JOHN CHARLES WILLIAMSON M.D.
NPI 1073566709
Urology in Austin, TX

NPI Status: Active since May 17, 2006

Contact Information

4007 JAMES CASEY ST
C150
AUSTIN, TX
ZIP 78745
Phone: (512) 443-5988
Fax: (512) 443-5055

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  • Individual
  • Male
  • Urology
  • Accepts Insurance

About JOHN WILLIAMSON

This page provides the complete NPI Profile along with additional information for John Williamson, a provider established in Austin, Texas with a medical specialization in Urology. The healthcare provider is registered in the NPI registry with number 1073566709 assigned on May 2006. The practitioner's primary taxonomy code is 208800000X with license number E6690 (TX). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1073566709
Provider Name
JOHN CHARLES WILLIAMSON M.D.
Gender
Male
Entity Type
Individual
Location Address
4007 JAMES CASEY ST C150 AUSTIN, TX 78745
Location Phone
(512) 443-5988
Location Fax
(512) 443-5055
Mailing Address
1020 W 34TH ST AUSTIN, TX 78705
Mailing Phone
(512) 687-1950
Mailing Fax
(512) 443-5055
Is Sole Proprietor?
No
Enumeration Date
05-17-2006
Last Update Date
07-31-2013
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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

Urology

Taxonomy Code
208800000X
Type
Allopathic & Osteopathic Physicians
License No.
E6690
License State
TX
Taxonomy Description
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Insurance Plans Accepted

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

  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • Blue Advantage Plus Gold? 803 - POS
  • Blue Advantage Plus Gold? Standard - POS
  • Blue Advantage Plus Silver? 202 - POS
  • Blue Advantage Plus Silver? 605 - POS
  • Blue Advantage Plus Silver? Standard - POS
  • Blue Advantage Security HMO? 200 - HMO
  • Blue Advantage Silver HMO? 205 - HMO
  • Blue Advantage Silver HMO? 801 - HMO
  • Blue Advantage Silver HMO? Standard - HMO

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
114581504MEDICAID (05)TX 
8F6342MEDICARE PIN (08) 

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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 1073566709, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
0
Doubled → 0
Check
9
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 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 4 + 3 + 1 + 0 + 6 + 1 + 2 + 7 + 0 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1073566709.

Other Providers at the Same Location


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

Surgery
4007 JAMES CASEY ST, SUITE A210
AUSTIN, TX 78745
Specialist
4007 JAMES CASEY ST, SUITE B220
AUSTIN, TX 78745
Pediatrics
4007 JAMES CASEY ST, SUITE D140
AUSTIN, TX 78745
Pediatrics
4007 JAMES CASEY ST, SUITE A150
AUSTIN, TX 78745
Dermatology
4007 JAMES CASEY ST, SUITE B210
AUSTIN, TX 78745
Specialist
4007 JAMES CASEY ST, C150
AUSTIN, TX 78745
Psychiatry & Neurology (Neurology)
4007 JAMES CASEY ST, SUITE C-110
AUSTIN, TX 78745
Specialist
4007 JAMES CASEY ST, SUITE D240
AUSTIN, TX 78745
Dermatology
4007 JAMES CASEY ST, SUITE B210
AUSTIN, TX 78745
Psychiatry & Neurology (Neurology)
4007 JAMES CASEY ST, SUITE C110
AUSTIN, TX 78745
Internal Medicine (Gastroenterology)
4007 JAMES CASEY ST, SUITE C 210
AUSTIN, TX 78745
Family Medicine
4007 JAMES CASEY ST, SUITE A-200
AUSTIN, TX 78745
Pediatrics
4007 JAMES CASEY ST, SUITE D200
AUSTIN, TX 78745
Clinical Nurse Specialist (Adult Health)
4007 JAMES CASEY ST, B-200
AUSTIN, TX 78745
Clinical Nurse Specialist (Women's Health)
4007 JAMES CASEY ST, SUITE A240
AUSTIN, TX 78745
Obstetrics & Gynecology
4007 JAMES CASEY ST, SUITE A-100
AUSTIN, TX 78745
Obstetrics & Gynecology
4007 JAMES CASEY ST, STE A 250
AUSTIN, TX 78745
Pediatrics
4007 JAMES CASEY ST, SUITE A150
AUSTIN, TX 78745
Obstetrics & Gynecology
4007 JAMES CASEY ST, SUITE A-250
AUSTIN, TX 78745
Surgery
4007 JAMES CASEY ST, STE A230
AUSTIN, TX 78745

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073566709, enumerated as an "individual" on May 17, 2006.

The provider is located at 4007 JAMES CASEY ST C150 AUSTIN, TX 78745 and the phone number is (512) 443-5988.

Urology with taxonomy code 208800000X.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, Medicare and. Please consult your insurance carrier or call the provider to verify.