Nona E. Williams, PsyD
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 555 Marin Street Suite 270, Thousand Oaks, CA 91360
- Practice phone
- Call (805) 719-0244
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advanced Digestive Center of Southern California
Surgery Center - Not Medicare-Certified · Thousand Oaks, California
Find Nona 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.
Nona E. Williams is a clinical psychologist in Thousand Oaks, California
Nona Williams practices at Advanced Digestive Center of Southern California in Thousand Oaks, California.
Nona Williams' NPI, 1427094135, was assigned on June 21, 2006. Nona Williams holds California license PSY20867.
- NPI
- 1427094135NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113922733
- NPI enumeration date
- June 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 719-0244
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nona E. Williams practices at Advanced Digestive Center of Southern California in Thousand Oaks, California
Nona Williams' primary practice is Advanced Digestive Center of Southern California, at 555 Marin Street Suite 270, Thousand Oaks, CA 91360. The practice phone is (805) 719-0244.
- Advanced Digestive Center of Southern California555 Marin Street Suite 270, Thousand Oaks, CA 91360Phone(805) 719-0244
Source: Dmand AI Affiliation Data
Nona E. Williams is affiliated with 1 site of care
Nona Williams' primary practice is Advanced Digestive Center of Southern California in Thousand Oaks, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nona E. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nona Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advanced Digestive Center of Southern California | Available with a free account |
Source: Dmand AI Technology Install Data
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Nona E. Williams is one of 3,615 clinical psychologists in California
Clinical is Nona Williams' primary specialty in the NPI Registry, under taxonomy code 103TC0700X. Nona Williams is licensed in California.
Specialties and state licenses
- Clinical psychologist, CaliforniaPrimary
Clinical psychologists near Nona Williams
Counts of clinical psychologists 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
Nona E. Williams' patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Nona Williams' median patient age at 57, with 100% women.
Nona Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
How Nona E. Williams takes part in Medicare
Nona Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Nona E. 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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Nona E. Williams
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What is Nona E. Williams' NPI number?
Nona E. Williams' NPI number is 1427094135. It was assigned on June 21, 2006, and it is active in the NPI Registry.
What does Nona E. Williams specialize in?
Nona E. Williams is a clinical psychologist in Thousand Oaks, California. The primary specialty in the NPI Registry is Clinical Psychologist (taxonomy code 103TC0700X).
Where does Nona E. Williams practice?
Nona Williams practices at 555 Marin Street Suite 270, Thousand Oaks, CA 91360. Nona Williams' primary practice is Advanced Digestive Center of Southern California in Thousand Oaks, California.
What is Nona E. Williams' office phone number?
The practice phone on file for Nona Williams is (805) 719-0244.
What is Nona E. Williams' medical license number?
Nona Williams holds California license PSY20867.
Does Nona E. Williams accept Medicare?
Yes. CMS lists Nona Williams as accepting Medicare assignment.
How long has Nona E. Williams been practicing?
Nona Williams graduated from medical school in 2005, 21 years ago.
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