Quick answers
- Which hospitals does Sumit Kumar work at?
- Medicare's official clinician data lists Sumit Kumar at 1 hospital: Sutter Santa Rosa Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sumit Kumar see patients?
- Medicare's clinician data lists 4 practice locations, including Santa Rosa, CA and Palo Alto, CA. Call before your visit to confirm the address.
- What is Sumit Kumar's specialty?
- Medicare lists General Surgery as the primary specialty, and also Critical Care (Intensivists).
- Does Sumit Kumar accept Medicare assignment?
- Yes. Medicare's clinician data says Sumit Kumar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sumit Kumar?
- (707) 576-4500, as listed in official Medicare / NPI Registry data.
- What is Sumit Kumar's NPI number?
- 1811251929. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sumit Kumar works
Medicare's Facility Affiliation Data lists Sumit Kumar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050291
Practice locations
Addresses where Sumit Kumar is enrolled with Medicare (CMS data updated 2026-10-02).
- 30 Mark W Springs RdSanta Rosa, CA 95403 (707) 576‑4500
- 34 Mark W Springs RdSanta Rosa, CA 95403
- 3883 Airway DrSanta Rosa, CA 95403
- 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020
Group practices
Medicare enrollment lists Sumit Kumar as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- General Surgeryprimary
- Critical Care (Intensivists)also
Other general surgeons in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811251929 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians