DR. FREDERICK ABRUZZO M.D.
NPI 1801000815
Surgery - Surgery of the Hand in San Francisco, CA

NPI Status: Active since May 09, 2007

Contact Information

1447A STEVENSON ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 517-4200

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  • Individual
  • Male
  • Surgery
  • Surgery of the Hand

About FREDERICK ABRUZZO

This page provides the complete NPI Profile along with additional information for Frederick Abruzzo, a provider established in San Francisco, California with a medical specialization in Surgery, focusing in surgery of the hand . The healthcare provider is registered in the NPI registry with number 1801000815 assigned on May 2007. The practitioner's primary taxonomy code is 2086S0105X with license number A79948 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1801000815
Provider Name
DR. FREDERICK ABRUZZO M.D.
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
1447A STEVENSON ST SAN FRANCISCO, CA 94103
Location Phone
(415) 517-4200
Mailing Address
1447A STEVENSON ST SAN FRANCISCO, CA 94103
Mailing Phone
(415) 517-4200
Is Sole Proprietor?
No
Enumeration Date
05-09-2007
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 Surgery of the Hand

Taxonomy Code
2086S0105X
Type
Allopathic & Osteopathic Physicians
License No.
A79948
License State
CA
Taxonomy Description
A surgeon with expertise in the investigation, preservation and restoration by medical, surgical and rehabilitative means, of all structures of the upper extremity directly affecting the form and function of the hand and wrist.

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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 1801000815, 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
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 0 → 0 0 → 0 0 → 0 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 0 + 0 + 0 + 8 + 2 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1801000815.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801000815, enumerated as an "individual" on May 09, 2007.

The provider is located at 1447A STEVENSON ST SAN FRANCISCO, CA 94103 and the phone number is (415) 517-4200.

Surgery with taxonomy code 2086S0105X and a focus in Surgery of the Hand.