DR. WILLIAM JOHN WARNKEN PSY.D
NPI 1588700975
Psychologist - Forensic in Worcester, MA

NPI Status: Active since January 30, 2007

Contact Information

305 BELMONT STREET
FORENSIC SERVICE
WORCESTER, MA
ZIP 01604
Phone: (508) 368-3439
Fax: (508) 363-1506

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  • Individual
  • Male
  • Psychologist
  • Forensic

About WILLIAM WARNKEN

This page provides the complete NPI Profile along with additional information for William Warnken, a provider established in Worcester, Massachusetts with a medical specialization in Psychologist, focusing in forensic . The healthcare provider is registered in the NPI registry with number 1588700975 assigned on January 2007. The practitioner's primary taxonomy code is 103TF0200X with license number 6662 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1588700975
Provider Name
DR. WILLIAM JOHN WARNKEN PSY.D
Gender
Male
Entity Type
Individual
Location Address
305 BELMONT STREET FORENSIC SERVICE WORCESTER, MA 01604
Location Phone
(508) 368-3439
Location Fax
(508) 363-1506
Mailing Address
WORCESTER STATE HOSPITAL, 305 BELMONT STREET FORENSIC SERVICE WORCESTER, MA 01604
Mailing Phone
(508) 368-3439
Mailing Fax
(508) 363-1506
Is Sole Proprietor?
No
Enumeration Date
01-30-2007
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

Psychologist Forensic

Taxonomy Code
103TF0200X
Type
Behavioral Health & Social Service Providers
License No.
6662
License State
MA
Taxonomy Description
A psychologist whose specialty is characterized by activities primarily intended to provide professional psychological expertise within the judicial and legal systems.

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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 1588700975, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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
5
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
9
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 8 → 16 → 7 7 → 14 → 5 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 6 + 8 + 1 + 4 + 0 + 0 + 9 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1588700975.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Psychiatry)
305 BELMONT STREET, WSH
WORCESTER, MA 01604
Psychiatry & Neurology (Psychiatry)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Psychiatry & Neurology (Child & Adolescent Psychiatry)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Psychologist
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Psychiatry & Neurology (Psychiatry)
305 BELMONT STREET, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1588700975, enumerated as an "individual" on January 30, 2007.

The provider is located at 305 BELMONT STREET FORENSIC SERVICE WORCESTER, MA 01604 and the phone number is (508) 368-3439.

Psychologist with taxonomy code 103TF0200X and a focus in Forensic.