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Dr. Leo Cheng Chen, MD
NPI1528453222
- Part D claims, 2024
- 403
- Publications
- 13
- Industry payments
- $672
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
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Dr. Leo Cheng Chen is a urologist in Santa Clara, California
Dr. Chen practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Chen's NPI, 1528453222, was assigned on March 31, 2015. Dr. Chen graduated from University of Pittsburgh School of Medicine in 2015. Dr. Chen's California license number on file is A144873.
NPI and contact details
- NPI
- 1528453222NPI Registry (opens in a new tab)
- NPI enumeration date
- March 31, 2015
- NPI status
- Active
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Leo Cheng Chen practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Chen's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leo Cheng Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chen to 1 more group practice or clinic, named with a free account.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Leo Cheng 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 |
|---|---|
| Permanente Medical Group Inc | 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. Leo Cheng Chen is one of 1,395 urologists in California
Urology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Chen is board certified in urology by the American Board of Urology. Dr. Chen has a license on file in California.
Specialties and state licenses
- Urology, CaliforniaPrimary
Urologists near Dr. Chen
Counts of urologists 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. Leo Cheng Chen's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 75, with 17% 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 75
Patient panel by sex, all payers
- Women17%
- Men83%
Source: Dmand AI Patient Panel Data
Dr. Leo Cheng Chen wrote 403 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 403 Medicare Part D claims for 158 patients. 91% of them were for generic drugs. CMS names the drug for 333 of them, across 9 drugs with 11 or more claims each, at $41,094 in total drug cost. In 2023, CMS named 525 claims across 13 drugs.
Part D claims, 2024403
Drugs named by CMS9
Total drug cost$41,094
Part D patients158
Dr. Chen's Part D claims by kind of drug, 2024
- Generic365 claims91%
- Brand-name38 claims9%
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
- Antibiotics14%58 of 403 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: 5252024: 33337%
Drugs named by CMS: 9 in 2024, 13 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. Leo Cheng Chen has 13 publications on record
Dmand AI links 13 papers to Dr. Chen, published from 2015 to 2022. 2021 was the busiest year, with 5. The most frequent topics are Prostatic Neoplasms, Magnetic Resonance Imaging and Prostate. Dr. Chen has published most often in Med Phys. Dr. Chen's most frequent co-authors are Christian Anton Kunder, MD, PhD, Geoffrey Alexander Sonn, MD and Pejman Ghanouni, MD, PhD.
Papers13
Years published2015 to 2022
Dr. Chen's papers by year, 2015 to 2022
Topics Dr. Chen writes about most
- Prostatic Neoplasms
- Magnetic Resonance Imaging
- Prostate
- Prostatectomy
- Cell Line
- Deep Learning
Dr. Chen's most frequent co-authors
- Christian Anton Kunder, MD, PhD5 shared papers
- Geoffrey Alexander Sonn, MD5 shared papers
- Pejman Ghanouni, MD, PhD4 shared papers
Recent publications by Dr. Chen
Deep LearningMagnetic Resonance ImagingProstate
Education, DistanceMagnetic Resonance ImagingNomograms
Magnetic Resonance ImagingNeoplasm GradingProstatectomy
Datasets as TopicDeep LearningFeasibility Studies
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 urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Leo Cheng Chen received $672 in industry payments from 2017 to 2025
CMS Open Payments shows 12 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. Boston Scientific Corporation paid the most, $362.
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
Dr. Leo Cheng Chen graduated from University of Pittsburgh School of Medicine
Dr. Chen graduated from University of Pittsburgh School of Medicine in 2015.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Sources for Dr. Leo Cheng 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. Leo Cheng 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. Leo Cheng Chen's NPI number?
Dr. Leo Cheng Chen's NPI number is 1528453222. It was assigned on March 31, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Leo Cheng Chen?
Dr. Leo Cheng Chen is a urologist in Santa Clara, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Leo Cheng Chen practice?
Dr. Chen practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Chen's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Chen to 1 group practice or clinic.
What is Dr. Leo Cheng Chen's office phone number?
The practice phone on file for Dr. Chen is (408) 851-1000.
What is Dr. Leo Cheng Chen's medical license number?
Dr. Chen's California license number on file is A144873.
What medical group is Dr. Leo Cheng Chen part of?
Dr. Chen is linked to The Permanente Medical Group, Inc.
Is Dr. Leo Cheng Chen board certified?
Yes. Dr. Chen is board certified in urology by the American Board of Urology.
Where did Dr. Leo Cheng Chen go to medical school?
Dr. Chen graduated from University of Pittsburgh School of Medicine in 2015.
What drugs does Dr. Leo Cheng Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Finasteride, Tamsulosin HCl and Myrbetriq.
Has Dr. Leo Cheng Chen received payments from drug or device companies?
CMS Open Payments shows $672 in general payments to Dr. Chen from 3 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
Show 3 more questionsShow fewer questions
How long has Dr. Leo Cheng Chen been practicing?
Dr. Chen graduated from medical school in 2015, 11 years ago.
Does Dr. Leo Cheng Chen do research?
Dmand AI links 13 publications to Dr. Chen, published from 2015 to 2022.
Who does Dr. Leo Cheng Chen publish with?
Dr. Chen's most frequent co-authors are Christian Anton Kunder, MD, PhD (5 shared papers), Geoffrey Alexander Sonn, MD (5 shared papers) and Pejman Ghanouni, MD, PhD (4 shared papers).
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