CHRISTOPHER JAMES DRENNEN MS,IMFT
NPI 1447374889
Marriage & Family Therapist in Los Angeles, CA

NPI Status: Active since March 19, 2007

Contact Information

4618 FOUNTAIN AVE
#102
LOS ANGELES, CA
ZIP 90029
Phone: (323) 644-6180
Fax: (323) 663-2448

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  • Individual
  • Male
  • Marriage & Family Therapist

About CHRISTOPHER DRENNEN

This page provides the complete NPI Profile along with additional information for Christopher Drennen, a provider established in Los Angeles, California with a medical specialization in Marriage & Family Therapist. The healthcare provider is registered in the NPI registry with number 1447374889 assigned on March 2007. The practitioner's primary taxonomy code is 106H00000X with license number IMF51939 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1447374889
Provider Name
CHRISTOPHER JAMES DRENNEN MS,IMFT
Gender
Male
Entity Type
Individual
Location Address
4618 FOUNTAIN AVE #102 LOS ANGELES, CA 90029
Location Phone
(323) 644-6180
Location Fax
(323) 663-2448
Mailing Address
8130 NORTON AVE #17 WEST HOLLYWOOD, CA 90046
Mailing Phone
(323) 650-3120
Is Sole Proprietor?
No
Enumeration Date
03-19-2007
Last Update Date
07-08-2007
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A marriage and family therapist like Christopher Drennen help patients manage problems with their family and other relationships. Marriage and family therapists encourage clients to discuss their emotions and experiences and, develop strategies and skills to change behavior and cope with difficult situations. Many therapists apply cognitive behavioral therapy to help patients understand harmful thoughts, feelings, and also teach patients how to replace them with positive, life-enhancing ones.

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

Marriage & Family Therapist

Taxonomy Code
106H00000X
Type
Behavioral Health & Social Service Providers
License No.
IMF51939
License State
CA
Taxonomy Description
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

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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 1447374889, 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 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
4
Unchanged
Pos 3
4
Doubled → 8
Pos 4
7
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
4
Doubled → 8
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 4 → 8 3 → 6 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 8 + 7 + 6 + 7 + 8 + 8 + 1 + 6 + 24 = 81

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

The next multiple of ten after 81 is 90. The difference is the calculated check digit.

90 - 81 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1447374889.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Nurse Practitioner
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Social Worker (Clinical)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Case Manager/Care Coordinator
4618 FOUNTAIN AVE, SUITE 102
LOS ANGELES, CA 90029
Social Worker (Clinical)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Internal Medicine (Cardiovascular Disease)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Nurse Practitioner (Adult Health)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Nurse Practitioner (Family)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Community Health Worker
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Family Medicine
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Community Health Worker
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Social Worker (Clinical)
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Community Health Worker
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Community Health Worker
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Pharmacist
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Community/Behavioral Health
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Pharmacist
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Dentist
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Family Medicine
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029
Optometrist
4618 FOUNTAIN AVE
LOS ANGELES, CA 90029

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447374889, enumerated as an "individual" on March 19, 2007.

The provider is located at 4618 FOUNTAIN AVE #102 LOS ANGELES, CA 90029 and the phone number is (323) 644-6180.

Marriage & Family Therapist with taxonomy code 106H00000X.