Dr. Clark Chen, DO
- Medicare services, 2018
- 144
- Part D claims, 2024
- 160
- Hospital affiliations
- 1
- Industry payments
- $240
- Medical group
- 1
- Practice address
- 43112 15th W St, Lancaster, CA 93534
- Practice phone
- Call (661) 726-2279
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Lancaster, California
Find Dr. 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.
Dr. Clark Chen is a child and adolescent psychiatrist in Lancaster, California
Dr. Chen practices at Southern California Permanente Medical Group in Lancaster, California.
Dr. Chen's NPI, 1457733719, was assigned on June 23, 2015. Dr. Chen holds California license 19576.
- NPI
- 1457733719NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002187879
- NPI enumeration date
- June 23, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (661) 726-2279
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clark Chen practices at Southern California Permanente Medical Group in Lancaster, California
Dr. Chen's primary practice is Southern California Permanente Medical Group, at 43112 15th W St, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 726-2279.
- Southern California Permanente Medical Group43112 15th W St, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 726-2279
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Clark Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is Southern California Permanente Medical Group in Lancaster, California. Dr. Chen is also affiliated with Panorama City Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clark Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clark Chen is one of 769 childs and adolescent psychiatrists in California
Child and adolescent psychiatry is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 2084P0804X. Dmand AI has Dr. Chen's licenses on file in 3 states: California, Florida and Michigan.
Specialties and state licenses
- Child and adolescent psychiatry, CaliforniaPrimary
- Psychiatry, Florida
- Michigan license
Childs and adolescent psychiatrists near Dr. Chen
Counts of childs and adolescent 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. Clark Chen billed Medicare for 144 services in 2018
CMS data shows 144 Medicare services from Dr. Chen across 3 procedure codes in 2018. Medicare paid $5,763 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen compared with the California median for childs and adolescent psychiatrists, 2018
- Dr. Chen
- California median
- Medicare services
- 144vs 8471% above
- Part D claims
- 45vs 6126% below
Medians across 667 childs and adolescent psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2018
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 Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other childs and adolescent psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clark Chen's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 11, with 30% women.
Dr. 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 11
Patient panel by sex, all payers
- Women30%
- Men70%
Source: Dmand AI Patient Panel Data
Dr. Clark Chen wrote 160 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 160 Medicare Part D claims for 19 patients. 97% of them were for generic drugs. CMS names the drug for 45 of them, across 3 drugs with 11 or more claims each, at $2,207 in total drug cost. In 2018, CMS named 144 claims across 8 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic155 claims97%
- Brand-name and other5 claims3%
Dr. 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.
Part D claims for drugs CMS names, 2018 to 2024
- 2018
- 2024
- Claims for drugs CMS names
- 2018: 1442024: 4569%
Drugs named by CMS: 3 in 2024, 8 in 2018.
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
Dr. Clark Chen offers telehealth to Medicare patients
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Clark Chen received $240 in industry payments from 2017 to 2018
CMS Open Payments shows 13 general payments to Dr. Chen from 6 drug and device companies from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $103.
General payments to Dr. Chen by program year, 2017 to 2018
Companies that paid Dr. Chen the most, 2017 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Clark 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Industry payments | Open Payments (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. Clark 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 Dr. Clark Chen's NPI number?
Dr. Clark Chen's NPI number is 1457733719. It was assigned on June 23, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Clark Chen?
Dr. Clark Chen is a child and adolescent psychiatrist in Lancaster, California. The primary specialty in the NPI Registry is Child & Adolescent Psychiatry Physician (taxonomy code 2084P0804X).
Where does Dr. Clark Chen practice?
Dr. Chen practices at 43112 15th W St, Lancaster, CA 93534. Dr. Chen's primary practice is Southern California Permanente Medical Group in Lancaster, California.
What is Dr. Clark Chen's office phone number?
The practice phone on file for Dr. Chen is (661) 726-2279.
What is Dr. Clark Chen's medical license number?
Dr. Chen holds California license 19576, one of the licenses on file in 3 states.
Which states has Dr. Clark Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in California, Florida and Michigan.
Which hospitals is Dr. Clark Chen affiliated with?
Dr. Chen is affiliated with Panorama City Medical Center.
What medical group is Dr. Clark Chen part of?
Dr. Chen is linked to Southern California Permanente Medical Group.
Does Dr. Clark Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 144 services in 2018, and Dr. Chen accepts Medicare assignment.
Does Dr. Clark Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
Show 4 more questionsShow fewer questions
What services does Dr. Clark Chen bill to Medicare?
In 2018, Dr. Chen's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99222).
What drugs does Dr. Clark Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Clonazepam, Divalproex Sodium and Trazodone HCl.
Has Dr. Clark Chen received payments from drug or device companies?
CMS Open Payments shows $240 in general payments to Dr. Chen from 6 companies from 2017 to 2018. The largest total came from Alkermes, Inc.
How long has Dr. Clark Chen been practicing?
Dr. Chen graduated from medical school in 2021, 5 years ago.
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