ERIC ZACHARY SILFEN M.D
NPI 1487926754
Emergency Medicine in Andover, MA

NPI Status: Active since February 02, 2012

Contact Information

3000 MINUTEMAN RD
MAILSTOP 101
ANDOVER, MA
ZIP 01810
Phone: (978) 659-7610

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  • Individual
  • Male
  • Emergency Medicine

About ERIC SILFEN

This page provides the complete NPI Profile along with additional information for Eric Silfen, a provider established in Andover, Massachusetts with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1487926754 assigned on February 2012. The practitioner's primary taxonomy code is 207P00000X with license number 230134 (NY). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1487926754
Provider Name
ERIC ZACHARY SILFEN M.D
Gender
Male
Entity Type
Individual
Location Address
3000 MINUTEMAN RD MAILSTOP 101 ANDOVER, MA 01810
Location Phone
(978) 659-7610
Mailing Address
PO BOX 3711 NANTUCKET, MA 02584
Is Sole Proprietor?
Yes
Enumeration Date
02-02-2012
Last Update Date
02-02-2012
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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.
230134
License State
NY
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 1487926754, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
4
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
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 9 → 18 → 9 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 6 + 7 + 1 + 8 + 2 + 1 + 2 + 7 + 1 + 0 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1487926754.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1487926754, enumerated as an "individual" on February 02, 2012.

The provider is located at 3000 MINUTEMAN RD MAILSTOP 101 ANDOVER, MA 01810 and the phone number is (978) 659-7610.

Emergency Medicine with taxonomy code 207P00000X.