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Dr. Yun-Ching Chen, MD
NPI1437138799
- Part D claims, 2024
- 363
- Publications
- 12
- Hospital affiliations
- 2
- Industry payments
- $224
- State licenses
- 3
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Yun-Ching Chen is an internist in Stanford, California
Dr. Chen practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Chen's NPI, 1437138799, was assigned on January 13, 2006. Dr. Chen graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992. Dr. Chen holds California license C50623.
NPI and contact details
- NPI
- 1437138799NPI Registry (opens in a new tab)
- NPI enumeration date
- January 13, 2006
- NPI status
- Active
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Yun-Ching Chen practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Chen's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Yun-Ching Chen is affiliated with 2 sites of care
Dr. Chen's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Chen to 1 hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Yun-Ching Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | 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. Yun-Ching 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 board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Chen's licenses on file in 3 states: California, Michigan and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Michigan license
- Texas license
Internists near Dr. Chen
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California369internists in Stanford314internists at Stanford Hospital at 300 Pasteur Drive
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Yun-Ching Chen's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 63, with 90% 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 63
Patient panel by sex, all payers
- Women90%
- Men10%
Source: Dmand AI Patient Panel Data
Dr. Yun-Ching Chen wrote 363 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 363 Medicare Part D claims for 67 patients. 74% of them were for generic drugs. CMS names the drug for 210 of them, across 10 drugs with 11 or more claims each, at $12,851 in total drug cost. In 2023, CMS named 209 claims across 11 drugs.
Part D claims, 2024363
Drugs named by CMS10
Total drug cost$12,851
Part D patients67
Dr. Chen's Part D claims by kind of drug, 2024
- Generic269 claims74%
- Brand-name and other94 claims26%
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: 2092024: 210No change
Drugs named by CMS: 10 in 2024, 11 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. Yun-Ching Chen has 12 publications on record
Dmand AI links 12 papers to Dr. Chen, published from 2017 to 2021. 2021 was the busiest year, with 3. The most frequent topics are Cysts, Lung and Lung Neoplasms. Dr. Chen has published most often in PLoS Comput Biol. Dr. Chen's most frequent co-authors are Jonathan Hero Chung, Richard S. Lee, MD and Nehal N. Mehta, MD.
Papers12
Years published2017 to 2021
Dr. Chen's papers by year, 2017 to 2021
Topics Dr. Chen writes about most
- Cysts
- Lung
- Lung Neoplasms
- Lymphangioleiomyomatosis
- Cell Line
- Computational Biology
- CpG Islands
- DNA Methylation
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
CystsLungLung Neoplasms
Airway ObstructionArtificial OrgansCysts
Knowledge BasesMolecular Sequence AnnotationOrgan Specificity
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. Yun-Ching Chen received $224 in industry payments from 2016 to 2018
CMS Open Payments shows 2 general payments to Dr. Chen from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $115.
General payments to Dr. Chen by program year, 2016 to 2018
Companies that paid Dr. Chen the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Yun-Ching Chen graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Chen graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992. Dr. Chen is a member of ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Yun-Ching 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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. Yun-Ching 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. Yun-Ching Chen's NPI number?
Dr. Yun-Ching Chen's NPI number is 1437138799. It was assigned on January 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Yun-Ching Chen?
Dr. Yun-Ching Chen is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Yun-Ching Chen practice?
Dr. Chen practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Chen's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Chen to 1 hospital.
What is Dr. Yun-Ching Chen's office phone number?
The practice phone on file for Dr. Chen is (650) 723-4000.
What is Dr. Yun-Ching Chen's medical license number?
Dr. Chen holds California license C50623, one of the licenses on file in 3 states.
Which states has Dr. Yun-Ching Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in California (2001 to 2026), Michigan (1995 to 2005) and Texas (1993 to 1999).
Which hospitals is Dr. Yun-Ching Chen affiliated with?
Dr. Chen practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Chen to 1 more hospital.
Is Dr. Yun-Ching Chen board certified?
Yes. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Yun-Ching Chen go to medical school?
Dr. Chen graduated from Joe R. & Teresa Lozano Long School of Medicine in 1992.
What drugs does Dr. Yun-Ching Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Estradiol (Twice Weekly), Progesterone and Trazodone HCl.
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Has Dr. Yun-Ching Chen received payments from drug or device companies?
CMS Open Payments shows $224 in general payments to Dr. Chen from 2 companies from 2016 to 2018. The largest total came from Astellas Pharma US Inc.
How long has Dr. Yun-Ching Chen been practicing?
Dr. Chen graduated from medical school in 1992, 34 years ago.
Does Dr. Yun-Ching Chen do research?
Dmand AI links 12 publications to Dr. Chen, published from 2017 to 2021.
Who does Dr. Yun-Ching Chen publish with?
Dr. Chen's most frequent co-authors are Jonathan Hero Chung (1 shared paper), Richard S. Lee, MD (1 shared paper) and Nehal N. Mehta, MD (1 shared paper).
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