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Rheumatology

Michelle Sit, MD

Works at hospitals in Fairfield, CA · Davis, CA · Sacramento, CA … · California

Summary

Michelle Sit, MD (Rheumatology) is listed by Medicare at 4 hospitals in Fairfield, CA, Davis, CA and Sacramento, CA and other places. NPI 1740269513. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michelle Sit, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

RheumatologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
23Years since medical school (graduated 2003)
FemaleGender (as listed)
NorthBay Physicians Surgery Center, LLCGroup practice (+1 more)

Quick answers

Which hospitals does Michelle Sit work at?
Medicare's official clinician data lists Michelle Sit at 4 hospitals: NorthBay Medical Center, Sutter Davis Hospital, Sutter Medical Center, Sacramento and Sutter Solano Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michelle Sit see patients?
Medicare's clinician data lists 2 practice locations, including Vacaville, CA. Call before your visit to confirm the address.
What is Michelle Sit's specialty?
Medicare lists Rheumatology as the primary specialty.
Does Michelle Sit accept Medicare assignment?
Yes. Medicare's clinician data says Michelle Sit 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.
Does Michelle Sit offer telehealth?
Medicare's clinician data says Michelle Sit offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Michelle Sit?
(707) 624-7979, as listed in official Medicare / NPI Registry data.
What is Michelle Sit's NPI number?
1740269513. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michelle Sit works

Medicare's Facility Affiliation Data lists Michelle Sit at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michelle Sit is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michelle Sit as a member of these groups (CMS data updated 2026-10-02).

  • NorthBay Physicians Surgery Center, LLC324 clinicians in the group
  • NorthBay Health Medical Foundation213 clinicians in the group

Specialties

Find other Rheumatology doctors in California →

Other rheumatologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All rheumatologists in California →

Clinician information

CredentialMD
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1740269513
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians