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Internal Medicine

Kate E. Monahan, DO

Works at hospitals in Orange, CA · California

Summary

Kate E. Monahan, DO (Internal Medicine) is listed by Medicare at 1 hospital in Orange, CA. NPI 1043848732. 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 Kate E. Monahan, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
6Years since medical school (graduated 2020)
Touro Un Col Of Osteopathic Medicine, HendersonMedical school
FemaleGender (as listed)
Providence Medical FoundationGroup practice

Quick answers

Which hospitals does Kate E. Monahan work at?
Medicare's official clinician data lists Kate E. Monahan at 1 hospital: Providence St. Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kate E. Monahan see patients?
Medicare's clinician data lists 2 practice locations, including Fullerton, CA and Orange, CA. Call before your visit to confirm the address.
What is Kate E. Monahan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Kate E. Monahan accept Medicare assignment?
Yes. Medicare's clinician data says Kate E. Monahan 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 Kate E. Monahan offer telehealth?
Medicare's clinician data says Kate E. Monahan offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Kate E. Monahan?
(714) 992-5350, as listed in official Medicare / NPI Registry data.
What is Kate E. Monahan's NPI number?
1043848732. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kate E. Monahan works

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

Group practices

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

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fullerton

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

All internal medicine doctors in Fullerton →

Clinician information

CredentialDO
Medical schoolTouro Un Col Of Osteopathic Medicine, Henderson
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1043848732
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