James Yu-Chih Tsai, M.D.
Hematology & Oncology Physician · Hemet, CA
James Yu-Chih Tsai, M.D. is a hematology & oncology physician with a practice address in Hemet, California, and NPI 1437152857, issued on May 31, 2005. Check the license (California A70963, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Yu-Chih Tsai
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A70963 CA
Self-reported in NPPES; status is on the state search - Practice location
- 201 N Laursen St, Hemet, CA 92543
- Phone
- (951) 652-3333
- Enumerated
- May 31, 2005
- Record last updated
- Aug 27, 2025
- Fax
- (951) 652-8892
- Medicaid ID
- 00A709630 CA
- Medicare enrollment
- Enrolled (PECOS I20040618001059); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify James Yu-Chih Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70963Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average hematology & oncology physician in 2024
991 Medicare Part D claims for 118 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 93 claims were for opioids.
Most prescribed
- Anastrozole81 claims
- Hydroxyurea64 claims
- Ondansetron Hcl42 claims
- Hydrocodone-Acetaminophen36 claims
- Pantoprazole Sodium35 claims
- Acyclovir30 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $279.57
12 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Yu-Chih Tsai among 1,583 hematology & oncology physician records in California
James Yu-Chih Tsai, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1997 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Hemet → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Kishore Sehgal, M.D.Hemet, CA 925431689671034
- Keerti Khandelwal, MDMoreno Valley, CA 925551972746287
- Walter Quan, M.D.Moreno Valley, CA 925551760479000
- Muhammad Muslim, MDRiverside, CA 925061861571218
- Ghaleb Saab, MDRiverside, CA 925061396720850
- Vaishali Saste, M.D.Riverside, CA 925061902950033
- Xinting Fu, MDRiverside, CA 925051770650582
- Fawaz Gailani, MDRiverside, CA 925051013084839
Common questions
What is James Yu-Chih Tsai, M.D.'s NPI number?
James Yu-Chih Tsai, M.D.'s National Provider Identifier (NPI) is 1437152857, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Yu-Chih Tsai, M.D. located?
The NPPES record lists a practice address at 201 N Laursen St, Hemet, CA, 92543. Phone: (951) 652-3333. Providers update this record themselves, so call before visiting.
How can I verify James Yu-Chih Tsai, M.D.'s license?
NPPES lists California license number A70963, as entered by the provider. 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 James Yu-Chih Tsai, M.D. prescribe under Medicare Part D?
In 2024, James Yu-Chih Tsai, M.D. had 991 Medicare Part D claims for 118 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is James Yu-Chih Tsai, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.