PAULINA MARIA DUFFY
NPI 1407736143
Counselor - Mental Health in Rockville, MD

NPI Status: Active since September 04, 2025

Contact Information

6000 EXECUTIVE BLVD
ROCKVILLE, MD
ZIP 20852
Phone: (240) 551-0725

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  • Individual
  • Female
  • Counselor
  • Mental Health

About PAULINA DUFFY

This page provides the complete NPI Profile along with additional information for Paulina Duffy, a provider established in Rockville, Maryland with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1407736143 assigned on September 2025. The practitioner's primary taxonomy code is 101YM0800X with license number LGP16649 (MD). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1407736143
Provider Name
PAULINA MARIA DUFFY
Gender
Female
Entity Type
Individual
Location Address
6000 EXECUTIVE BLVD ROCKVILLE, MD 20852
Location Phone
(240) 551-0725
Mailing Address
26601B MULLINIX MILL RD MOUNT AIRY, MD 21771
Is Sole Proprietor?
No
Enumeration Date
09-04-2025
Last Update Date
09-04-2025
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A mental health counselor like Paulina Duffy provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
LGP16649
License State
MD

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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 1407736143, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
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 0 → 0 7 → 14 → 5 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 4 + 3 + 1 + 2 + 1 + 8 + 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 1407736143.

Other Providers at the Same Location


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

Physical Therapist
6000 EXECUTIVE BLVD, STE 201
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE 625
ROCKVILLE, MD 20852
Allergy & Immunology
6000 EXECUTIVE BLVD, SUITE 615
NORTH BETHESDA, MD 20852
Internal Medicine
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Urology
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Internal Medicine
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Internal Medicine
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Obstetrics & Gynecology (Gynecology)
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Internal Medicine
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Internal Medicine
6000 EXECUTIVE BLVD, SUITE 300
ROCKVILLE, MD 20852
Orthopaedic Surgery
6000 EXECUTIVE BLVD, SUITE 510
ROCKVILLE, MD 20852
Orthopaedic Surgery
6000 EXECUTIVE BLVD, SUITE 510
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE 310
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE 310
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE 310
ROCKVILLE, MD 20852
Radiology (Diagnostic Radiology)
6000 EXECUTIVE BLVD, SUITE 302
ROCKVILLE, MD 20852
Clinic/Center (Radiology)
6000 EXECUTIVE BLVD, SUITE 302
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE 310
ROCKVILLE, MD 20852
Pediatrics
6000 EXECUTIVE BLVD, SUITE115
ROCKVILLE, MD 20852
Psychiatry & Neurology (Neurology)
6000 EXECUTIVE BLVD
NORTH BETHESDA, MD 20852

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407736143, enumerated as an "individual" on September 04, 2025.

The provider is located at 6000 EXECUTIVE BLVD ROCKVILLE, MD 20852 and the phone number is (240) 551-0725.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.