OLIVIA DISILVESTRE MS, GC
NPI 1467381269
Genetic Counselor, MS in West Islip, NY

NPI Status: Active since May 18, 2026

Contact Information

1000 MONTAUK HWY
WEST ISLIP, NY
ZIP 11795
Phone: (631) 376-4050
Fax: (631) 376-3649

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  • Individual
  • Female
  • Genetic Counselor, MS

About OLIVIA DISILVESTRE

This page provides the complete NPI Profile along with additional information for Olivia Disilvestre, a provider established in West Islip, New York with a medical specialization in Genetic Counselor, Ms. The healthcare provider is registered in the NPI registry with number 1467381269 assigned on May 2026. The practitioner's primary taxonomy code is 170300000X. The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1467381269
Provider Name
OLIVIA DISILVESTRE MS, GC
Gender
Female
Entity Type
Individual
Location Address
1000 MONTAUK HWY WEST ISLIP, NY 11795
Location Phone
(631) 376-4050
Location Fax
(631) 376-3649
Mailing Address
1000 MONTAUK HWY WEST ISLIP, NY 11795
Mailing Phone
(631) 376-4050
Mailing Fax
(631) 376-3649
Is Sole Proprietor?
No
Enumeration Date
05-18-2026
Last Update Date
05-18-2026
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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

Genetic Counselor, MS

Taxonomy Code
170300000X
Type
Other Service Providers
License State
NY
Taxonomy Description
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.

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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 1467381269, 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
4
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
7
Unchanged
Pos 5
3
Doubled → 6
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 6 → 12 → 3 3 → 6 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 2 + 7 + 6 + 8 + 2 + 2 + 1 + 2 + 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 1467381269.

Other Providers at the Same Location


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

Internal Medicine
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Internal Medicine
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pediatrics (Pediatric Critical Care Medicine)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pediatrics (Pediatric Critical Care Medicine)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pediatrics (Neonatal-Perinatal Medicine)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pediatrics (Neonatal-Perinatal Medicine)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pediatrics (Neonatal-Perinatal Medicine)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Nurse Practitioner (Pediatrics)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY, DEPARTMENT OF PATHOLOGY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Pathology (Anatomic Pathology & Clinical Pathology)
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Anesthesiology
1000 MONTAUK HWY, GOOD SAMARITAN HOSPITAL
WEST ISLIP, NY 11795
Anesthesiology
1000 MONTAUK HWY
WEST ISLIP, NY 11795
Anesthesiology
1000 MONTAUK HWY, GOOD SAMARITAN HOSPITAL MEDICAL CENTER
WEST ISLIP, NY 11795
Anesthesiology
1000 MONTAUK HWY, GOOD SAMARITAN HOSPITAL
WEST ISLIP, NY 11795
Anesthesiology
1000 MONTAUK HWY
WEST ISLIP, NY 11795

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1467381269, enumerated as an "individual" on May 18, 2026.

The provider is located at 1000 MONTAUK HWY WEST ISLIP, NY 11795 and the phone number is (631) 376-4050.

Genetic Counselor, MS with taxonomy code 170300000X.