WEI KI ELSIE CHAN PSY.D
NPI 1801029624
Psychologist - Clinical Child & Adolescent in San Francisco, CA

NPI Status: Active since August 27, 2009

Contact Information

720 SACRAMENTO ST
SAN FRANCISCO, CA
ZIP 94108
Phone: (415) 392-4453
Fax: (415) 433-0953

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  • Individual
  • Female
  • Psychologist
  • Clinical Child & Adolescent

About WEI KI CHAN

This page provides the complete NPI Profile along with additional information for Wei Ki Chan, a provider established in San Francisco, California with a medical specialization in Psychologist, focusing in clinical child & adolescent . The healthcare provider is registered in the NPI registry with number 1801029624 assigned on August 2009. The practitioner's primary taxonomy code is 103TC2200X with license number PSY26813 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1801029624
Provider Name
WEI KI ELSIE CHAN PSY.D
Gender
Female
Entity Type
Individual
Location Address
720 SACRAMENTO ST SAN FRANCISCO, CA 94108
Location Phone
(415) 392-4453
Location Fax
(415) 433-0953
Mailing Address
747 52ND ST OAKLAND, CA 94609
Mailing Phone
(510) 428-3885
Mailing Fax
(415) 433-0953
Is Sole Proprietor?
No
Enumeration Date
08-27-2009
Last Update Date
04-16-2021
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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 Clinical Child & Adolescent

Taxonomy Code
103TC2200X
Type
Behavioral Health & Social Service Providers
License No.
PSY26813
License State
CA
Taxonomy Description
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

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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 1801029624, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 0 + 2 + 1 + 8 + 6 + 4 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1801029624.

Other Providers at the Same Location


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

Social Worker (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Social Worker (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Psychologist (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor (Mental Health)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Social Worker (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor (Mental Health)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor (Mental Health)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Social Worker (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Student in an Organized Health Care Education/Training Program
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor (Mental Health)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Psychologist (Clinical)
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Student in an Organized Health Care Education/Training Program
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Marriage & Family Therapist
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor (Mental Health)
720 SACRAMENTO ST, 2/F
SAN FRANCISCO, CA 94108
Marriage & Family Therapist
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Specialist
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Marriage & Family Therapist
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108
Counselor
720 SACRAMENTO ST
SAN FRANCISCO, CA 94108

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801029624, enumerated as an "individual" on August 27, 2009.

The provider is located at 720 SACRAMENTO ST SAN FRANCISCO, CA 94108 and the phone number is (415) 392-4453.

Psychologist with taxonomy code 103TC2200X and a focus in Clinical Child & Adolescent.