DR. CORDELLA MALLOY PH.D
NPI 1891646683
Counselor - Mental Health in Philadelphia, PA

NPI Status: Active since February 06, 2026

Contact Information

7042 ELMWOOD AVE
PHILADELPHIA, PA
ZIP 19142
Phone: (215) 937-0700

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  • Individual
  • Female
  • Counselor
  • Mental Health

About CORDELLA MALLOY

This page provides the complete NPI Profile along with additional information for Cordella Malloy, a provider established in Philadelphia, Pennsylvania with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1891646683 assigned on February 2026. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated February 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1891646683
Provider Name
DR. CORDELLA MALLOY PH.D
Gender
Female
Entity Type
Individual
Location Address
7042 ELMWOOD AVE PHILADELPHIA, PA 19142
Location Phone
(215) 937-0700
Mailing Address
6543 NORTH GRATS STREET PHILADELPHIA, PA 19126
Mailing Phone
(215) 435-1240
Mailing Fax
Is Sole Proprietor?
Yes
Enumeration Date
02-06-2026
Last Update Date
02-06-2026
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A mental health counselor like Cordella Malloy 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 State
PA

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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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 1891646683, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
4
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 9 → 18 → 9 6 → 12 → 3 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 4 + 1 + 2 + 6 + 1 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1891646683.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Community/Behavioral Health
7042 ELMWOOD AVE
PHILADELPHIA, PA 19142
Clinic/Center (Mental Health (Including Community Mental Health Center))
7042 ELMWOOD AVE
PHILADELPHIA, PA 19142
Counselor (Mental Health)
7042 ELMWOOD AVE
PHILADELPHIA, PA 19142
Counselor (Mental Health)
7042 ELMWOOD AVE
PHILADELPHIA, PA 19142
Clinic/Center (Mental Health (Including Community Mental Health Center))
7042 ELMWOOD AVE
PHILADELPHIA, PA 19142

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891646683, enumerated as an "individual" on February 06, 2026.

The provider is located at 7042 ELMWOOD AVE PHILADELPHIA, PA 19142 and the phone number is (215) 937-0700.

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