DR. JEFFREY DAVID DRAYER PH.D.
NPI 1790004240
Clinical Neuropsychologist in Wellesley, MA

NPI Status: Active since May 24, 2010

Contact Information

555 WASHINGTON ST
SUITE #5
WELLESLEY, MA
ZIP 02482
Phone: (781) 237-1735
Fax: (781) 237-1768

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  • Individual
  • Male
  • Clinical Neuropsychologist

About JEFFREY DRAYER

This page provides the complete NPI Profile along with additional information for Jeffrey Drayer, a provider established in Wellesley, Massachusetts with a medical specialization in Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1790004240 assigned on May 2010. The practitioner's primary taxonomy code is 103G00000X with license number 9184 (MA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1790004240
Provider Name
DR. JEFFREY DAVID DRAYER PH.D.
Gender
Male
Entity Type
Individual
Location Address
555 WASHINGTON ST SUITE #5 WELLESLEY, MA 02482
Location Phone
(781) 237-1735
Location Fax
(781) 237-1768
Mailing Address
555 WASHINGTON ST SUITE #5 WELLESLEY, MA 02482
Mailing Phone
(781) 237-1735
Mailing Fax
(781) 237-1768
Is Sole Proprietor?
Yes
Enumeration Date
05-24-2010
Last Update Date
05-24-2010
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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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
License No.
9184
License State
MA
Taxonomy Description
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

9184 (MA)

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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 1790004240, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 0 + 0 + 8 + 2 + 8 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1790004240.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Social Worker (Clinical)
555 WASHINGTON ST
WELLESLEY, MA 02482

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790004240, enumerated as an "individual" on May 24, 2010.

The provider is located at 555 WASHINGTON ST SUITE #5 WELLESLEY, MA 02482 and the phone number is (781) 237-1735.

Clinical Neuropsychologist with taxonomy code 103G00000X.