Xi Zhai, DO
General Practice Physician · Castro Valley, CA
Xi Zhai, DO is a general practice physician with a practice address in Castro Valley, California, and NPI 1083148050, issued on Apr 17, 2017. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Xi Zhai
- Credential
- DO
- Primary taxonomy
- General Practice Physician 208D00000X
- Practice location
- 19845 Lake Chabot RD Ste 205, Castro Valley, CA 94546
- Phone
- (510) 582-6424
- Enumerated
- Apr 17, 2017
- Entity
- Type 1 · individual
Also registered at 19845 Lake Chabot RD Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christina Cu-Unjieng, PT, DPTPhysical Therapist1003214032
- Inna Lipkind, NPNurse Practitioner1407563331
- Rinku Shrivastava, M.D.Family Medicine Physician1225369119
- Parminder SidhuFamily Nurse Practitioner1225786049
Verify Xi Zhai 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
The practice group's Medicare quality score for 2023: 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
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Common questions
What is Xi Zhai, DO's NPI number?
Xi Zhai, DO's National Provider Identifier (NPI) is 1083148050, issued on Apr 17, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Xi Zhai, DO located?
The NPPES record lists a practice address at 19845 Lake Chabot RD Ste 205, Castro Valley, CA, 94546. Phone: (510) 582-6424. Providers update this record themselves, so call before visiting.
How can I verify Xi Zhai, DO'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.
What is Xi Zhai, DO's Medicare quality score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.