MARSHALL ROBERT BERENS MD
NPI 1659922920
Emergency Medicine in Topanga, CA

NPI Status: Active since September 26, 2019

Contact Information

20958 HILLSIDE DR
TOPANGA, CA
ZIP 90290
Phone: (818) 292-0413

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  • Individual
  • Male
  • Emergency Medicine

About MARSHALL BERENS

This page provides the complete NPI Profile along with additional information for Marshall Berens, a provider established in Topanga, California with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1659922920 assigned on September 2019. The practitioner's primary taxonomy code is 207P00000X with license number G20759 (CA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1659922920
Provider Name
MARSHALL ROBERT BERENS MD
Gender
Male
Entity Type
Individual
Location Address
20958 HILLSIDE DR TOPANGA, CA 90290
Location Phone
(818) 292-0413
Mailing Address
20958 HILLSIDE DR TOPANGA, CA 90290
Mailing Phone
(818) 292-0413
Is Sole Proprietor?
Yes
Enumeration Date
09-26-2019
Last Update Date
09-26-2019
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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

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
G20759
License State
CA
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

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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 1659922920, 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
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 5 → 10 → 1 9 → 18 → 9 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 8 + 2 + 4 + 9 + 4 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1659922920.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659922920, enumerated as an "individual" on September 26, 2019.

The provider is located at 20958 HILLSIDE DR TOPANGA, CA 90290 and the phone number is (818) 292-0413.

Emergency Medicine with taxonomy code 207P00000X.