Alexander Chen
- Medicare services, 2021
- 28
- Part D claims, 2024
- 2,212
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $286
- Practice address
- 300 Hillmont Avenue, Ventura, CA 93003
- Practice phone
- Call (805) 652-6075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Alexander Chen'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.
Alexander Chen is a psychiatrist in Ventura, California
Alexander Chen practices at Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency.
Alexander Chen's NPI, 1194256669, was assigned on March 25, 2017. Alexander Chen graduated from Keck School of Medicine of USC in 2017. Alexander Chen holds California license A160654.
- NPI
- 1194256669NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204246002
- NPI enumeration date
- March 25, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 652-6075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Alexander Chen practices at Ventura County Medical Center in Ventura, California
Alexander Chen's primary practice is Ventura County Medical Center, at 300 Hillmont Avenue, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-6075.
- Ventura County Medical Center300 Hillmont Avenue, Ventura, CA 93003 · Ventura CountyPhone(805) 652-6075
Source: Dmand AI Affiliation Data
Alexander Chen is affiliated with 4 sites of care and 1 medical group
Alexander Chen's primary practice is Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency. Alexander Chen is also affiliated with Keck Hospital of USC. The medical group on file is Ventura County Medical Center. Dmand AI also links Alexander Chen to 1 more community health center and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alexander Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alexander Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ventura County Medical Center | Available with a free account |
| +3 more affiliated sites | 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 Ventura County Health Care Agency and 6.2K+ hospitals, with verified contacts in the same login.
Alexander Chen is one of 6,803 psychiatrists in California
Psychiatry is Alexander Chen's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Alexander Chen is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Alexander Chen
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
Alexander Chen billed Medicare for 28 services in 2021
CMS data shows 28 Medicare services from Alexander Chen across 1 procedure code in 2021. Medicare paid $850 for them. Every service was in a facility, such as a hospital, rather than an office.
Alexander Chen's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 222021: 2827%
Alexander Chen compared with the California median for psychiatrists, 2021
- Alexander Chen
- California median
- Medicare services
- 28vs 11976% below
- Part D claims
- 2,143vs 14414.9 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Alexander Chen's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Alexander Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Alexander Chen and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Alexander Chen's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Alexander Chen's median patient age at 47, with 65% women.
Alexander Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Alexander Chen wrote 2,212 Medicare Part D claims in 2024
In 2024, Alexander Chen wrote 2,212 Medicare Part D claims for 140 patients. 91% of them were for generic drugs. CMS names the drug for 2,143 of them, across 41 drugs with 11 or more claims each, at $508,606 in total drug cost. In 2023, CMS named 1,555 claims across 40 drugs.
Alexander Chen's Part D claims by kind of drug, 2024
- Generic2,021 claims91%
- Brand-name191 claims9%
Alexander Chen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Alexander Chen's Part D claims, 2024
- Antipsychotics, patients 65 and over9%210 of 2,212 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,5552024: 2,14338%
Drugs named by CMS: 41 in 2024, 40 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Alexander Chen offers telehealth to Medicare patients
Alexander Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Alexander Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Alexander Chen has 1 publication on record
Dmand AI links 1 paper to Alexander Chen. Alexander Chen's most frequent co-authors are Joseph Abiodun Ladapo, MD, PhD and John N. Mafi, MD.
Alexander Chen's most frequent co-authors
Recent publications by Alexander Chen
See who Alexander Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alexander Chen works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Alexander Chen received $286 in industry payments from 2022 to 2023
CMS Open Payments shows 3 general payments to Alexander Chen from 3 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Halyard Health, Inc. paid the most, $137.
General payments to Alexander Chen by program year, 2022 to 2023
Companies that paid Alexander Chen the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Alexander Chen graduated from Keck School of Medicine of USC
Alexander Chen graduated from Keck School of Medicine of USC in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Alexander Chen accepts plans from 1 insurance carrier
Alexander Chen is in network with 1 carrier, including Molina. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Molina
Source: Dmand AI Insurance Network Data
Sources for Alexander Chen'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Alexander Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Alexander Chen's NPI number?
Alexander Chen's NPI number is 1194256669. It was assigned on March 25, 2017, and it is active in the NPI Registry.
What does Alexander Chen specialize in?
Alexander Chen is a psychiatrist in Ventura, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Alexander Chen practice?
Alexander Chen practices at 300 Hillmont Avenue, Ventura, CA 93003. Alexander Chen's primary practice is Ventura County Medical Center in Ventura, California, part of Ventura County Health Care Agency. Dmand AI also links Alexander Chen to 1 community health center and 1 therapy and rehab clinic.
What is Alexander Chen's office phone number?
The practice phone on file for Alexander Chen is (805) 652-6075.
What is Alexander Chen's medical license number?
Alexander Chen holds California license A160654.
Which hospitals is Alexander Chen affiliated with?
Alexander Chen practices at Ventura County Medical Center in Ventura, California. Alexander Chen is also affiliated with Keck Hospital of USC.
What medical group is Alexander Chen part of?
Alexander Chen is linked to Ventura County Medical Center.
Does Alexander Chen accept Medicare?
Yes. CMS data shows Alexander Chen billed Medicare for 28 services in 2021, and Alexander Chen accepts Medicare assignment.
Does Alexander Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Alexander Chen as offering telehealth services.
What services does Alexander Chen bill to Medicare?
In 2021, Alexander Chen's most billed Medicare services were hospital inpatient care (99231).
Show 7 more questionsShow fewer questions
Where did Alexander Chen go to medical school?
Alexander Chen graduated from Keck School of Medicine of USC in 2017.
What drugs does Alexander Chen prescribe most?
In 2024 Medicare Part D data, Alexander Chen's most prescribed drugs by claims were Trazodone HCl, Quetiapine Fumarate and Mirtazapine.
Has Alexander Chen received payments from drug or device companies?
CMS Open Payments shows $286 in general payments to Alexander Chen from 3 companies from 2022 to 2023. The largest total came from Halyard Health, Inc.
How long has Alexander Chen been practicing?
Alexander Chen graduated from medical school in 2017, 9 years ago.
Does Alexander Chen do research?
Dmand AI links 1 publication to Alexander Chen.
Who does Alexander Chen publish with?
Alexander Chen's most frequent co-authors are Joseph Abiodun Ladapo, MD, PhD (1 shared paper) and John N. Mafi, MD (1 shared paper).
What insurance does Alexander Chen accept?
Alexander Chen is in network with 1 carrier, including Molina. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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