DR. GILLIAN PEARIS M.D.
NPI 1689731820
Psychiatry & Neurology - Child & Adolescent Psychiatry in Providence, RI

NPI Status: Active since January 03, 2007

Contact Information

339 ANGELL ST
PROVIDENCE, RI
ZIP 02906
Phone: (401) 521-1400
Fax: (401) 521-3456

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  • Individual
  • Female
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry

About GILLIAN PEARIS

This page provides the complete NPI Profile along with additional information for Gillian Pearis, a provider established in Providence, Rhode Island with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1689731820 assigned on January 2007. The practitioner's primary taxonomy code is 2084P0804X with license number MD11437 (RI). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1689731820
Provider Name
DR. GILLIAN PEARIS M.D.
Gender
Female
Entity Type
Individual
Location Address
339 ANGELL ST PROVIDENCE, RI 02906
Location Phone
(401) 521-1400
Location Fax
(401) 521-3456
Mailing Address
339 ANGELL ST PROVIDENCE, RI 02906
Mailing Phone
(401) 521-1400
Mailing Fax
(401) 521-3456
Is Sole Proprietor?
Yes
Enumeration Date
01-03-2007
Last Update Date
07-08-2007
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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

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
MD11437
License State
RI
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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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 1689731820, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
3
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
Check
0
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 8 → 16 → 7 7 → 14 → 5 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 4 + 3 + 2 + 8 + 4 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1689731820.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Psychologist (Clinical)
339 ANGELL ST
PROVIDENCE, RI 02906
Social Worker (Clinical)
339 ANGELL ST
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
339 ANGELL ST
PROVIDENCE, RI 02906
Psychologist
339 ANGELL ST
PROVIDENCE, RI 02906

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689731820, enumerated as an "individual" on January 03, 2007.

The provider is located at 339 ANGELL ST PROVIDENCE, RI 02906 and the phone number is (401) 521-1400.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.