Dr. Simon Chen, MD
- Medicare services, 2024
- 51
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 507
- Industry payments
- $360
- Affiliated sites
- 1
- Practice address
- 251 Llewellyn Avenue, Campbell, CA 95008
- Practice phone
- Call (408) 379-3790
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pacific Clinics - Campbell
Psychiatric Inpatient Facility · Campbell, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Simon Chen is a psychiatrist in Campbell, California
Dr. Chen practices at Pacific Clinics - Campbell in Campbell, California.
Dr. Chen's NPI, 1093169500, was assigned on April 20, 2016. Dr. Chen graduated from Other in 1989. Dr. Chen holds California license A157162.
- NPI
- 1093169500NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547590465
- NPI enumeration date
- April 20, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (408) 379-3790
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Simon Chen practices at Pacific Clinics - Campbell in Campbell, California
Dr. Chen's primary practice is Pacific Clinics - Campbell, at 251 Llewellyn Avenue, Campbell, CA 95008. The practice phone is (408) 379-3790.
- Pacific Clinics - Campbell251 Llewellyn Avenue, Campbell, CA 95008Phone(408) 379-3790
Source: Dmand AI Affiliation Data
Dr. Simon Chen is affiliated with 1 site of care and 1 medical group
Dr. Chen's primary practice is Pacific Clinics - Campbell in Campbell, California. The medical group on file is Pacific Clinics. Dr. Chen's employer is on file too: a behavioral health center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Simon 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 |
|---|---|
| Pacific Clinics - Campbell | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Simon 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 pathology - anatomic/pathology - clinical by the American Board of Pathology. Dr. Chen is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
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. Simon Chen billed Medicare for 51 services in 2024
CMS data shows 51 Medicare services from Dr. Chen across 1 procedure code in 2024, all of them office visits, for 15 Medicare patients. Medicare paid $3,229 for them. Every service was in an office.
Dr. Chen compared with the California median for psychiatrists, 2024
- Dr. Chen
- California median
- Medicare services
- 51vs 11957% below
- Medicare patients
- 15vs 4163% below
- Part D claims
- 428vs 1443.0 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Simon Chen treated 15 Medicare patients in 2024, average age 47
CMS counts 15 Medicare patients who saw Dr. Chen in 2024. 75% of them have mood disorders. Their average risk score is 2.20, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 44, with 53% women.
Chronic conditions among Dr. Chen's Medicare patients, 2024
- Mood disorders75%
Share of Medicare patients with each condition. A patient can have several.
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 44
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Simon Chen wrote 507 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 507 Medicare Part D claims for 23 patients. 96% of them were for generic drugs. CMS names the drug for 428 of them, across 14 drugs with 11 or more claims each, at $5,046 in total drug cost. In 2023, CMS named 413 claims across 19 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic488 claims96%
- Brand-name19 claims4%
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 over7%35 of 507 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: 4132024: 4284%
Drugs named by CMS: 14 in 2024, 19 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
Dr. Simon 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. Simon Chen received $360 in industry payments from 2023 to 2025
CMS Open Payments shows 8 general payments to Dr. Chen from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $342.
General payments to Dr. Chen by program year, 2023 to 2025
Companies that paid Dr. Chen the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Simon Chen graduated from Other
Dr. Chen graduated from Other in 1989.
- Medical school
- Board certified in pathology - anatomic/pathology - clinical
- Board certified in pathology - molecular genetic
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Simon Chen accepts plans from 1 insurance carrier
Dr. Chen is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Simon 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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. Simon 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. Simon Chen's NPI number?
Dr. Simon Chen's NPI number is 1093169500. It was assigned on April 20, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Simon Chen?
Dr. Simon Chen is a psychiatrist in Campbell, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Simon Chen practice?
Dr. Chen practices at 251 Llewellyn Avenue, Campbell, CA 95008. Dr. Chen's primary practice is Pacific Clinics - Campbell in Campbell, California.
What is Dr. Simon Chen's office phone number?
The practice phone on file for Dr. Chen is (408) 379-3790.
What is Dr. Simon Chen's medical license number?
Dr. Chen holds California license A157162.
What medical group is Dr. Simon Chen part of?
Dr. Chen is linked to Pacific Clinics.
Does Dr. Simon Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 51 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. Simon Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
How many Medicare patients does Dr. Simon Chen see?
CMS counts 15 Medicare patients who saw Dr. Chen in 2024, with an average age of 47.
Is Dr. Simon Chen board certified?
Yes. Dr. Chen is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology.
Show 6 more questionsShow fewer questions
What services does Dr. Simon Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Simon Chen go to medical school?
Dr. Chen graduated from Other in 1989.
What drugs does Dr. Simon Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Sertraline HCl, Bupropion XL and Escitalopram Oxalate.
Has Dr. Simon Chen received payments from drug or device companies?
CMS Open Payments shows $360 in general payments to Dr. Chen from 2 companies from 2023 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Simon Chen been practicing?
Dr. Chen graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Simon Chen accept?
Dr. Chen is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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