BRIAN WELCH PSY.D.
NPI 1669623252
Psychologist - Clinical in Philadelphia, PA

NPI Status: Active since October 01, 2008

Contact Information

1315 WALNUT ST STE 1700
PHILADELPHIA, PA
ZIP 19107
Phone: (267) 702-4747

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  • Individual
  • Male
  • Psychologist
  • Clinical

About BRIAN WELCH

This page provides the complete NPI Profile along with additional information for Brian Welch, a provider established in Philadelphia, Pennsylvania with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1669623252 assigned on October 2008. The practitioner's primary taxonomy code is 103TC0700X with license number PS017885 (PA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1669623252
Provider Name
BRIAN WELCH PSY.D.
Gender
Male
Entity Type
Individual
Location Address
1315 WALNUT ST STE 1700 PHILADELPHIA, PA 19107
Location Phone
(267) 702-4747
Mailing Address
1315 WALNUT ST STE 1700 PHILADELPHIA, PA 19107
Mailing Phone
(267) 702-4747
Is Sole Proprietor?
Yes
Enumeration Date
10-01-2008
Last Update Date
06-30-2022
Code Navigator

A clinical psychologist like Brian Welch assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

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

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
License No.
PS017885
License State
PA
Taxonomy Description
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

019683 (NY)

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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 1669623252, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
2
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 6 → 12 → 3 6 → 12 → 3 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 1 + 2 + 2 + 6 + 2 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1669623252.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Social Worker (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Psychologist (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Psychologist (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Clinic/Center (Adult Mental Health)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Social Worker (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Social Worker (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Social Worker (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Marriage & Family Therapist
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107
Social Worker (Clinical)
1315 WALNUT ST STE 1700
PHILADELPHIA, PA 19107

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669623252, enumerated as an "individual" on October 01, 2008.

The provider is located at 1315 WALNUT ST STE 1700 PHILADELPHIA, PA 19107 and the phone number is (267) 702-4747.

Psychologist with taxonomy code 103TC0700X and a focus in Clinical.