JOHN BRADLEY HACKERT MD
NPI 1134103856
Surgery in Rancho Cordova, CA

NPI Status: Active since December 06, 2005

Contact Information

4413 SOPHISTRY DR
RANCHO CORDOVA, CA
ZIP 95742
Phone: (916) 202-4297

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NPPES record last updated: January 18, 2011. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Male
  • Surgery

About JOHN HACKERT

This page provides the complete NPI Profile along with additional information for John Hackert, a provider established in Rancho Cordova, California with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1134103856 assigned on December 2005. The practitioner's primary taxonomy code is 208600000X with license number A82374 (CA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1134103856
Provider Name
JOHN BRADLEY HACKERT MD
Gender
Male
Entity Type
Individual
Location Address
4413 SOPHISTRY DR RANCHO CORDOVA, CA 95742
Location Phone
(916) 202-4297
Mailing Address
4413 SOPHISTRY DR RANCHO CORDOVA, CA 95742
Mailing Phone
(916) 202-4297
Is Sole Proprietor?
No
Enumeration Date
12-06-2005
Last Update Date
01-18-2011
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A surgeon like John Hackert treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

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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

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
A82374
License State
CA
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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
I07788MEDICARE UPIN (02) 

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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 1134103856, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 2 + 0 + 6 + 8 + 1 + 0 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1134103856.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134103856, enumerated as an "individual" on December 06, 2005.

The provider is located at 4413 SOPHISTRY DR RANCHO CORDOVA, CA 95742 and the phone number is (916) 202-4297.

Surgery with taxonomy code 208600000X.

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