EntrepreneurialCheck
XiaoSong Mu estimated net worth profile

XiaoSong Mu net worth

XiaoSong Mu Net Worth 2026 (Estimated) · CTO at Call9 · YC S15
est. wealth $14K

Quick answer

XiaoSong Mu's estimated net worth is $14K (range $10K – $21K) as of 2026. XiaoSong Mu is CTO at Call9. Call9 valuation.

XiaoSong Mu is CTO at Call9 (YC S15). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameXiaoSong Mu
RoleCTO
CompanyCall9
YC batchS15
Est. company val$1.0M
Assumed ownership1.4%
Est. paper wealth / net worth$14K
$10K – $21K
  • Company status: Inactive
  • Region: United States of America
  • Industries: Healthcare, Healthcare Services
  • Team size: 51
  • Website: http://callnine.com

Who is XiaoSong Mu?

XiaoSong Mu is a founder involved with Call9, a company that provides medical services for patients in nursing homes.

Highlights:

  • Y Combinator S15
  • Call9

About Call9

Call9 delivers true Emergency Medicine and Palliative Care at patients'​ bedsides. Currently in Skilled Nursing Facilities, Call9 decreases the time patients wait to see an EM Physician from an average of 64 minutes to moments in emergency situations.

In tandem with 24/7 onsite Clinical Care Specialists*, offsite Emergency Medicine Physicians see, diagnose and treat patients at the bedside via the Call9...

FAQ: XiaoSong Mu net worth and Call9 valuation

What is XiaoSong Mu's net worth?

XiaoSong Mu's estimated net worth is $14K (range $10K – $21K) as of 2026. XiaoSong Mu is CTO at Call9. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.

What is Call9 valuation?

Call9's estimated valuation on Entrepreneurial Check is $1.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.

What is XiaoSong Mu's role?

XiaoSong Mu is CTO at Call9, a Y Combinator-backed startup (batch S15).