MS. MARY LOUISE HOLROYD LMHC
NPI 1619770294
Counselor - Mental Health in Jupiter, FL

NPI Status: Active since March 31, 2025

Contact Information

609 N HEPBURN AVE STE 206
JUPITER, FL
ZIP 33458
Phone: (561) 951-8089

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  • Individual
  • Female
  • Counselor
  • Mental Health

About MARY HOLROYD

This page provides the complete NPI Profile along with additional information for Mary Holroyd, a provider established in Jupiter, Florida with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1619770294 assigned on March 2025. The practitioner's primary taxonomy code is 101YM0800X with license number MH13692 (FL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1619770294
Provider Name
MS. MARY LOUISE HOLROYD LMHC
Gender
Female
Entity Type
Individual
Location Address
609 N HEPBURN AVE STE 206 JUPITER, FL 33458
Location Phone
(561) 951-8089
Mailing Address
2108 21ST CT # 45D JUPITER, FL 33477
Mailing Phone
(561) 951-8089
Is Sole Proprietor?
Yes
Enumeration Date
03-31-2025
Last Update Date
03-31-2025
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A mental health counselor like Mary Holroyd 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.

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
MH13692
License State
FL

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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 1619770294, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 1 → 2 7 → 14 → 5 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 4 + 7 + 0 + 2 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1619770294.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619770294, enumerated as an "individual" on March 31, 2025.

The provider is located at 609 N HEPBURN AVE STE 206 JUPITER, FL 33458 and the phone number is (561) 951-8089.

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