JOHN PATRICK MCNAMARA M.D.
NPI 1972550473
Surgery - Vascular Surgery in Torrance, CA

NPI Status: Active since May 28, 2006

Contact Information

23451 MADISON ST
SUITE #340
TORRANCE, CA
ZIP 90505
Phone: (310) 373-6864
Fax: (310) 791-8325

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  • Individual
  • Male
  • Surgery
  • Vascular Surgery

About JOHN MCNAMARA

This page provides the complete NPI Profile along with additional information for John Mcnamara, a provider established in Torrance, California with a medical specialization in Surgery, focusing in vascular surgery . The healthcare provider is registered in the NPI registry with number 1972550473 assigned on May 2006. The practitioner's primary taxonomy code is 2086S0129X with license number C38323 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1972550473
Provider Name
JOHN PATRICK MCNAMARA M.D.
Gender
Male
Entity Type
Individual
Location Address
23451 MADISON ST SUITE #340 TORRANCE, CA 90505
Location Phone
(310) 373-6864
Location Fax
(310) 791-8325
Mailing Address
23451 MADISON ST SUITE #340 TORRANCE, CA 90505
Mailing Phone
(310) 373-6864
Mailing Fax
(310) 791-8325
Is Sole Proprietor?
Yes
Enumeration Date
05-28-2006
Last Update Date
07-08-2007
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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

Surgery Vascular Surgery

Taxonomy Code
2086S0129X
Type
Allopathic & Osteopathic Physicians
License No.
C38323
License State
CA
Taxonomy Description
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
A88005MEDICARE UPIN (02)CA 
WC38323AMEDICARE ID-TYPE UNSPECIFIED (04)CA 

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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 1972550473, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 7 → 14 → 5 5 → 10 → 1 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 1 + 0 + 5 + 0 + 4 + 1 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1972550473.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Podiatrist (Foot & Ankle Surgery)
23451 MADISON ST, STE 230
TORRANCE, CA 90505
Dentist (General Practice)
23451 MADISON ST, STE 260
TORRANCE, CA 90505
Dentist (Pediatric Dentistry)
23451 MADISON ST, #170
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST, SUITE 290
TORRANCE, CA 90505
Physician Assistant (Surgical)
23451 MADISON ST, SUITE 300
TORRANCE, CA 90505
Family Medicine
23451 MADISON ST, 140
TORRANCE, CA 90505
Surgery
23451 MADISON ST, SUITE #340
TORRANCE, CA 90505
Family Medicine
23451 MADISON ST, STE 250
TORRANCE, CA 90505
Specialist
23451 MADISON ST, SUITE 340
TORRANCE, CA 90505
Specialist
23451 MADISON ST, SUITE 340
TORRANCE, CA 90505
Psychiatry & Neurology (Neurology)
23451 MADISON ST, 205
TORRANCE, CA 90505
Thoracic Surgery (Cardiothoracic Vascular Surgery)
23451 MADISON ST, SUITE 300
TORRANCE, CA 90505
Nurse Practitioner
23451 MADISON ST, #340
TORRANCE, CA 90505
Pharmacist
23451 MADISON ST, SUITE 100
TORRANCE, CA 90505
Dentist
23451 MADISON ST, #350
TORRANCE, CA 90505
Clinic/Center (Podiatric)
23451 MADISON ST, SUITE 230
TORRANCE, CA 90505
Dentist (General Practice)
23451 MADISON ST, SUITE #180
TORRANCE, CA 90505
Thoracic Surgery (Cardiothoracic Vascular Surgery)
23451 MADISON ST, SUITE 300
TORRANCE, CA 90505
Physician Assistant
23451 MADISON ST, SUITE 290
TORRANCE, CA 90505
Family Medicine
23451 MADISON ST, SUITE 250
TORRANCE, CA 90505

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972550473, enumerated as an "individual" on May 28, 2006.

The provider is located at 23451 MADISON ST SUITE #340 TORRANCE, CA 90505 and the phone number is (310) 373-6864.

Surgery with taxonomy code 2086S0129X and a focus in Vascular Surgery.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.