JOHN CHARLES WILLIAMSON (M.D.) – Urology Physician, NPI 1073566709

JOHN CHARLES WILLIAMSON (M.D.) is a healthcare provider. based in Austin, Texas. specializing in Urology Physician. They hold the professional credentials M.D.. They hold a License No. E6690 (TX). The NPI Number for JOHN CHARLES WILLIAMSON (M.D.) is 1073566709

Main info

Male
50 Years Of Experience
Accepts Medicare Assignment
Name
JOHN CHARLES WILLIAMSON (M.D.)
NPI
1073566709
Phone
(512) 687-1950
Address
1020 W 34TH ST
Enumeration Date
17 May 2006
Last Update Date
31 July 2013

Doctor Profile

Medical School Name
UNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Secondary Phone
5126871950
Graduation Year
1976 (50 years ago)
PAC ID
0749246114
Group Practice PAC ID
7810087905
Professional Enrollment ID
I20080228000506
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for JOHN CHARLES WILLIAMSON (M.D.)

  • 1020, West 34th Street, Bryker Woods, Austin, Travis County, Texas, 78703, United States

    AUSTIN, TX 787052009

    Phone: (512) 687-1950

    Fax: (512) 687-1490

    Type: Mailing

  • 4007, James Casey Street, Austin, Travis County, Texas, 78745, United States

    C150

    AUSTIN, TX 787453369

    Phone: (512) 443-5988

    Fax: (512) 443-5055

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 5 Open Payments records for all available years, with a total value of $108.

Total Amount is formed as General ($108) + Research ($0) + Ownership ($0) = $108.

Last reported payment date: 2024-02-27 • Largest payer in this snapshot: Relievant Medsystems, Inc. ($43).

Total Amount

$108

General + Research + Ownership

Payments

5

Total payment records

General Amount

$108

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-02-27

Latest reported date

Top Companies

Largest payers in this snapshot

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 78705)

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Provider's Procedures

JOHN CHARLES WILLIAMSON (M.D.) performs procedures in Urology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
UROLOGYTX51798Ultrasound measurement of bladder capacity after voiding305218
UROLOGYTX76872Ultrasound of rectum1616

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 7810087905View full group profile

Reviews

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Frequently asked questions

How is JOHN CHARLES WILLIAMSON (M.D.) identified in CMS data?
CMS-hosted NPPES data lists JOHN CHARLES WILLIAMSON (M.D.) with NPI 1073566709.
Is JOHN CHARLES WILLIAMSON (M.D.) listed as active for patients and plans?
The listing shows JOHN CHARLES WILLIAMSON (M.D.) as active in the NPI system.
What is JOHN CHARLES WILLIAMSON (M.D.) best known for clinically?
Directory data describes JOHN CHARLES WILLIAMSON (M.D.) with Urology Physician. Clinical services aligned with this taxonomy classification.
Where should I expect JOHN CHARLES WILLIAMSON (M.D.) on a map?
Expect Austin, Texas as a primary anchor for JOHN CHARLES WILLIAMSON (M.D.) unless the record lists multiple sites.
Is the information about JOHN CHARLES WILLIAMSON (M.D.) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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