DAVID L. DYKHUIZEN M.D.
NPI 1619959202
Specialist in Worcester, MA

NPI Status: Active since November 18, 2005

Contact Information

116 BELMONT ST
WORCESTER, MA
ZIP 01605
Phone: (508) 752-7470
Fax: (508) 798-0471

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  • Individual
  • Male
  • Specialist

About DAVID DYKHUIZEN

This page provides the complete NPI Profile along with additional information for David Dykhuizen, a provider established in Worcester, Massachusetts with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1619959202 assigned on November 2005. The practitioner's primary taxonomy code is 174400000X with license number 55195 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1619959202
Provider Name
DAVID L. DYKHUIZEN M.D.
Gender
Male
Entity Type
Individual
Location Address
116 BELMONT ST WORCESTER, MA 01605
Location Phone
(508) 752-7470
Location Fax
(508) 798-0471
Mailing Address
116 BELMONT ST WORCESTER, MA 01605
Mailing Phone
(508) 752-7470
Mailing Fax
(508) 798-0471
Is Sole Proprietor?
Yes
Enumeration Date
11-18-2005
Last Update Date
07-08-2007
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
55195
License State
MA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1619959202, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 8 + 5 + 1 + 8 + 2 + 0 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1619959202.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Internal Medicine (Rheumatology)
116 BELMONT ST, RHEUMATOLOGY
WORCESTER, MA 01605
Dentist (General Practice)
116 BELMONT ST, STE. 23
WORCESTER, MA 01605
Obstetrics & Gynecology
116 BELMONT ST
WORCESTER, MA 01605
Surgery (Vascular Surgery)
116 BELMONT ST
WORCESTER, MA 01605
Physician Assistant
116 BELMONT ST, SUITE 11
WORCESTER, MA 01605
Family Medicine
116 BELMONT ST, SUITE 11
WORCESTER, MA 01605
Nurse Practitioner (Family)
116 BELMONT ST, SUITE 12
WORCESTER, MA 01605
Nurse Practitioner
116 BELMONT ST, SUITE 11
WORCESTER, MA 01605
Obstetrics & Gynecology
116 BELMONT ST
WORCESTER, MA 01605
Specialist
116 BELMONT ST
WORCESTER, MA 01605
Internal Medicine
116 BELMONT ST
WORCESTER, MA 01605
Internal Medicine
116 BELMONT ST
WORCESTER, MA 01605
Counselor (Addiction (Substance Use Disorder))
116 BELMONT ST
WORCESTER, MA 01605
Internal Medicine
116 BELMONT ST, UNIT 24
WORCESTER, MA 01605

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619959202, enumerated as an "individual" on November 18, 2005.

The provider is located at 116 BELMONT ST WORCESTER, MA 01605 and the phone number is (508) 752-7470.

Specialist with taxonomy code 174400000X.