Yuhjung Tsai
Internal Medicine Physician · San Jose, CA
Yuhjung Tsai is an internal medicine physician with a practice address in San Jose, California, and NPI 1073651444, issued on Feb 1, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yuhjung Tsai
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- AJ4147357 MD
Self-reported in NPPES; status is on the state search - Practice location
- 250 Hospital Pkwy, San Jose, CA 95119
- Phone
- (408) 972-7000
- Enumerated
- Feb 1, 2007
- Record last updated
- Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150203000017); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 250 Hospital Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristine AmiiPhysical Therapist1356696975
- Franklin Amog, RNCritical Care Medicine Registered Nurse1376408914
- Rachel AranzasoSocial Worker1740659366
- Robert Atienza, MDAnatomic Pathology & Clinical Pathology Physician1609134725
- Elizabeth BaileyDietary Manager1346388758
- Heather BlakeCertified Registered Nurse Anesthetist1750771168
Verify Yuhjung Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
289 Medicare Part D claims for 106 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Breyna51 claims
- Epinephrine50 claims
- Fluticasone Propionate40 claims
- Azelastine Hcl36 claims
- Spiriva Respimat25 claims
- Montelukast Sodium19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yuhjung Tsai among 17,696 internal medicine physician records in California
Yuhjung Tsai is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2000 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
428 internal medicine physician records list a practice address in San Jose
They are 428 of the 20,925 NPPES records with a practice address in San Jose, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Jose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Monte Bernstein, M.D.San Jose, CA 951191730262593
- Jagpreet Bhatia, MDSan Jose, CA 951191205912722
- Malathi Charlu, MDSan Jose, CA 951191316023815
- Cornelia Chin, MDSan Jose, CA 951191104902634
- Monica Delzeit, M.D.San Jose, CA 951191912005349
- Sony Haris, MDSan Jose, CA 951191750467288
- Denley Jang, M.D.San Jose, CA 951191659479970
- John Kabahit, DOSan Jose, CA 951191073699583
Common questions
What is Yuhjung Tsai's NPI number?
Yuhjung Tsai's National Provider Identifier (NPI) is 1073651444, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Yuhjung Tsai located?
The NPPES record lists a practice address at 250 Hospital Pkwy, San Jose, CA, 95119. Phone: (408) 972-7000. Providers update this record themselves, so call before visiting.
How can I verify Yuhjung Tsai's license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Yuhjung Tsai prescribe under Medicare Part D?
In 2024, Yuhjung Tsai had 289 Medicare Part D claims for 106 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.