DR. ROBERT LOUIS DUFRESNE R.PH. PHD, BCPP,BCPS
NPI 1992814941
Pharmacist - Psychiatric in Providence, RI

NPI Status: Active since August 30, 2006

Contact Information

PROVIDENCE VA MEDICAL CTR
830 CHALKSTONE AVE
PROVIDENCE, RI
ZIP 02918
Phone: (401) 273-7100

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  • Individual
  • Male
  • Pharmacist
  • Psychiatric

About ROBERT DUFRESNE

This page provides the complete NPI Profile along with additional information for Robert Dufresne, a provider established in Providence, Rhode Island with a medical specialization in Pharmacist, focusing in psychiatric . The healthcare provider is registered in the NPI registry with number 1992814941 assigned on August 2006. The practitioner's primary taxonomy code is 1835P1300X with license number 2677 (RI). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1992814941
Provider Name
DR. ROBERT LOUIS DUFRESNE R.PH. PHD, BCPP,BCPS
Gender
Male
Entity Type
Individual
Location Address
PROVIDENCE VA MEDICAL CTR 830 CHALKSTONE AVE PROVIDENCE, RI 02918
Location Phone
(401) 273-7100
Mailing Address
41 LOWER COLLEGE RD KINGSTON, RI 02881
Mailing Phone
(401) 397-1880
Is Sole Proprietor?
No
Enumeration Date
08-30-2006
Last Update Date
03-26-2009
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A pharmacist like Robert Dufresne fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

Location Map

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

Pharmacist Psychiatric

Taxonomy Code
1835P1300X
Type
Pharmacy Service Providers
License No.
2677
License State
RI
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing care of patients with psychiatric illness by assessing and monitoring patients, recognizing drug-induced problems, and recommending appropriate treatment plans.

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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 1992814941, we treat the final digit (1) 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 1).

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
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
Check
1
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 9 → 18 → 9 8 → 16 → 7 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 1 + 6 + 1 + 8 + 9 + 8 + 24 = 79

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

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1992814941.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992814941, enumerated as an "individual" on August 30, 2006.

The provider is located at PROVIDENCE VA MEDICAL CTR 830 CHALKSTONE AVE PROVIDENCE, RI 02918 and the phone number is (401) 273-7100.

Pharmacist with taxonomy code 1835P1300X and a focus in Psychiatric.