MARY ANN BLUMENTHAL PSYD
NPI 1912792029
Psychologist - Cognitive & Behavioral in Media, PA

NPI Status: Active since April 10, 2025

Contact Information

107 CHESLEY DR STE 2
MEDIA, PA
ZIP 19063
Phone: (610) 529-1875

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  • Individual
  • Female
  • Psychologist
  • Cognitive & Behavioral

About MARY BLUMENTHAL

This page provides the complete NPI Profile along with additional information for Mary Blumenthal, a provider established in Media, Pennsylvania with a medical specialization in Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1912792029 assigned on April 2025. The practitioner's primary taxonomy code is 103TB0200X with license number PS020450 (PA). The provider is registered as an individual and her 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.

NPI
1912792029
Provider Name
MARY ANN BLUMENTHAL PSYD
Other Name
MARY ANN COLLINS
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
107 CHESLEY DR STE 2 MEDIA, PA 19063
Location Phone
(610) 529-1875
Mailing Address
1358 BERWYN PAOLI RD BERWYN, PA 19312
Is Sole Proprietor?
Yes
Enumeration Date
04-10-2025
Last Update Date
04-10-2025
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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

Psychologist Cognitive & Behavioral

Taxonomy Code
103TB0200X
Type
Behavioral Health & Social Service Providers
License No.
PS020450
License State
PA
Taxonomy Description
A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.

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 1912792029, 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
9
Unchanged
Pos 3
1
Doubled → 2
Pos 4
2
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
9
Unchanged
Pos 7
2
Doubled → 4
Pos 8
0
Unchanged
Pos 9
2
Doubled → 4
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 1 → 2 7 → 14 → 5 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 1 + 4 + 9 + 4 + 0 + 4 + 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 1912792029.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Counselor (Professional)
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist (Clinical)
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist
107 CHESLEY DR STE 2
MEDIA, PA 19063
Student in an Organized Health Care Education/Training Program
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist (Clinical)
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist (Clinical)
107 CHESLEY DR STE 2
MEDIA, PA 19063
Psychologist (Clinical)
107 CHESLEY DR STE 2
MEDIA, PA 19063
Social Worker (Clinical)
107 CHESLEY DR STE 2
MEDIA, PA 19063

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912792029, enumerated as an "individual" on April 10, 2025.

The provider is located at 107 CHESLEY DR STE 2 MEDIA, PA 19063 and the phone number is (610) 529-1875.

Psychologist with taxonomy code 103TB0200X and a focus in Cognitive & Behavioral.