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Dr. Andy Chen, MD
NPI1831153659
- Part D claims, 2024
- 309
- Publications
- 1
- Industry payments
- $410
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 711 N La Jolla Ave, Los Angeles, CA 90046
- Practice phone
- Call (310) 876-1670
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Health Within Inc
Los Angeles, 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. Andy Chen is an internist in Los Angeles, California
Dr. Chen practices at Health Within Inc in Los Angeles, California.
Dr. Chen's NPI, 1831153659, was assigned on April 17, 2006. Dr. Chen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1996. Dr. Chen holds California license A64741.
NPI and contact details
- NPI
- 1831153659NPI Registry (opens in a new tab)
- NPI enumeration date
- April 17, 2006
- NPI status
- Active
- Practice phone
- (310) 876-1670
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Andy Chen practices at Health Within Inc in Los Angeles, California
Dr. Chen's primary practice is Health Within Inc, at 711 N La Jolla Ave, Los Angeles, CA 90046 in Los Angeles County. The practice phone is (310) 876-1670.
- Health Within Inc711 N La Jolla Ave, Los Angeles, CA 90046 · Los Angeles CountyPhone(310) 876-1670
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andy Chen is affiliated with 1 site of care and 1 medical group
Dr. Chen's primary practice is Health Within Inc in Los Angeles, California. The medical group on file is Optum - Downtown Los Angeles.
Health Within IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andy 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 |
|---|---|
| Health Within Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andy Chen is one of 16,751 internists in California
Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Chen
Counts of internists 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. Andy Chen's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 70, with 43% 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 70
Patient panel by sex, all payers
- Women43%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Andy Chen wrote 309 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 309 Medicare Part D claims for 35 patients. 80% of them were for generic drugs. CMS names the drug for 92 of them, across 7 drugs with 11 or more claims each, at $4,654 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Part D claims, 2024309
Drugs named by CMS7
Total drug cost$4,654
Part D patients35
Dr. Chen's Part D claims by kind of drug, 2024
- Generic248 claims80%
- Brand-name and other61 claims20%
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
- Antibiotics6%19 of 309 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: 112024: 92736%
Drugs named by CMS: 7 in 2024, 1 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
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Dr. Andy Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen in 2012.
Papers1
Recent publications by Dr. Chen
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Andy Chen received $410 in industry payments from 2016 to 2020
CMS Open Payments shows 18 general payments to Dr. Chen from 10 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $125.
General payments to Dr. Chen by program year, 2016 to 2020
Companies that paid Dr. Chen the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andy Chen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Chen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Andy Chen accepts plans from 1 insurance carrier
Dr. Chen is in network with 1 carrier, including Molina. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Molina
Source: Dmand AI Insurance Network Data
Sources for Dr. Andy 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 Data |
| 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) |
| 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. Andy 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. Andy Chen's NPI number?
Dr. Andy Chen's NPI number is 1831153659. It was assigned on April 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Andy Chen?
Dr. Andy Chen is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Andy Chen practice?
Dr. Chen practices at 711 N La Jolla Ave, Los Angeles, CA 90046. Dr. Chen's primary practice is Health Within Inc in Los Angeles, California.
What is Dr. Andy Chen's office phone number?
The practice phone on file for Dr. Chen is (310) 876-1670.
What is Dr. Andy Chen's medical license number?
Dr. Chen holds California license A64741.
What medical group is Dr. Andy Chen part of?
Dr. Chen is linked to Optum - Downtown Los Angeles.
Where did Dr. Andy Chen go to medical school?
Dr. Chen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1996.
What drugs does Dr. Andy Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Albuterol Sulfate Hfa and Gabapentin.
Has Dr. Andy Chen received payments from drug or device companies?
CMS Open Payments shows $410 in general payments to Dr. Chen from 10 companies from 2016 to 2020. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Andy Chen been practicing?
Dr. Chen graduated from medical school in 1996, 30 years ago.
Does Dr. Andy Chen do research?
Dmand AI links 1 publication to Dr. Chen.
What insurance does Dr. Andy Chen accept?
Dr. Chen is in network with 1 carrier, including Molina. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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