Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Infectious Disease

Stephen W. Hosea, MD

Works at hospitals in Santa Barbara, CA · Lompoc, CA · Solvang, CA · California

Summary

Stephen W. Hosea, MD (Infectious Disease) is listed by Medicare at 4 hospitals in Santa Barbara, CA, Lompoc, CA and Solvang, CA. NPI 1457411050. 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 Stephen W. Hosea, 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

Infectious DiseasePrimary specialty
YesAccepts Medicare assignment
53Years since medical school (graduated 1973)
Harvard Medical SchoolMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Stephen W. Hosea work at?
Medicare's official clinician data lists Stephen W. Hosea at 4 hospitals: Goleta Valley Cottage Hospital, Lompoc Valley Medical Center, Santa Barbara Cottage Hospital and Santa Ynez Valley Cottage Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Stephen W. Hosea see patients?
Medicare's clinician data lists 2 practice locations, including Santa Barbara, CA. Call before your visit to confirm the address.
What is Stephen W. Hosea's specialty?
Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
Does Stephen W. Hosea accept Medicare assignment?
Yes. Medicare's clinician data says Stephen W. Hosea 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 Stephen W. Hosea?
(805) 681-7800, as listed in official Medicare / NPI Registry data.
What is Stephen W. Hosea's NPI number?
1457411050. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Stephen W. Hosea works

Medicare's Facility Affiliation Data lists Stephen W. Hosea 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 Stephen W. Hosea is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Stephen W. Hosea as a member of these groups (CMS data updated 2026-10-02).

  • Sansum Clinic320 clinicians in the group
  • Cottage Medical Associates6 clinicians in the group

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in Santa Barbara

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

All infectious disease doctors in Santa Barbara →

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year1973
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1457411050
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