HEATHER RYAN PLUNKETT LAPC, MS
NPI 1801776240
Counselor - Mental Health in Haverford, PA

NPI Status: Active since September 05, 2025

Contact Information

600 HAVERFORD RD
HAVERFORD, PA
ZIP 19041
Phone: (610) 649-6344

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  • Individual
  • Female
  • Counselor
  • Mental Health

About HEATHER PLUNKETT

This page provides the complete NPI Profile along with additional information for Heather Plunkett, a provider established in Haverford, Pennsylvania with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1801776240 assigned on September 2025. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1801776240
Provider Name
HEATHER RYAN PLUNKETT LAPC, MS
Other Name
HEATHER RYAN DUFFY
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
600 HAVERFORD RD HAVERFORD, PA 19041
Location Phone
(610) 649-6344
Mailing Address
1424 MICHIGAN AVE SWARTHMORE, PA 19081
Mailing Phone
(610) 883-6759
Is Sole Proprietor?
No
Enumeration Date
09-05-2025
Last Update Date
09-05-2025
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A mental health counselor like Heather Plunkett 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

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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 1801776240, 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
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 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 + 8 + 0 + 1 + 1 + 4 + 7 + 1 + 2 + 2 + 8 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1801776240.

Other Providers at the Same Location


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

Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Family Medicine
600 HAVERFORD RD, SUITE 205
HAVERFORD, PA 19041
Social Worker (Clinical)
600 HAVERFORD RD, SUITE G104
HAVERFORD, PA 19041
Social Worker (Clinical)
600 HAVERFORD RD, SUITE G104
HAVERFORD, PA 19041
Nurse Practitioner (Pediatrics)
600 HAVERFORD RD
HAVERFORD, PA 19041
Dentist
600 HAVERFORD RD, SUITE G-100
HAVERFORD, PA 19041
Counselor (Mental Health)
600 HAVERFORD RD, SUITE G104
HAVERFORD, PA 19041
Reflexologist
600 HAVERFORD RD, SUITE 200
HAVERFORD, PA 19041
Pediatrics
600 HAVERFORD RD, SUITE 100
HAVERFORD, PA 19041
Social Worker (Clinical)
600 HAVERFORD RD, SUITE 201
HAVERFORD, PA 19041
Counselor (Professional)
600 HAVERFORD RD
HAVERFORD, PA 19041
Social Worker (Clinical)
600 HAVERFORD RD, SUITE 201
HAVERFORD, PA 19041
Dentist (Periodontics)
600 HAVERFORD RD, STE 202
HAVERFORD, PA 19041
Counselor (Professional)
600 HAVERFORD RD
HAVERFORD, PA 19041

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801776240, enumerated as an "individual" on September 05, 2025.

The provider is located at 600 HAVERFORD RD HAVERFORD, PA 19041 and the phone number is (610) 649-6344.

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