HENRY WARD TRUEBLOOD MD
NPI 1043302540
Surgery - Trauma Surgery in San Jose, CA

NPI Status: Active since September 29, 2006

Contact Information

751S BASCOM AVE
GENERAL SURGERY DEPT
SAN JOSE, CA
ZIP 95128
Phone: (408) 885-5000

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  • Individual
  • Male
  • Surgery
  • Trauma Surgery

About HENRY TRUEBLOOD

This page provides the complete NPI Profile along with additional information for Henry Trueblood, a provider established in San Jose, California with a medical specialization in Surgery, focusing in trauma surgery . The healthcare provider is registered in the NPI registry with number 1043302540 assigned on September 2006. The practitioner's primary taxonomy code is 2086S0127X with license number G44655 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1043302540
Provider Name
HENRY WARD TRUEBLOOD MD
Gender
Male
Entity Type
Individual
Location Address
751S BASCOM AVE GENERAL SURGERY DEPT SAN JOSE, CA 95128
Location Phone
(408) 885-5000
Mailing Address
424 SANDHILL CIRCLE MENLO PARK, CA 94025
Mailing Phone
(408) 885-5000
Is Sole Proprietor?
No
Enumeration Date
09-29-2006
Last Update Date
09-11-2025
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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 Trauma Surgery

Taxonomy Code
2086S0127X
Type
Allopathic & Osteopathic Physicians
License No.
G44655
License State
CA
Taxonomy Description
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208600000XAllopathic & Osteopathic Physicians

Surgery

G44655 (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 1043302540, 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 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
0
Unchanged
Pos 3
4
Doubled → 8
Pos 4
3
Unchanged
Pos 5
3
Doubled → 6
Pos 6
0
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
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 4 → 8 3 → 6 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 8 + 3 + 6 + 0 + 4 + 5 + 8 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1043302540.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1043302540, enumerated as an "individual" on September 29, 2006.

The provider is located at 751S BASCOM AVE GENERAL SURGERY DEPT SAN JOSE, CA 95128 and the phone number is (408) 885-5000.

Surgery with taxonomy code 2086S0127X and a focus in Trauma Surgery.