Michael Yu Zhang, M.D., PH.D.
Radiation Oncology Physician · Vallejo, CA
Michael Yu Zhang, M.D., PH.D. is a radiation oncology physician with a practice address in Vallejo, California, and NPI 1861856718, issued on Apr 7, 2016. Check the license (California A155764, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Yu Zhang
- Credential
- M.D., PH.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A155764 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Hospital Dr Ste 100, Vallejo, CA 94589
- Phone
- (707) 551-3400
- Enumerated
- Apr 7, 2016
- Record last updated
- Oct 26, 2022
- Medicare enrollment
- Enrolled (PECOS I20210825003326); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 100 Hospital Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Coe, M.D.Family Medicine Physician1295797405
Verify Michael Yu Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A155764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average radiation oncology physician in 2024
211 Medicare Part D claims for 80 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl42 claims
- Oxybutynin Chloride Er29 claims
- Famotidine19 claims
- Gabapentin14 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.
Industry payments in 2024: $466.59
8 payments; by number, the most common kind was food and beverage; the largest payer was Alphatec Spine, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Northern California Radiation Therapists And Oncologists Medical GroupVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Yu Zhang among 735 radiation oncology physician records in California
Michael Yu Zhang, M.D., PH.D. is one of 735 radiation 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 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2016 · median 2005 among the 545 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Vallejo → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Soheila Azghadi, MDWalnut Creek, CA 945981952794455
- Kuang-Hwa Chao, M.D.Walnut Creek, CA 945981073721569
- James Mitchell, MDWalnut Creek, CA 945981700057569
- Yeeyie Fogarty, M.D.San Leandro, CA 945771063586675
- Stephen Banks, MDSaint Helena, CA 945741770680852
- David Tate, MDSaint Helena, CA 945741336123504
- Gopal Sachdeva, MDEmeryville, CA 946081447449509
- Michael Faer, M.D.Oakland, CA 946091932192242
Common questions
What is Michael Yu Zhang, M.D., PH.D.'s NPI number?
Michael Yu Zhang, M.D., PH.D.'s National Provider Identifier (NPI) is 1861856718, issued on Apr 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Michael Yu Zhang, M.D., PH.D. located?
The NPPES record lists a practice address at 100 Hospital Dr Ste 100, Vallejo, CA, 94589. Phone: (707) 551-3400. Providers update this record themselves, so call before visiting.
How can I verify Michael Yu Zhang, M.D., PH.D.'s license?
NPPES lists California license number A155764, 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 Michael Yu Zhang, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Michael Yu Zhang, M.D., PH.D. had 211 Medicare Part D claims for 80 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.