MS. LISA-SUN GRESHAM
NPI 1356753289
Counselor in Greenbrae, CA
NPI Status: Active since May 27, 2014
Contact Information
250 BON AIR RD
UNIT B
GREENBRAE, CA
ZIP 94904
Phone: (415) 473-6835
- Individual
- Female
- Counselor
About LISA-SUN GRESHAM
This page provides the complete NPI Profile along with additional information for Lisa-sun Gresham, a provider established in Greenbrae, California with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1356753289 assigned on May 2014. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and her NPI record was last updated 11 years ago.
- NPI
- 1356753289
- Provider Name
- MS. LISA-SUN GRESHAM
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 250 BON AIR RD UNIT B GREENBRAE, CA 94904
- Location Phone
- (415) 473-6835
- Mailing Address
- 3708 MARKET ST APT A OAKLAND, CA 94608
- Mailing Phone
- (540) 519-9309
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-27-2014
- Last Update Date
- 11-19-2015
- Code Navigator
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
Counselor
- Taxonomy Code
- 101Y00000X
- Type
- Behavioral Health & Social Service Providers
- License State
- CA
- Taxonomy Description
- A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
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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 1356753289, 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.
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 61 is 70. 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.
GREENBRAE, CA 94904
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1356753289, enumerated as an "individual" on May 27, 2014.
The provider is located at 250 BON AIR RD UNIT B GREENBRAE, CA 94904 and the phone number is (415) 473-6835.
Counselor with taxonomy code 101Y00000X.
