Dr. William Duan, MD
- Part D claims, 2024
- 49
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 1800 N California St, Stockton, CA 95204
- Practice phone
- Call (209) 547-5716
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Duan'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.
Dr. William Duan is a psychiatrist in Stockton, California
Dr. Duan practices with County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic, a medical group.
Dr. Duan's NPI, 1881334308, was assigned on March 31, 2022. Dr. Duan holds California license A189333.
- NPI
- 1881334308NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042782989
- NPI enumeration date
- March 31, 2022
- NPI status
- Active
- Practice phone
- (209) 547-5716
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William Duan's practice address is in Stockton, California
Dr. Duan's practice address in the NPI Registry is 1800 N California St, Stockton, CA 95204. The practice phone is (209) 547-5716.
- NPI Registry address1800 N California St, Stockton, CA 95204Phone(209) 547-5716
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Duan is affiliated with 1 medical group
Dr. Duan is part of County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic, a medical group in San Jose, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Duan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic | 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 County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Duan is one of 6,803 psychiatrists in California
Psychiatry is Dr. Duan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Duan is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Duan
Counts of psychiatrists 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
Dr. William Duan wrote 49 Medicare Part D claims in 2024
In 2024, Dr. Duan wrote 49 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. William Duan'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Dr. William Duan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Duan's NPI number?
Dr. William Duan's NPI number is 1881334308. It was assigned on March 31, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. William Duan?
Dr. William Duan is a psychiatrist in Stockton, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William Duan practice?
Dr. Duan practices at 1800 N California St, Stockton, CA 95204. Dr. Duan's primary practice is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic, a medical group.
What is Dr. William Duan's office phone number?
The practice phone on file for Dr. Duan is (209) 547-5716.
What is Dr. William Duan's medical license number?
Dr. Duan holds California license A189333.
What medical group is Dr. William Duan part of?
Dr. Duan is part of County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic in San Jose, California.
How long has Dr. William Duan been practicing?
Dr. Duan's NPI was assigned in 2022.
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