Clark Johnston Williams
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 3020 Childrens Way, San Diego, CA 92123
- Practice phone
- Call (858) 576-1700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Clark Williams' 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.
Clark Johnston Williams is a behavior analyst in San Diego, California
Clark Williams practices at Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health.
Clark Williams' NPI, 1487230942, was assigned on March 23, 2021.
- NPI
- 1487230942NPI Registry (opens in a new tab)
- NPI enumeration date
- March 23, 2021
- NPI status
- Active
- Practice phone
- (858) 576-1700
- 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
Clark Johnston Williams practices at Rady Children's Hospital San Diego in San Diego, California
Clark Williams' primary practice is Rady Children's Hospital San Diego, at 3020 Childrens Way, San Diego, CA 92123 in San Diego County. The practice phone is (858) 576-1700.
- Rady Children's Hospital San Diego3020 Childrens Way, San Diego, CA 92123 · San Diego CountyPhone(858) 576-1700
Source: Dmand AI Affiliation Data
Clark Johnston Williams is affiliated with 2 sites of care
Clark Williams' primary practice is Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health. Dmand AI also links Clark Williams to 1 therapy and rehab clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Clark Johnston Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Clark Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rady Children's Hospital San Diego | Available with a free account |
| +1 more affiliated site | 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 Rady Children's Health and 6.2K+ hospitals, with verified contacts in the same login.
Clark Johnston Williams is one of 928 behavior analysts in California
Behavior analyst is Clark Williams' primary specialty in the NPI Registry, under taxonomy code 103K00000X. Clark Williams has a license on file in California.
Specialties and state licenses
- Behavior analyst, California
Behavior analysts near Clark Williams
Counts of behavior analysts 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
Clark Johnston Williams' patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Clark Williams' median patient age at 15, with 0% women.
Clark Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women0%
- Men83%
Source: Dmand AI Patient Panel Data
Sources for Clark Johnston Williams'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 Clark Johnston Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Clark Johnston Williams' NPI number?
Clark Johnston Williams' NPI number is 1487230942. It was assigned on March 23, 2021, and it is active in the NPI Registry.
What does Clark Johnston Williams specialize in?
Clark Johnston Williams is a behavior analyst in San Diego, California. The primary specialty in the NPI Registry is Behavior Analyst (taxonomy code 103K00000X).
Where does Clark Johnston Williams practice?
Clark Williams practices at 3020 Childrens Way, San Diego, CA 92123. Clark Williams' primary practice is Rady Children's Hospital San Diego in San Diego, California, part of Rady Children's Health. Dmand AI also links Clark Williams to 1 therapy and rehab clinic, and a free account names each one.
What is Clark Johnston Williams' office phone number?
The practice phone on file for Clark Williams is (858) 576-1700. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Clark Johnston Williams' email address?
Dmand AI checks professional and personal email addresses for Clark Williams through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
Which hospitals is Clark Johnston Williams affiliated with?
Clark Williams practices at Rady Children's Hospital San Diego in San Diego, California.
How long has Clark Johnston Williams been practicing?
Clark Williams' NPI was assigned in 2021.
What EHR does Clark Johnston Williams' practice use?
Dmand AI tracks the EHR system at Rady Children's Hospital San Diego and at 1 more affiliated site. The vendor and product are available with a free Dmand AI account.
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