CRYSTAL MICHELLE DURGAN MFT
NPI 1710019880
Marriage & Family Therapist in San Diego, CA

NPI Status: Active since March 12, 2007

Contact Information

4077 5TH AVE
SAN DIEGO, CA
ZIP 92103
Phone: (619) 260-7066

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  • Individual
  • Female
  • Marriage & Family Therapist

About CRYSTAL DURGAN

This page provides the complete NPI Profile along with additional information for Crystal Durgan, a provider established in San Diego, California with a medical specialization in Marriage & Family Therapist. The healthcare provider is registered in the NPI registry with number 1710019880 assigned on March 2007. The practitioner's primary taxonomy code is 106H00000X with license number 44252 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1710019880
Provider Name
CRYSTAL MICHELLE DURGAN MFT
Gender
Female
Entity Type
Individual
Location Address
4077 5TH AVE SAN DIEGO, CA 92103
Location Phone
(619) 260-7066
Mailing Address
4860 ROLANDO CT UNIT 91 SAN DIEGO, CA 92115
Mailing Phone
(619) 606-1330
Is Sole Proprietor?
Yes
Enumeration Date
03-12-2007
Last Update Date
07-13-2007
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A marriage and family therapist like Crystal Durgan 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.

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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

Marriage & Family Therapist

Taxonomy Code
106H00000X
Type
Behavioral Health & Social Service Providers
License No.
44252
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 1710019880, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
0
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 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 0 + 1 + 1 + 8 + 8 + 1 + 6 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1710019880.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE, EMERGENCY MEDICINE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Pediatrics (Pediatric Critical Care Medicine)
4077 5TH AVE
SAN DIEGO, CA 92103
Internal Medicine (Cardiovascular Disease)
4077 5TH AVE, MER-35
SAN DIEGO, CA 92103
Anesthesiology
4077 5TH AVE
SAN DIEGO, CA 92103
Psychologist (Clinical)
4077 5TH AVE, D LEVEL, MER 12
SAN DIEGO, CA 92103
Registered Nurse (Psychiatric/Mental Health)
4077 5TH AVE
SAN DIEGO, CA 92103
Registered Nurse (Psychiatric/Mental Health)
4077 5TH AVE, LEVEL D
SAN DIEGO, CA 92103
Social Worker (Clinical)
4077 5TH AVE
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
4077 5TH AVE
SAN DIEGO, CA 92103
Registered Nurse (Registered Nurse First Assistant)
4077 5TH AVE
SAN DIEGO, CA 92103
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4077 5TH AVE, MER35
SAN DIEGO, CA 92103
Psychologist (Clinical)
4077 5TH AVE, BEHAVIORAL HEALTH OUTPATIENT - LEVEL D
SAN DIEGO, CA 92103
Obstetrics & Gynecology
4077 5TH AVE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Family Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Nurse Practitioner (Family)
4077 5TH AVE
SAN DIEGO, CA 92103
Internal Medicine
4077 5TH AVE
SAN DIEGO, CA 92103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710019880, enumerated as an "individual" on March 12, 2007.

The provider is located at 4077 5TH AVE SAN DIEGO, CA 92103 and the phone number is (619) 260-7066.

Marriage & Family Therapist with taxonomy code 106H00000X.