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Pulmonary Disease

James S. Otoshi, MD

Works at hospitals in Escondido, CA · Poway, CA · California

Summary

James S. Otoshi, MD (Pulmonary Disease) is listed by Medicare at 2 hospitals in Escondido, CA and Poway, CA. NPI 1679681027. 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 James S. Otoshi, 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

Pulmonary DiseasePrimary specialty
YesAccepts Medicare assignment
53Years since medical school (graduated 1973)
Harvard Medical SchoolMedical school
MaleGender (as listed)
Arch Health Partners IncGroup practice

Quick answers

Which hospitals does James S. Otoshi work at?
Medicare's official clinician data lists James S. Otoshi at 2 hospitals: Palomar Health Downtown Campus and Palomar Medical Center Poway. This is where the clinician works or has privileges; call the hospital to confirm.
Where does James S. Otoshi see patients?
Medicare's clinician data lists 2 practice locations, including Poway, CA and Escondido, CA. Call before your visit to confirm the address.
What is James S. Otoshi's specialty?
Medicare lists Pulmonary Disease as the primary specialty, and also Internal Medicine.
Does James S. Otoshi accept Medicare assignment?
Yes. Medicare's clinician data says James S. Otoshi 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 James S. Otoshi?
(858) 675-3100, as listed in official Medicare / NPI Registry data.
What is James S. Otoshi's NPI number?
1679681027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where James S. Otoshi works

Medicare's Facility Affiliation Data lists James S. Otoshi 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 James S. Otoshi is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists James S. Otoshi as a member of this group (CMS data updated 2026-10-02).

  • Arch Health Partners Inc145 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in California →

Other pulmonologists in California

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

All pulmonologists in California →

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)1679681027
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