John A. Williamson, CFA
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 12141 Richmond Ave, Houston, TX 77082
- Practice phone
- Call (281) 588-8080
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find John Williamson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
John A. Williamson is a surgical assistant in Houston, Texas
John Williamson practices at HCA Houston Healthcare West in Houston, Texas, part of HCA Healthcare.
John Williamson's NPI, 1740465608, was assigned on January 9, 2008. John Williamson holds Texas license 106253.
- NPI
- 1740465608NPI Registry (opens in a new tab)
- NPI enumeration date
- January 9, 2008
- NPI status
- Active
- Practice phone
- (281) 588-8080
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
John A. Williamson practices at HCA Houston Healthcare West in Houston, Texas
John Williamson's primary practice is HCA Houston Healthcare West, at 12141 Richmond Ave, Houston, TX 77082 in Harris County. The practice phone is (281) 588-8080.
- HCA Houston Healthcare West12141 Richmond Ave, Houston, TX 77082 · Harris CountyPhone(281) 588-8080
Source: Dmand AI Affiliation Data
John A. Williamson is affiliated with 1 site of care
John Williamson's primary practice is HCA Houston Healthcare West in Houston, Texas, part of HCA Healthcare.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John A. Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Williamson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Houston Healthcare West | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across HCA Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
John A. Williamson is one of 301 surgical assistants in Texas
Surgical assistant is John Williamson's primary specialty in the NPI Registry, under taxonomy code 246ZC0007X. John Williamson is licensed in Texas.
Specialties and state licenses
- Surgical assistant, TexasPrimary
Surgical assistants near John Williamson
Counts of surgical assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
John A. Williamson's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts John Williamson's median patient age at 45, with 91% women.
John Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women91%
- Men9%
Source: Dmand AI Patient Panel Data
Sources for John A. Williamson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about John A. Williamson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John A. Williamson's NPI number?
John A. Williamson's NPI number is 1740465608. It was assigned on January 9, 2008, and it is active in the NPI Registry.
What does John A. Williamson specialize in?
John A. Williamson is a surgical assistant in Houston, Texas. The primary specialty in the NPI Registry is Surgical Assistant (taxonomy code 246ZC0007X).
Where does John A. Williamson practice?
John Williamson practices at 12141 Richmond Ave, Houston, TX 77082. John Williamson's primary practice is HCA Houston Healthcare West in Houston, Texas, part of HCA Healthcare.
What is John A. Williamson's office phone number?
The practice phone on file for John Williamson is (281) 588-8080.
What is John A. Williamson's medical license number?
John Williamson holds Texas license 106253.
Which hospitals is John A. Williamson affiliated with?
John Williamson practices at HCA Houston Healthcare West in Houston, Texas.
How long has John A. Williamson been practicing?
John Williamson's NPI was assigned in 2008.
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