DR. JOHN HILL MATTOCKS DDS
NPI 1861607335
Dentist - Endodontics in Silver Spring, MD

NPI Status: Active since May 10, 2007

Contact Information

8830 CAMERON CT
SUITE 408
SILVER SPRING, MD
ZIP 20910
Phone: (301) 587-2333

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  • Individual
  • Male
  • Dentist
  • Endodontics

About JOHN MATTOCKS

This page provides the complete NPI Profile along with additional information for John Mattocks, a provider established in Silver Spring, Maryland with a medical specialization in Dentist, focusing in endodontics . The healthcare provider is registered in the NPI registry with number 1861607335 assigned on May 2007. The practitioner's primary taxonomy code is 1223E0200X with license number MD 5261 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1861607335
Provider Name
DR. JOHN HILL MATTOCKS DDS
Gender
Male
Entity Type
Individual
Location Address
8830 CAMERON CT SUITE 408 SILVER SPRING, MD 20910
Location Phone
(301) 587-2333
Mailing Address
8830 CAMERON CT SUITE 408 SILVER SPRING, MD 20910
Mailing Phone
(301) 587-2333
Is Sole Proprietor?
No
Enumeration Date
05-10-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like John Mattocks 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.
MD 5261
License State
MD
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 1861607335, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
3
Unchanged
Pos 9
3
Doubled → 6
Check
5
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 6 → 12 → 3 6 → 12 → 3 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 2 + 0 + 1 + 4 + 3 + 6 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1861607335.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Specialist
8830 CAMERON CT, SUITE 333
SILVER SPRING, MD 20910
Ophthalmology
8830 CAMERON CT, 105
SILVER SPRING, MD 20910
Social Worker (Clinical)
8830 CAMERON CT, SUITE 101
SILVER SPRING, MD 20910
Pediatrics
8830 CAMERON CT, SUITE 402
SILVER SPRING, MD 20910
Psychiatry & Neurology (Neurology)
8830 CAMERON CT, #207
SILVER SPRING, MD 20910
Psychologist (Cognitive & Behavioral)
8830 CAMERON CT, SUITE 503
SILVER SPRING, MD 20910
Chiropractor
8830 CAMERON CT, SUITE 602
SILVER SPRING, MD 20910
Psychologist (Counseling)
8830 CAMERON CT, SUITE 403
SILVER SPRING, MD 20910
Counselor (Professional)
8830 CAMERON CT, SUITE 206
SILVER SPRING, MD 20910
Psychologist (Counseling)
8830 CAMERON CT, SUITE 403
SILVER SPRING, MD 20910
Clinic/Center (Mental Health (Including Community Mental Health Center))
8830 CAMERON CT
SILVER SPRING, MD 20910
Social Worker (Clinical)
8830 CAMERON CT, SUITE 101
SILVER SPRING, MD 20910
Dentist
8830 CAMERON CT, SUITE 504
SILVER SPRING, MD 20910
Dentist
8830 CAMERON CT, SUITE 504
SILVER SPRING, MD 20910
Acupuncturist
8830 CAMERON CT, SUITE 602
SILVER SPRING, MD 20910
Social Worker (Clinical)
8830 CAMERON CT, SUITE 503
SILVER SPRING, MD 20910
Registered Nurse
8830 CAMERON CT, SUITE 501
SILVER SPRING, MD 20910

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861607335, enumerated as an "individual" on May 10, 2007.

The provider is located at 8830 CAMERON CT SUITE 408 SILVER SPRING, MD 20910 and the phone number is (301) 587-2333.

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