ELLEN S HENDRIKSEN PH.D.
NPI 1952592909
Psychologist - Cognitive & Behavioral in Boston, MA

NPI Status: Active since August 06, 2007

Contact Information

900 COMMONWEALTH AVE
BOSTON, MA
ZIP 02215
Phone: (617) 353-9610

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  • Individual
  • Female
  • Psychologist
  • Cognitive & Behavioral

About ELLEN HENDRIKSEN

This page provides the complete NPI Profile along with additional information for Ellen Hendriksen, a provider established in Boston, Massachusetts with a medical specialization in Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1952592909 assigned on August 2007. The practitioner's primary taxonomy code is 103TB0200X with license number 25173 (CA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1952592909
Provider Name
ELLEN S HENDRIKSEN PH.D.
Gender
Female
Entity Type
Individual
Location Address
900 COMMONWEALTH AVE BOSTON, MA 02215
Location Phone
(617) 353-9610
Mailing Address
900 COMMONWEALTH AVE BOSTON, MA 02215
Mailing Phone
(617) 353-9610
Is Sole Proprietor?
No
Enumeration Date
08-06-2007
Last Update Date
06-27-2023
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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.
25173
License State
CA
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.

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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 1952592909, 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
5
Doubled → 10 → 1 + 0
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
9
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
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 5 → 10 → 1 5 → 10 → 1 2 → 4 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 0 + 2 + 1 + 0 + 9 + 4 + 9 + 0 + 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 1952592909.

Other Providers at the Same Location


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

Pharmacy
900 COMMONWEALTH AVE
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
900 COMMONWEALTH AVE
BOSTON, MA 02215
Optometrist
900 COMMONWEALTH AVE
BOSTON, MA 02215
Pharmacist
900 COMMONWEALTH AVE
BOSTON, MA 02215
Pharmacist
900 COMMONWEALTH AVE
BOSTON, MA 02215
Counselor (Mental Health)
900 COMMONWEALTH AVE
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
900 COMMONWEALTH AVE, 2ND FLOOR, CARD
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
900 COMMONWEALTH AVE
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
900 COMMONWEALTH AVE, SECOND FLOOR RM 264
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
900 COMMONWEALTH AVE
BOSTON, MA 02215
Pharmacist
900 COMMONWEALTH AVE
BOSTON, MA 02215
Psychologist
900 COMMONWEALTH AVE, 2ND FLOOR
BOSTON, MA 02215

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952592909, enumerated as an "individual" on August 06, 2007.

The provider is located at 900 COMMONWEALTH AVE BOSTON, MA 02215 and the phone number is (617) 353-9610.

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