CONSTANTINE JOHN GEAN M.D.
NPI 1730365057
Emergency Medicine in Torrance, CA

NPI Status: Active since January 16, 2008

Contact Information

2382 CRENSHAW BLVD
STE 5
TORRANCE, CA
ZIP 90501
Phone: (310) 618-9200

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  • Individual
  • Male
  • Emergency Medicine

About CONSTANTINE GEAN

This page provides the complete NPI Profile along with additional information for Constantine Gean, a provider established in Torrance, California with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1730365057 assigned on January 2008. The practitioner's primary taxonomy code is 207P00000X with license number A41401 (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1730365057
Provider Name
CONSTANTINE JOHN GEAN M.D.
Gender
Male
Entity Type
Individual
Location Address
2382 CRENSHAW BLVD STE 5 TORRANCE, CA 90501
Location Phone
(310) 618-9200
Mailing Address
2382 CRENSHAW BLVD STE 5 TORRANCE, CA 90501
Mailing Phone
(310) 618-9200
Is Sole Proprietor?
No
Enumeration Date
01-16-2008
Last Update Date
01-16-2008
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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.
A41401
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 1730365057, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 6 + 0 + 6 + 6 + 1 + 0 + 0 + 1 + 0 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1730365057.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Emergency Medicine
2382 CRENSHAW BLVD, STE 5
TORRANCE, CA 90501
Family Medicine (Sports Medicine)
2382 CRENSHAW BLVD, SUITE 5
TORRANCE, CA 90501
Internal Medicine (Addiction Medicine)
2382 CRENSHAW BLVD, SUITE 5
TORRANCE, CA 90501

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1730365057, enumerated as an "individual" on January 16, 2008.

The provider is located at 2382 CRENSHAW BLVD STE 5 TORRANCE, CA 90501 and the phone number is (310) 618-9200.

Emergency Medicine with taxonomy code 207P00000X.