DR. MARK RAYMOND MAHER DDS
NPI 1306823539
Dentist - General Practice in Walnut Creek, CA

NPI Status: Active since December 29, 2005

Contact Information

1855 SAN MIGUEL DR
SUITE 1
WALNUT CREEK, CA
ZIP 94596
Phone: (925) 935-1159
Fax: (925) 935-1146

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  • Individual
  • Male
  • Dentist
  • General Practice

About MARK MAHER

This page provides the complete NPI Profile along with additional information for Mark Maher, a provider established in Walnut Creek, California with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1306823539 assigned on December 2005. The practitioner's primary taxonomy code is 1223G0001X with license number 52887 (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1306823539
Provider Name
DR. MARK RAYMOND MAHER DDS
Gender
Male
Entity Type
Individual
Location Address
1855 SAN MIGUEL DR SUITE 1 WALNUT CREEK, CA 94596
Location Phone
(925) 935-1159
Location Fax
(925) 935-1146
Mailing Address
1855 SAN MIGUEL DR SUITE 1 WALNUT CREEK, CA 94596
Mailing Phone
(925) 935-1159
Mailing Fax
(925) 935-1146
Is Sole Proprietor?
No
Enumeration Date
12-29-2005
Last Update Date
12-02-2008
Code Navigator

A dentist like Mark Maher is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License No.
52887
License State
CA
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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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 1306823539, 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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
0
Doubled → 0
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 8 → 16 → 7 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 0 + 6 + 1 + 6 + 2 + 6 + 5 + 6 + 24 = 61

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.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1306823539.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Ophthalmology
1855 SAN MIGUEL DR, #28
WALNUT CREEK, CA 94596
Ophthalmology
1855 SAN MIGUEL DR, #28
WALNUT CREEK, CA 94596
Podiatrist (Primary Podiatric Medicine)
1855 SAN MIGUEL DR, SUITE 30
WALNUT CREEK, CA 94596
Dentist (General Practice)
1855 SAN MIGUEL DR, SUITE 20
WALNUT CREEK, CA 94596
Dentist (Orthodontics and Dentofacial Orthopedics)
1855 SAN MIGUEL DR, SUITE 22
WALNUT CREEK, CA 94596
Pediatrics
1855 SAN MIGUEL DR, SUITE 15
WALNUT CREEK, CA 94596
Dentist (General Practice)
1855 SAN MIGUEL DR, STE. 27
WALNUT CREEK, CA 94596
Dentist (General Practice)
1855 SAN MIGUEL DR, STE. 27
WALNUT CREEK, CA 94596
Dentist (Periodontics)
1855 SAN MIGUEL DR, SUITE 21
WALNUT CREEK, CA 94596
Psychologist (Clinical)
1855 SAN MIGUEL DR, SUITE 11
WALNUT CREEK, CA 94596
Dentist
1855 SAN MIGUEL DR, SUITE #16
WALNUT CREEK, CA 94596
Plastic Surgery
1855 SAN MIGUEL DR, SUITE 4
WALNUT CREEK, CA 94596
Clinical Neuropsychologist
1855 SAN MIGUEL DR, SUITE 23
WALNUT CREEK, CA 94596
Eyewear Supplier
1855 SAN MIGUEL DR, #27A
WALNUT CREEK, CA 94596
Optometrist
1855 SAN MIGUEL DR, SUITE 28
WALNUT CREEK, CA 94596
Dentist (Pediatric Dentistry)
1855 SAN MIGUEL DR, SUITE 9
WALNUT CREEK, CA 94596
Dentist
1855 SAN MIGUEL DR, SUITE 20
WALNUT CREEK, CA 94596
Clinic/Center (Dental)
1855 SAN MIGUEL DR, SUITE 1
WALNUT CREEK, CA 94596
Dentist (Orthodontics and Dentofacial Orthopedics)
1855 SAN MIGUEL DR, #22
WALNUT CREEK, CA 94596
Dentist (General Practice)
1855 SAN MIGUEL DR, SUITE 12
WALNUT CREEK, CA 94596

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306823539, enumerated as an "individual" on December 29, 2005.

The provider is located at 1855 SAN MIGUEL DR SUITE 1 WALNUT CREEK, CA 94596 and the phone number is (925) 935-1159.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.