DAVID ALAN GREENBERG M.D.
NPI 1336481225
Psychiatry & Neurology - Neurology in Sonoma, CA

NPI Status: Active since March 19, 2013

Contact Information

456 MOLL CT
SONOMA, CA
ZIP 95476
Phone: (707) 933-9179

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology

About DAVID GREENBERG

This page provides the complete NPI Profile along with additional information for David Greenberg, a provider established in Sonoma, California with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1336481225 assigned on March 2013. The practitioner's primary taxonomy code is 2084N0400X with license number G42010 (CA). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1336481225
Provider Name
DAVID ALAN GREENBERG M.D.
Gender
Male
Entity Type
Individual
Location Address
456 MOLL CT SONOMA, CA 95476
Location Phone
(707) 933-9179
Mailing Address
456 MOLL CT SONOMA, CA 95476
Mailing Phone
(707) 933-9179
Is Sole Proprietor?
Yes
Enumeration Date
03-19-2013
Last Update Date
03-19-2013
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
G42010
License State
CA
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

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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 1336481225, 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
2
Doubled → 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 3 → 6 4 → 8 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 8 + 8 + 2 + 2 + 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 1336481225.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336481225, enumerated as an "individual" on March 19, 2013.

The provider is located at 456 MOLL CT SONOMA, CA 95476 and the phone number is (707) 933-9179.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.