DR. CHRISTOPHER FA DE CHANG DO
NPI 1720621303
Psychiatry & Neurology - Psychiatry in Stockton, CA
NPI Status: Active since October 25, 2019
Contact Information
7707 AUSTIN RD
STOCKTON, CA
ZIP 95215
Phone: (626) 975-8374
- Individual
- Male
- Psychiatry & Neurology
- Psychiatry
About CHRISTOPHER CHANG
This page provides the complete NPI Profile along with additional information for Christopher Chang, a provider established in Stockton, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1720621303 assigned on October 2019. The practitioner's primary taxonomy code is 2084P0800X with license number 17607 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.
- NPI
- 1720621303
- Provider Name
- DR. CHRISTOPHER FA DE CHANG DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 7707 AUSTIN RD STOCKTON, CA 95215
- Location Phone
- (626) 975-8374
- Mailing Address
- P.O. BOX 1372 EL CERRITO, CA 94530
- Mailing Phone
- (626) 975-8374
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-25-2019
- Last Update Date
- 10-08-2021
- Code Navigator
A psychiatrist like Christopher Chang are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.
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
Psychiatry & Neurology Psychiatry
- Taxonomy Code
- 2084P0800X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 17607
- License State
- CA
- Taxonomy Description
- A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
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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 1720621303, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 47 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
STOCKTON, CA 95215
STOCKTON, CA 95215
STOCKTON, CA 95215
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1720621303, enumerated as an "individual" on October 25, 2019.
The provider is located at 7707 AUSTIN RD STOCKTON, CA 95215 and the phone number is (626) 975-8374.
Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.
