Dr. Douglas Norman Chen, MD
- Medicare services, 2023
- 71
- Part D claims, 2024
- 213
- Hospital affiliations
- 2
- Industry payments
- $160
- Medical groups
- 7
- Practice address
- 2767 Olive Highway, Oroville, CA 95966
- Practice phone
- Call (530) 533-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Douglas Norman Chen is a psychiatrist in Oroville, California
Dr. Chen practices at Oroville Hospital in Oroville, California, part of Oro Hospital.
Dr. Chen's NPI, 1336280023, was assigned on February 8, 2007. Dr. Chen graduated from Lewis Katz School of Medicine in 1991. Dr. Chen holds Nevada license 16655.
- NPI
- 1336280023NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416109012
- NPI enumeration date
- February 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 533-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas Norman Chen practices at Oroville Hospital in Oroville, California
Dr. Chen's primary practice is Oroville Hospital, at 2767 Olive Highway, Oroville, CA 95966 in Butte County. The practice phone is (530) 533-8500.
- Oroville Hospital2767 Olive Highway, Oroville, CA 95966 · Butte CountyPhone(530) 533-8500
Source: Dmand AI Affiliation Data
Dr. Douglas Norman Chen is affiliated with 3 sites of care and 7 medical groups
Dr. Chen's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dr. Chen is also affiliated with Barton Memorial Hospital. The medical group on file is North American Mental Health Services. Dmand AI also links Dr. Chen to 6 more medical groups and 1 group practice or 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 Dr. Douglas Norman Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oroville Hospital | Available with a free account |
| +2 more sites and 6 medical groups | 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 Oro Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Douglas Norman Chen is one of 6,803 psychiatrists in California
Psychiatry is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Chen is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Chen's licenses on file in 4 states: Nevada, California, New York and Pennsylvania.
Specialties and state licenses
- Psychiatry, NevadaPrimary
- California license
- New York license
- Pain medicine (psychiatry and neurology), Pennsylvania
Clinical focus
Dmand AI lists adjustment disease, anxiety, depression and insomnia among the conditions Dr. Chen treats.
Psychiatrists near Dr. 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
Dr. Douglas Norman Chen billed Medicare for 71 services in 2023
CMS data shows 71 Medicare services from Dr. Chen across 2 procedure codes in 2023. Medicare paid $5,770 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1642023: 4076%
- Tests and treatments
- 2022: 1662023: 3181%
Dr. Chen compared with the California median for psychiatrists, 2023
- Dr. Chen
- California median
- Medicare services
- 71vs 11940% below
- Part D claims
- 118vs 14418% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2023
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 psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Norman Chen's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 31, with 67% 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 31
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Douglas Norman Chen wrote 213 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 213 Medicare Part D claims for 14 patients. 84% of them were for generic drugs. CMS names the drug for 118 of them, across 7 drugs with 11 or more claims each, at $80,012 in total drug cost. In 2023, CMS named 164 claims across 9 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic179 claims84%
- Brand-name34 claims16%
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.
Drug classes CMS tracks in Dr. Chen's Part D claims, 2024
- Antipsychotics, patients 65 and over12%25 of 213 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: 1642024: 11828%
Drugs named by CMS: 7 in 2024, 9 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
How Dr. Douglas Norman Chen takes part in Medicare
Dr. Chen 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)
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Dr. Douglas Norman Chen received $160 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Chen from 2 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $149.
General payments to Dr. Chen by program year, 2017 to 2025
Companies that paid Dr. Chen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas Norman Chen graduated from Lewis Katz School of Medicine
Dr. Chen graduated from Lewis Katz School of Medicine in 1991.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Douglas Norman Chen accepts plans from 11 insurance carriers
Dr. Chen is in network with 11 carriers, including Aetna, United Healthcare and Cigna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Cigna
- Humana
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- MVP Health Care
- +3 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- Medicare8
- PPO8
- HMO4
- Medicaid3
- EPO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Douglas Norman 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) |
| 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 Dr. Douglas Norman 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. Douglas Norman Chen's NPI number?
Dr. Douglas Norman Chen's NPI number is 1336280023. It was assigned on February 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Norman Chen?
Dr. Douglas Norman Chen is a psychiatrist in Oroville, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Douglas Norman Chen practice?
Dr. Chen practices at 2767 Olive Highway, Oroville, CA 95966. Dr. Chen's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dmand AI also links Dr. Chen to 6 medical groups and 1 group practice or clinic.
What is Dr. Douglas Norman Chen's office phone number?
The practice phone on file for Dr. Chen is (530) 533-8500.
What is Dr. Douglas Norman Chen's medical license number?
Dr. Chen holds Nevada license 16655, one of the licenses on file in 4 states.
Which states has Dr. Douglas Norman Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in Nevada (2016 to 2027), California (2017 to 2027), New York (2021 to 2027) and Pennsylvania (1991 to 2026).
Which hospitals is Dr. Douglas Norman Chen affiliated with?
Dr. Chen practices at Oroville Hospital in Oroville, California. Dr. Chen is also affiliated with Barton Memorial Hospital.
What medical group is Dr. Douglas Norman Chen part of?
Dr. Chen is linked to North American Mental Health Services. Dmand AI links Dr. Chen to 6 more medical groups.
Does Dr. Douglas Norman Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 71 services in 2023, and Dr. Chen accepts Medicare assignment.
Is Dr. Douglas Norman Chen board certified?
Yes. Dr. Chen is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 6 more questionsShow fewer questions
What services does Dr. Douglas Norman Chen bill to Medicare?
In 2023, Dr. Chen's most billed Medicare services were office visit, established patient (99214) and psychiatric service (90833).
Where did Dr. Douglas Norman Chen go to medical school?
Dr. Chen graduated from Lewis Katz School of Medicine in 1991.
What drugs does Dr. Douglas Norman Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Invega Sustenna, Divalproex Sodium and Memantine HCl.
Has Dr. Douglas Norman Chen received payments from drug or device companies?
CMS Open Payments shows $160 in general payments to Dr. Chen from 2 companies from 2017 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Douglas Norman Chen been practicing?
Dr. Chen graduated from medical school in 1991, 35 years ago.
What insurance does Dr. Douglas Norman Chen accept?
Dr. Chen is in network with 11 carriers, including Aetna, United Healthcare and Cigna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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