D. WAYNE POPPALARDO, LLC
NPI 1912026717
Counselor - Professional in Philadelphia, PA

NPI Status: Active since March 29, 2007

Contact Information

135 S 19TH ST
SUITE 240
PHILADELPHIA, PA
ZIP 19103
Phone: (215) 561-4466

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  • Organization
  • Counselor
  • Professional

About D. WAYNE POPPALARDO, LLC

This page provides the complete NPI Profile along with additional information for D. Wayne Poppalardo, Llc, a provider established in Philadelphia, Pennsylvania operating as a Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1912026717 assigned on March 2007. The practitioner's primary taxonomy code is 101YP2500X with license number 00951 (NJ). The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Wayne Poppalardo M.a. (Psychologist)

NPI
1912026717
Provider Name
D. WAYNE POPPALARDO, LLC
Entity Type
Organization
Location Address
135 S 19TH ST SUITE 240 PHILADELPHIA, PA 19103
Location Phone
(215) 561-4466
Mailing Address
118 N HADDON AVE HADDONFIELD, NJ 08033
Mailing Phone
(856) 428-6644
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-29-2007
Last Update Date
09-11-2025
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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 Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
00951
License State
NJ

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

PS003474L (PA)

Group Taxonomy 193400000X MULTIPLE 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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

WAYNE POPPALARDO M.A.

Authorized Official Title
PSYCHOLOGIST
Authorized Official Phone
(856) 428-6644

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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 1912026717, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 0 + 2 + 1 + 2 + 7 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1912026717.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Internal Medicine
135 S 19TH ST
PHILADELPHIA, PA 19103
Psychiatry & Neurology (Psychiatry)
135 S 19TH ST, THE WELLINGTON, SUITE 230
PHILADELPHIA, PA 19103
Psychiatry & Neurology (Psychiatry)
135 S 19TH ST, SUITE 230
PHILADELPHIA, PA 19103
Social Worker (Clinical)
135 S 19TH ST, THE WELLLINGTON SUITE 320
PHILADELPHIA, PA 19103
Pharmacist
135 S 19TH ST, APT. 903
PHILADELPHIA, PA 19103
Social Worker (Clinical)
135 S 19TH ST, SUITE 250
PHILADELPHIA, PA 19103
Psychologist (Clinical)
135 S 19TH ST, #250
PHILADELPHIA, PA 19103
Psychologist (Clinical)
135 S 19TH ST, SUITE 250
PHILADELPHIA, PA 19103
Psychiatry & Neurology (Psychiatry)
135 S 19TH ST
PHILADELPHIA, PA 19103
Psychologist
135 S 19TH ST, SUITE 240
PHILA, PA 19103
Psychiatry & Neurology (Psychiatry)
135 S 19TH ST, SUITE 310
PHILADELPHIA, PA 19103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912026717, enumerated as an "organization" on March 29, 2007.

The provider is located at 135 S 19TH ST SUITE 240 PHILADELPHIA, PA 19103 and the phone number is (215) 561-4466.

Counselor with taxonomy code 101YP2500X and a focus in Professional.