Proc Natl Acad Sci U S A
AntibodiesImmunoglobulin GMicrospheres
Dr. David Wei-Chan Chien, MD
NPI1346303674
- Publications
- 24
- Industry payments
- $822
- Medical group
- 1
- Insurance carriers
- 9
- State license
- 1
- Practice address
- 19950 W Rinaldi St, Porter Ranch, CA 91326
- Practice phone
- Call (661) 222-2600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Facey Medical Group
Porter Ranch, 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. David Wei-Chan Chien is a pediatrician in Porter Ranch, California
Dr. Chien practices at Facey Medical Group in Porter Ranch, California.
Dr. Chien's NPI, 1346303674, was assigned on December 18, 2006. Dr. Chien graduated from Boston University School Of Medicine in 2001. Dr. Chien holds California license A83875.
NPI and contact details
- NPI
- 1346303674NPI Registry (opens in a new tab)
- NPI enumeration date
- December 18, 2006
- NPI status
- Active
- Practice phone
- (661) 222-2600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. David Wei-Chan Chien practices at Facey Medical Group in Porter Ranch, California
Dr. Chien's primary practice is Facey Medical Group, at 19950 W Rinaldi St, Porter Ranch, CA 91326 in Los Angeles County. The practice phone is (661) 222-2600.
- Facey Medical Group19950 W Rinaldi St, Porter Ranch, CA 91326 · Los Angeles CountyPhone(661) 222-2600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Wei-Chan Chien is affiliated with 1 site of care and 1 medical group
Dr. Chien's primary practice is Facey Medical Group in Porter Ranch, California. The medical group on file is Facey Medical Group.
Facey Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Wei-Chan 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 |
|---|---|
| Facey Medical Group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Wei-Chan Chien is one of 8,236 pediatricians in California
Pediatrics is Dr. Chien's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Chien is board certified in pediatrics by the American Board of Pediatrics. Dr. Chien is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Chien
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
8,236pediatricians in California
3pediatricians in Porter Ranch
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David Wei-Chan Chien's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Chien's median patient age at 10, with 35% 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 10
Patient panel by sex, all payers
- Women35%
- Men64%
Source: Dmand AI Patient Panel Data
Dr. David Wei-Chan Chien has 24 publications on record
Dmand AI links 24 papers to Dr. Chien in 2007. The most frequent topics are Hepatitis C, Hepacivirus and Hepatitis C Antibodies. Dr. Chien has published most often in Proc Natl Acad Sci U S A. Dr. Chien's most frequent co-authors are Stewart Lyndon Cooper, MD and Myron John Tong, MD.
Papers24
Topics Dr. Chien writes about most
- Hepatitis C
- Hepacivirus
- Hepatitis C Antibodies
- Recombinant Proteins
- Immunoenzyme Techniques
- Molecular Sequence Data
- Viral Core Proteins
- Blood Donors
Dr. Chien's most frequent co-authors
Recent publications by Dr. Chien
Antibodies, MonoclonalAntibody SpecificityEnzyme-Linked Immunosorbent Assay
Carrier ProteinsEnzyme-Linked Immunosorbent AssayGenotype
Base SequenceHepacivirusHepatitis Antibodies
Cell CompartmentationCloning, MolecularFluorescent Antibody Technique
See who Dr. Chien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chien works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Wei-Chan Chien received $822 in industry payments from 2016 to 2025
CMS Open Payments shows 21 general payments to Dr. Chien from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 53% of the total. Bristol-Myers Squibb Company paid the most, $508.
General payments to Dr. Chien by program year, 2016 to 2025
General payments to Dr. Chien by kind, 2016 to 2025
$822in total
- Travel and lodging$43953%
- Food and beverage$38347%
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. David Wei-Chan Chien graduated from Boston University School Of Medicine
Dr. Chien graduated from Boston University School Of Medicine in 2001.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. David Wei-Chan Chien accepts plans from 9 insurance carriers
Dr. Chien is in network with 9 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- Cigna
- HCSC
- +1 more carriersWith a free account
Plan types Dr. Chien accepts, by number of carriers
- PPO6
- POS5
- HMO4
- Medicare4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. David Wei-Chan 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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Dr. David Wei-Chan 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. David Wei-Chan Chien's NPI number?
Dr. David Wei-Chan Chien's NPI number is 1346303674. It was assigned on December 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Wei-Chan Chien?
Dr. David Wei-Chan Chien is a pediatrician in Porter Ranch, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. David Wei-Chan Chien practice?
Dr. Chien practices at 19950 W Rinaldi St, Porter Ranch, CA 91326. Dr. Chien's primary practice is Facey Medical Group in Porter Ranch, California.
What is Dr. David Wei-Chan Chien's office phone number?
The practice phone on file for Dr. Chien is (661) 222-2600.
What is Dr. David Wei-Chan Chien's medical license number?
Dr. Chien holds California license A83875.
What medical group is Dr. David Wei-Chan Chien part of?
Dr. Chien is linked to Facey Medical Group.
Is Dr. David Wei-Chan Chien board certified?
Yes. Dr. Chien is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. David Wei-Chan Chien go to medical school?
Dr. Chien graduated from Boston University School Of Medicine in 2001.
Has Dr. David Wei-Chan Chien received payments from drug or device companies?
CMS Open Payments shows $822 in general payments to Dr. Chien from 6 companies from 2016 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. David Wei-Chan Chien been practicing?
Dr. Chien graduated from medical school in 2001, 25 years ago.
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Does Dr. David Wei-Chan Chien do research?
Dmand AI links 24 publications to Dr. Chien.
Who does Dr. David Wei-Chan Chien publish with?
Dr. Chien's most frequent co-authors are Stewart Lyndon Cooper, MD (2 shared papers) and Myron John Tong, MD (1 shared paper).
What insurance does Dr. David Wei-Chan Chien accept?
Dr. Chien is in network with 9 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
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