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Infectious Disease

Pauline Ho, MD

Works at hospitals in Orange, CA · Fullerton, CA · Whittier, CA · California

Summary

Pauline Ho, MD (Infectious Disease) is listed by Medicare at 4 hospitals in Orange, CA, Fullerton, CA and Whittier, CA. NPI 1194854794. 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 Pauline Ho, 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
YesOffers telehealth
29Years since medical school (graduated 1997)
Tufts University School Of MedicineMedical school
FemaleGender (as listed)
Petreccia and Trotter Medical CorporationGroup practice

Quick answers

Which hospitals does Pauline Ho work at?
Medicare's official clinician data lists Pauline Ho at 4 hospitals: Providence St. Joseph Hospital, Providence St. Jude Medical Center, UCI Health-Orange and Whittier Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Pauline Ho see patients?
Medicare's clinician data lists 1 practice location in Placentia, CA. Call before your visit to confirm the address.
What is Pauline Ho's specialty?
Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
Does Pauline Ho accept Medicare assignment?
Yes. Medicare's clinician data says Pauline Ho 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 Pauline Ho offer telehealth?
Medicare's clinician data says Pauline Ho offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Pauline Ho?
(714) 996-6500, as listed in official Medicare / NPI Registry data.
What is Pauline Ho's NPI number?
1194854794. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Pauline Ho works

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

Group practices

Medicare enrollment lists Pauline Ho as a member of this group (CMS data updated 2026-10-02).

  • Petreccia and Trotter Medical Corporation3 clinicians in the group

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in California

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

All infectious disease doctors in California →

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1194854794
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