DR. THOMAS PATRICK MACK D.D.S.
NPI 1750422853
Dentist - Endodontics in Los Altos, CA

NPI Status: Active since February 09, 2007

Contact Information

63 BAY TREE LN
LOS ALTOS, CA
ZIP 94022
Phone: (650) 941-6909
Fax: (650) 942-1839

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  • Individual
  • Male
  • Dentist
  • Endodontics

About THOMAS MACK

This page provides the complete NPI Profile along with additional information for Thomas Mack, a provider established in Los Altos, California with a medical specialization in Dentist, focusing in endodontics . The healthcare provider is registered in the NPI registry with number 1750422853 assigned on February 2007. The practitioner's primary taxonomy code is 1223E0200X with license number 22246 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1750422853
Provider Name
DR. THOMAS PATRICK MACK D.D.S.
Gender
Male
Entity Type
Individual
Location Address
63 BAY TREE LN LOS ALTOS, CA 94022
Location Phone
(650) 941-6909
Location Fax
(650) 942-1839
Mailing Address
63 BAY TREE LN LOS ALTOS, CA 94022
Mailing Phone
(650) 941-6909
Mailing Fax
(650) 942-1839
Is Sole Proprietor?
Yes
Enumeration Date
02-09-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like Thomas Mack 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 Endodontics

Taxonomy Code
1223E0200X
Type
Dental Providers
License No.
22246
License State
CA
Taxonomy Description
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.

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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 1750422853, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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
7
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 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 5 → 10 → 1 4 → 8 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 0 + 0 + 8 + 2 + 4 + 8 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1750422853.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750422853, enumerated as an "individual" on February 09, 2007.

The provider is located at 63 BAY TREE LN LOS ALTOS, CA 94022 and the phone number is (650) 941-6909.

Dentist with taxonomy code 1223E0200X and a focus in Endodontics.