MR. MICHAEL GRANT SR.
NPI 1083161848
Substance Abuse Rehabilitation Facility in San Francisco, CA

NPI Status: Active since September 08, 2016

Contact Information

1601 QUESADA AVE
SAN FRANCISCO, CA
ZIP 94124
Phone: (415) 822-5977
Fax: (415) 671-1043

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Substance Abuse Rehabilitation Facility

About MICHAEL GRANT

This page provides the complete NPI Profile along with additional information for Michael Grant, a provider established in San Francisco, California with a medical specialization in Substance Abuse Rehabilitation Facility. The healthcare provider is registered in the NPI registry with number 1083161848 assigned on September 2016. The practitioner's primary taxonomy code is 324500000X. The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI: 1083161848
Provider Name: MR. MICHAEL GRANT SR.
Gender: Male
Entity Type: Individual
Location Address: 1601 QUESADA AVE SAN FRANCISCO, CA 94124
Location Phone: (415) 822-5977
Location Fax: (415) 671-1043
Mailing Address: 1601 QUESADA AVE SAN FRANCISCO, CA 94124
Mailing Phone: (415) 822-5977
Mailing Fax: (415) 671-1043
Is Sole Proprietor?: Yes
Enumeration Date: 09-08-2016
Last Update Date: 09-08-2016
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: Substance Abuse Rehabilitation Facility
Taxonomy Code: 324500000X
Type: Residential Treatment Facilities
License State: CA
Taxonomy Description: A facility or distinct part of a facility that provides a 24 hr therapeutically planned living and rehabilitative intervention environment for the treatment of individuals with disorders in the abuse of drugs, alcohol, and other substances.

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 1083161848, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 8

Check

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 8 → 16 → 7 1 → 2 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 2 + 6 + 2 + 8 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1083161848.