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Dr. Dennis Hao Chen, MD
NPI1639759970
- Part D claims, 2024
- 201
- Publications
- 1
- Industry payments
- $173
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 8700 Beverly Blvd, West Hollywood, CA 90048
- Practice phone
- Call (323) 866-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cedars-Sinai Medical Center
West Hollywood, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Dennis Hao Chen is an endocrinologist in West Hollywood, California
Dr. Chen practices at Cedars-Sinai Medical Center in West Hollywood, California.
Dr. Chen's NPI, 1639759970, was assigned on April 12, 2021. Dr. Chen graduated from Keck School of Medicine of USC in 2021. Dr. Chen holds California license A193287.
NPI and contact details
- NPI
- 1639759970NPI Registry (opens in a new tab)
- NPI enumeration date
- April 12, 2021
- NPI status
- Active
- Practice phone
- (323) 866-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Dennis Hao Chen practices at Cedars-Sinai Medical Center in West Hollywood, California
Dr. Chen's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, West Hollywood, CA 90048 in Los Angeles County. The practice phone is (323) 866-8600.
- Cedars-Sinai Medical Center8700 Beverly Blvd, West Hollywood, CA 90048 · Los Angeles CountyPhone(323) 866-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Dennis Hao Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. The medical group on file is Cedars-Sinai Medical Center. Dmand AI also links Dr. Chen to 1 more group practice or clinic, named with a free account.
Cedars-Sinai Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dennis Hao 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 |
|---|---|
| Cedars-Sinai Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dennis Hao Chen is one of 1,062 endocrinologists in California
Endocrinology, diabetes and metabolism is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chen is licensed in California.
Specialties and state licenses
- Endocrinology, diabetes and metabolism, CaliforniaPrimary
Endocrinologists near Dr. Chen
Counts of endocrinologists 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. Dennis Hao Chen's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 64, with 72% 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 64
Patient panel by sex, all payers
- Women72%
- Men26%
Source: Dmand AI Patient Panel Data
Dr. Dennis Hao Chen wrote 201 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 201 Medicare Part D claims for 45 patients. 72% of them were for generic drugs. CMS names the drug for 32 of them, across 2 drugs with 11 or more claims each, at $238 in total drug cost. In 2023, CMS named 110 claims across 8 drugs.
Part D claims, 2024201
Drugs named by CMS2
Total drug cost$238
Part D patients45
Dr. Chen's Part D claims by kind of drug, 2024
- Generic144 claims72%
- Brand-name46 claims23%
- Other11 claims5%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1102024: 3271%
Drugs named by CMS: 2 in 2024, 8 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. Dennis Hao Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen in 2019. Dr. Chen's most frequent co-authors are Ryan Lennex Brunsing, MD, PhD, Yuko Kono, MD and Robert M. Marks, MD.
Papers1
Dr. Chen's most frequent co-authors
- Ryan Lennex Brunsing, MD, PhD1 shared paper
- Yuko Kono, MD1 shared paper
- Robert M. Marks, MD1 shared paper
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 endocrinologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Dennis Hao Chen received $173 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Chen from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Beta Bionics, Inc. paid the most, $117.
General payments to Dr. Chen by program year, 2024 to 2025
Companies that paid Dr. Chen the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dennis Hao Chen graduated from Keck School of Medicine of USC
Dr. Chen graduated from Keck School of Medicine of USC in 2021.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Dennis Hao 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 |
| 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. Dennis Hao 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. Dennis Hao Chen's NPI number?
Dr. Dennis Hao Chen's NPI number is 1639759970. It was assigned on April 12, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Dennis Hao Chen?
Dr. Dennis Hao Chen is an endocrinologist in West Hollywood, California. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).
Where does Dr. Dennis Hao Chen practice?
Dr. Chen practices at 8700 Beverly Blvd, West Hollywood, CA 90048. Dr. Chen's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. Dmand AI also links Dr. Chen to 1 group practice or clinic.
What is Dr. Dennis Hao Chen's office phone number?
The practice phone on file for Dr. Chen is (323) 866-8600.
What is Dr. Dennis Hao Chen's medical license number?
Dr. Chen holds California license A193287.
What medical group is Dr. Dennis Hao Chen part of?
Dr. Chen is linked to Cedars-Sinai Medical Center.
Is Dr. Dennis Hao Chen board certified?
Yes. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Dennis Hao Chen go to medical school?
Dr. Chen graduated from Keck School of Medicine of USC in 2021.
What drugs does Dr. Dennis Hao Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium and Metformin HCl.
Has Dr. Dennis Hao Chen received payments from drug or device companies?
CMS Open Payments shows $173 in general payments to Dr. Chen from 3 companies from 2024 to 2025. The largest total came from Beta Bionics, Inc.
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How long has Dr. Dennis Hao Chen been practicing?
Dr. Chen graduated from medical school in 2021, 5 years ago.
Does Dr. Dennis Hao Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Dennis Hao Chen publish with?
Dr. Chen's most frequent co-authors are Ryan Lennex Brunsing, MD, PhD (1 shared paper), Yuko Kono, MD (1 shared paper) and Robert M. Marks, MD (1 shared paper).
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