Dr. Sandar Chen, MD
- Part D claims, 2024
- 3,486
- Industry payments
- $536
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Sandar Chen is an internist in Los Angeles, California
Dr. Chen practices in Los Angeles, California.
Dr. Chen's NPI, 1255747069, was assigned on July 1, 2014. Dr. Chen holds California license A145303.
- NPI
- 1255747069NPI Registry (opens in a new tab)
- NPI enumeration date
- July 1, 2014
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Sandar Chen's practice address is in Los Angeles, California
Dr. Chen's practice address in the NPI Registry is 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033, in Los Angeles County.
- NPI Registry address1720 E Cesar E Chavez Ave, Los Angeles, CA 90033 · Los Angeles County
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Sandar 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 |
|---|---|
| Dr. Chen's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sandar 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. Sandar Chen's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 74, 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 74
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Sandar Chen wrote 3,486 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 3,486 Medicare Part D claims for 99 patients. 76% of them were for generic drugs. CMS names the drug for 2,858 of them, across 80 drugs with 11 or more claims each, at $100,219 in total drug cost. In 2023, CMS named 2,762 claims across 75 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic2,647 claims76%
- Brand-name795 claims23%
- Other44 claims1%
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
- Opioids1%32 of 3,486 claims
- Antibiotics3%99 of 3,486 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: 2,7622024: 2,8583%
Drugs named by CMS: 80 in 2024, 75 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. Sandar Chen received $536 in industry payments from 2017 to 2025
CMS Open Payments shows 29 general payments to Dr. Chen from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $482.
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
Sources for Dr. Sandar 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 |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Sandar 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. Sandar Chen's NPI number?
Dr. Sandar Chen's NPI number is 1255747069. It was assigned on July 1, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Sandar Chen?
Dr. Sandar 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. Sandar Chen practice?
Dr. Chen practices at 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033.
What is Dr. Sandar Chen's medical license number?
Dr. Chen holds California license A145303.
What drugs does Dr. Sandar Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Gabapentin and Losartan Potassium.
Has Dr. Sandar Chen received payments from drug or device companies?
CMS Open Payments shows $536 in general payments to Dr. Chen from 3 companies from 2017 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Sandar Chen been practicing?
Dr. Chen's NPI was assigned in 2014.
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