KAPLAN

This page provides the complete NPI Profile along with additional information for Cynthia Kaplan, a provider established in Stony Brook, New York with a medical specialization in Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1235177239 assigned on June 2006. The practitioner's primary taxonomy code is 207ZP0102X with license number 135663 (NY). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1235177239
Provider Name
DR. CYNTHIA KAPLAN M.D.
Gender
Female
Entity Type
Individual
Location Address
UNIVERSITY HOSPITAL STONY BROOK, NY 11794
Location Phone
(631) 444-2226
Mailing Address
PO BOX 1559 STONY BROOK, NY 11790
Mailing Phone
(631) 444-2226
Is Sole Proprietor?
No
Enumeration Date
06-02-2006
Last Update Date
07-13-2026
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
135663
License State
NY
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

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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 1235177239, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
3
Doubled → 6
Pos 4
5
Unchanged
Pos 5
1
Doubled → 2
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 1 → 2 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 2 + 7 + 1 + 4 + 2 + 6 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1235177239.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Nurse Practitioner (Adult Health)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Surgery (Surgical Critical Care)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Neuropathology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Anatomic Pathology & Clinical Pathology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Anatomic Pathology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Anatomic Pathology & Clinical Pathology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Anatomic Pathology & Clinical Pathology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794
Radiology (Neuroradiology)
UNIVERSITY HOSPITAL
STONY BROOK, NY 11794

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235177239, enumerated as an "individual" on June 02, 2006.

The provider is located at UNIVERSITY HOSPITAL STONY BROOK, NY 11794 and the phone number is (631) 444-2226.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.