MADELYN DAWN MARSHALL LGPC
NPI 1841007499
Counselor - Mental Health in Columbia, MD

NPI Status: Active since December 17, 2024

Contact Information

10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD
ZIP 21044
Phone: (443) 274-4147
Fax: (443) 256-9455

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  • Individual
  • Female
  • Counselor
  • Mental Health

About MADELYN MARSHALL

This page provides the complete NPI Profile along with additional information for Madelyn Marshall, a provider established in Columbia, Maryland with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1841007499 assigned on December 2024. The practitioner's primary taxonomy code is 101YM0800X with license number LGP15745 (MD). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1841007499
Provider Name
MADELYN DAWN MARSHALL LGPC
Gender
Female
Entity Type
Individual
Location Address
10025 GOVERNOR WARFIELD PKWY STE 206 COLUMBIA, MD 21044
Location Phone
(443) 274-4147
Location Fax
(443) 256-9455
Mailing Address
10025 GOVERNOR WARFIELD PKWY STE 206 COLUMBIA, MD 21044
Mailing Phone
(443) 274-4147
Mailing Fax
(443) 256-9455
Is Sole Proprietor?
No
Enumeration Date
12-17-2024
Last Update Date
12-17-2024
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A mental health counselor like Madelyn Marshall 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.
LGP15745
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 1841007499, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 0 + 0 + 1 + 4 + 4 + 1 + 8 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1841007499.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Psychologist
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044
Counselor (Mental Health)
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044
Social Worker
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044
Counselor (Mental Health)
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044
Counselor (Mental Health)
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044
Counselor (Mental Health)
10025 GOVERNOR WARFIELD PKWY STE 206
COLUMBIA, MD 21044

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841007499, enumerated as an "individual" on December 17, 2024.

The provider is located at 10025 GOVERNOR WARFIELD PKWY STE 206 COLUMBIA, MD 21044 and the phone number is (443) 274-4147.

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