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Internal Medicine

Cheryl Kellogg, MD

Works at hospitals in Newport Beach, CA · Laguna Hills, CA · Mission Viejo, CA · California

Summary

Cheryl Kellogg, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Newport Beach, CA, Laguna Hills, CA and Mission Viejo, CA. NPI 1376561027. 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 Cheryl Kellogg, 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
38Years since medical school (graduated 1988)
FemaleGender (as listed)

Quick answers

Which hospitals does Cheryl Kellogg work at?
Medicare's official clinician data lists Cheryl Kellogg at 3 hospitals: Hoag Memorial Hospital Presbyterian, Memorialcare Saddleback Medical Center and Providence Mission Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Cheryl Kellogg see patients?
Medicare's clinician data lists 1 practice location in Laguna Niguel, CA. Call before your visit to confirm the address.
What is Cheryl Kellogg's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Cheryl Kellogg accept Medicare assignment?
Yes. Medicare's clinician data says Cheryl Kellogg 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 Cheryl Kellogg?
(949) 499-1137, as listed in official Medicare / NPI Registry data.
What is Cheryl Kellogg's NPI number?
1376561027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Cheryl Kellogg works

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

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in California

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

All internal medicine doctors in California →

Clinician information

CredentialMD
Graduation year1988
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1376561027
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