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Anesthesiology

Nathaniel E. Calixto, MD

Works at hospitals in Sacramento, CA · California

Summary

Nathaniel E. Calixto, MD (Anesthesiology) is listed by Medicare at 1 hospital in Sacramento, CA. NPI 1558820464. 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 Nathaniel E. Calixto, 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

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Un Of California, Irvine, College Of MedicineMedical school
MaleGender (as listed)
Regents of the Univ of CaGroup practice

Quick answers

Which hospitals does Nathaniel E. Calixto work at?
Medicare's official clinician data lists Nathaniel E. Calixto at 1 hospital: University of California Davis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Nathaniel E. Calixto see patients?
Medicare's clinician data lists 2 practice locations, including Sacramento, CA. Call before your visit to confirm the address.
What is Nathaniel E. Calixto's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Nathaniel E. Calixto accept Medicare assignment?
Yes. Medicare's clinician data says Nathaniel E. Calixto 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 Nathaniel E. Calixto's NPI number?
1558820464. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Nathaniel E. Calixto works

Medicare's Facility Affiliation Data lists Nathaniel E. Calixto 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 Nathaniel E. Calixto is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Nathaniel E. Calixto as a member of this group (CMS data updated 2026-10-02).

  • Regents of the Univ of Ca1,584 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Sacramento

Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.

All anesthesiologists in Sacramento →

Clinician information

CredentialMD
Medical schoolUn Of California, Irvine, College Of Medicine
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558820464
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