DR. JOSEPH J WILLIAMS DDS
NPI 1649284126
Dentist - Endodontics in Brookline, MA

NPI Status: Active since July 28, 2006

Contact Information

1 BROOKLINE PL
SUITE 505
BROOKLINE, MA
ZIP 02445
Phone: (617) 735-8500

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  • Individual
  • Male
  • Dentist
  • Endodontics

About JOSEPH WILLIAMS

This page provides the complete NPI Profile along with additional information for Joseph Williams, a provider established in Brookline, Massachusetts with a medical specialization in Dentist, focusing in endodontics . The healthcare provider is registered in the NPI registry with number 1649284126 assigned on July 2006. The practitioner's primary taxonomy code is 1223E0200X with license number MA2425 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1649284126
Provider Name
DR. JOSEPH J WILLIAMS DDS
Gender
Male
Entity Type
Individual
Location Address
1 BROOKLINE PL SUITE 505 BROOKLINE, MA 02445
Location Phone
(617) 735-8500
Mailing Address
138 SOUTH ST MEDFIELD, MA 02052
Mailing Phone
(508) 359-2222
Is Sole Proprietor?
No
Enumeration Date
07-28-2006
Last Update Date
07-08-2007
Code Navigator

A dentist like Joseph Williams 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.
MA2425
License State
MA
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 1649284126, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 4 + 8 + 8 + 1 + 4 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1649284126.

Other Providers at the Same Location


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

Dermatology
1 BROOKLINE PL, SUITE 406
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE 521
BROOKLINE, MA 02445
Pediatrics
1 BROOKLINE PL, STE 327
BROOKLINE, MA 02445
Neurological Surgery
1 BROOKLINE PL, SUITE 227
BROOKLINE, MA 02445
Psychiatry & Neurology (Neurology)
1 BROOKLINE PL, BR 2 SUITE 225
BROOKLINE, MA 02445
Psychiatry & Neurology (Neurology)
1 BROOKLINE PL, SUITE 227, PARTNERS MS CENTER
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE 423
BROOKLINE, MA 02445
Psychiatry & Neurology (Neurology)
1 BROOKLINE PL, SUITE 225
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE 305
BROOKLINE, MA 02445
Nurse Practitioner (Obstetrics & Gynecology)
1 BROOKLINE PL, SUITE 522
BROOKLINE, MA 02445
Otolaryngology
1 BROOKLINE PL, SUITE 401
BROOKLINE, MA 02445
Social Worker (Clinical)
1 BROOKLINE PL, SUITE 426
BROOKLINE, MA 02445
Internal Medicine (Cardiovascular Disease)
1 BROOKLINE PL, SUITE 305
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE 601
BROOKLINE, MA 02445
Dentist (Endodontics)
1 BROOKLINE PL, SUITE 505
BROOKLINE, MA 02445
Specialist
1 BROOKLINE PL, SUITE 305
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE 506
BROOKLINE, MA 02445
Obstetrics & Gynecology
1 BROOKLINE PL, SUITE #243
BROOKLINE, MA 02445
Plastic Surgery
1 BROOKLINE PL
BROOKLINE, MA 02445
Psychiatry & Neurology (Neurology)
1 BROOKLINE PL, HMFP COMPREHENSIVE HEADACHE CENTER, SUITE 121
BROOKLINE, MA 02445

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649284126, enumerated as an "individual" on July 28, 2006.

The provider is located at 1 BROOKLINE PL SUITE 505 BROOKLINE, MA 02445 and the phone number is (617) 735-8500.

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