DR. BARRY CRAIG MAST O.D.
NPI 1396996203
Optometrist in Santa Barbara, CA

NPI Status: Active since October 09, 2008

Contact Information

1 S MILPAS ST
A
SANTA BARBARA, CA
ZIP 93103
Phone: (805) 884-8465
Fax: (805) 884-8467

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  • Individual
  • Male
  • Optometrist

About BARRY MAST

This page provides the complete NPI Profile along with additional information for Barry Mast, a provider established in Santa Barbara, California with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1396996203 assigned on October 2008. The practitioner's primary taxonomy code is 152W00000X with license number 8279T (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1396996203
Provider Name
DR. BARRY CRAIG MAST O.D.
Gender
Male
Entity Type
Individual
Location Address
1 S MILPAS ST A SANTA BARBARA, CA 93103
Location Phone
(805) 884-8465
Location Fax
(805) 884-8467
Mailing Address
1 S MILPAS ST A SANTA BARBARA, CA 93103
Mailing Phone
(805) 884-8465
Mailing Fax
(805) 884-8467
Is Sole Proprietor?
Yes
Enumeration Date
10-09-2008
Last Update Date
10-09-2008
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
8279T
License State
CA
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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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 1396996203, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
9
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
0
Doubled → 0
Check
3
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 9 → 18 → 9 9 → 18 → 9 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 8 + 6 + 1 + 8 + 9 + 1 + 2 + 2 + 0 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1396996203.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Optometrist
1 S MILPAS ST, SUITE A
SANTA BARBARA, CA 93103
Technician/Technologist (Optician)
1 S MILPAS ST
SANTA BARBARA, CA 93103
Optometrist
1 S MILPAS ST
SANTA BARBARA, CA 93103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1396996203, enumerated as an "individual" on October 09, 2008.

The provider is located at 1 S MILPAS ST A SANTA BARBARA, CA 93103 and the phone number is (805) 884-8465.

Optometrist with taxonomy code 152W00000X.