Dr. Lian Phay P. Chien, MD
- Medicare services, 2023
- 86
- Part D claims, 2024
- 453
- Industry payments
- $6,140
- Medical groups
- 2
- State license
- 1
- Practice address
- 695 S Vermont Ave, Los Angeles, CA 90005
- Practice phone
- Call (626) 430-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sa3-Fsp Program
Los Angeles, California
Find Dr. Chien'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. Lian Phay P. Chien is a psychiatrist in Los Angeles, California
Dr. Chien practices at Sa3-Fsp Program in Los Angeles, California.
Dr. Chien's NPI, 1124105721, was assigned on November 1, 2006. Dr. Chien graduated from St. George's University School of Medicine in 1999. Dr. Chien holds California license A90164.
- NPI
- 1124105721NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587794540
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (626) 430-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lian Phay P. Chien practices at Sa3-Fsp Program in Los Angeles, California
Dr. Chien's primary practice is Sa3-Fsp Program, at 695 S Vermont Ave, Los Angeles, CA 90005 in Los Angeles County. The practice phone is (626) 430-2800.
- Sa3-Fsp Program695 S Vermont Ave, Los Angeles, CA 90005 · Los Angeles CountyPhone(626) 430-2800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lian Phay P. Chien is affiliated with 1 site of care and 2 medical groups
Dr. Chien's primary practice is Sa3-Fsp Program in Los Angeles, California. The medical group on file is GENESIS Older Adult Program (Los Angeles County Department of Mental Health). Dmand AI also links Dr. Chien to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lian Phay P. Chien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sa3-Fsp Program | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lian Phay P. Chien is one of 6,803 psychiatrists in California
Psychiatry is Dr. Chien's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Chien is board certified in addiction medicine by the American Board of Preventive Medicine. Dr. Chien is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists anxiety, bipolar disorder, depression and schizophrenia among the conditions Dr. Chien treats.
Psychiatrists near Dr. Chien
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. Lian Phay P. Chien billed Medicare for 86 services in 2023
CMS data shows 86 Medicare services from Dr. Chien across 2 procedure codes in 2023. Medicare paid $5,875 for them. Every service was in an office.
Dr. Chien's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1312023: 8634%
Dr. Chien compared with the California median for psychiatrists, 2023
- Dr. Chien
- California median
- Medicare services
- 86vs 11928% below
- Part D claims
- 329vs 1442.3 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Chien'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lian Phay P. Chien's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Chien's median patient age at 50, with 50% women.
Dr. Chien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Lian Phay P. Chien wrote 453 Medicare Part D claims in 2024
In 2024, Dr. Chien wrote 453 Medicare Part D claims for 43 patients. 87% of them were for generic drugs. CMS names the drug for 329 of them, across 14 drugs with 11 or more claims each, at $91,344 in total drug cost. In 2023, CMS named 1,219 claims across 33 drugs.
Dr. Chien's Part D claims by kind of drug, 2024
- Generic392 claims87%
- Brand-name61 claims13%
Dr. Chien'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. Chien's Part D claims, 2024
- Antipsychotics, patients 65 and over6%26 of 453 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: 1,2192024: 32973%
Drugs named by CMS: 14 in 2024, 33 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. Lian Phay P. Chien offers telehealth to Medicare patients
Dr. Chien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chien as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Lian Phay P. Chien received $6,140 in industry payments from 2016 to 2025
CMS Open Payments shows 177 general payments to Dr. Chien from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $1,589.
General payments to Dr. Chien by program year, 2016 to 2025
General payments to Dr. Chien by kind, 2016 to 2025
- Food and beverage$6,119100%
- Gifts$130%
- Education$80%
Companies that paid Dr. Chien the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lian Phay P. Chien graduated from St. George's University School of Medicine
Dr. Chien graduated from St. George's University School of Medicine in 1999.
- Medical school
- Board certified in addiction medicine
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Lian Phay P. Chien'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 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 |
| 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. Lian Phay P. Chien
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. Lian Phay P. Chien's NPI number?
Dr. Lian Phay P. Chien's NPI number is 1124105721. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lian Phay P. Chien?
Dr. Lian Phay P. Chien is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Lian Phay P. Chien practice?
Dr. Chien practices at 695 S Vermont Ave, Los Angeles, CA 90005. Dr. Chien's primary practice is Sa3-Fsp Program in Los Angeles, California. Dmand AI also links Dr. Chien to 1 medical group.
What is Dr. Lian Phay P. Chien's office phone number?
The practice phone on file for Dr. Chien is (626) 430-2800.
What is Dr. Lian Phay P. Chien's medical license number?
Dr. Chien holds California license A90164.
What medical group is Dr. Lian Phay P. Chien part of?
Dr. Chien is linked to GENESIS Older Adult Program (Los Angeles County Department of Mental Health). Dmand AI links Dr. Chien to 1 more medical group.
Does Dr. Lian Phay P. Chien accept Medicare?
Yes. CMS data shows Dr. Chien billed Medicare for 86 services in 2023, and Dr. Chien accepts Medicare assignment.
Does Dr. Lian Phay P. Chien offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chien as offering telehealth services.
Is Dr. Lian Phay P. Chien board certified?
Yes. Dr. Chien is board certified in addiction medicine by the American Board of Preventive Medicine.
What services does Dr. Lian Phay P. Chien bill to Medicare?
In 2023, Dr. Chien's most billed Medicare services were care management and other visits (99442) and care management and other visits (99443).
Show 4 more questionsShow fewer questions
Where did Dr. Lian Phay P. Chien go to medical school?
Dr. Chien graduated from St. George's University School of Medicine in 1999.
What drugs does Dr. Lian Phay P. Chien prescribe most?
In 2024 Medicare Part D data, Dr. Chien's most prescribed drugs by claims were Olanzapine, Divalproex Sodium and Caplyta.
Has Dr. Lian Phay P. Chien received payments from drug or device companies?
CMS Open Payments shows $6,140 in general payments to Dr. Chien from 11 companies from 2016 to 2025. The largest total came from Alkermes, Inc.
How long has Dr. Lian Phay P. Chien been practicing?
Dr. Chien graduated from medical school in 1999, 27 years ago.
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