DR. MICHAEL STONE M D
NPI 1730221698
Family Medicine - Addiction Medicine in Santa Ana, CA

NPI Status: Active since February 13, 2007

Contact Information

1950 E 17TH ST STE 150
SANTA ANA, CA
ZIP 92705
Phone: (714) 547-4300

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

Individual
Male
Family Medicine
Addiction Medicine

About MICHAEL STONE

This page provides the complete NPI Profile along with additional information for Michael Stone, a provider established in Santa Ana, California with a medical specialization in Family Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1730221698 assigned on February 2007. The practitioner's primary taxonomy code is 207QA0401X with license number A31297 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI: 1730221698
Provider Name: DR. MICHAEL STONE M D
Gender: Male
Entity Type: Individual
Location Address: 1950 E 17TH ST STE 150 SANTA ANA, CA 92705
Location Phone: (714) 547-4300
Mailing Address: 501 PECAN AVE HUNTINGTON BEACH, CA 92648
Mailing Phone: (714) 309-7935
Mailing Fax
Is Sole Proprietor?: No
Enumeration Date: 02-13-2007
Last Update Date: 07-15-2020
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Location Map

Secondary Locations

13682 Yorba St
Tustin, CA 92780
(741) 730-5399

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: Family Medicine Addiction Medicine
Taxonomy Code: 207QA0401X
Type: Allopathic & Osteopathic Physicians
License No.: A31297
License State: CA
Taxonomy Description: A family medicine physician who specializes in the diagnosis and treatment of addictions.

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 1730221698, 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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 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 3 → 6 2 → 4 1 → 2 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 6 + 0 + 4 + 2 + 2 + 6 + 1 + 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 1730221698.