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

Nurse Practitioner

Ronald M. Atillo, NP

Works at hospitals in Anaheim, CA · California

Summary

Ronald M. Atillo, NP (Nurse Practitioner) is listed by Medicare at 1 hospital in Anaheim, CA. NPI 1346747391. 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 Ronald M. Atillo, 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

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
MaleGender (as listed)
Chest and Critical Care Consultants a Medical GroupGroup practice

Quick answers

Which hospitals does Ronald M. Atillo work at?
Medicare's official clinician data lists Ronald M. Atillo at 1 hospital: AHMC Anaheim Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ronald M. Atillo see patients?
Medicare's clinician data lists 2 practice locations, including Anaheim, CA. Call before your visit to confirm the address.
What is Ronald M. Atillo's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Ronald M. Atillo accept Medicare assignment?
Yes. Medicare's clinician data says Ronald M. Atillo 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 Ronald M. Atillo?
(714) 772-8282, as listed in official Medicare / NPI Registry data.
What is Ronald M. Atillo's NPI number?
1346747391. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ronald M. Atillo works

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

Group practices

Medicare enrollment lists Ronald M. Atillo as a member of this group (CMS data updated 2026-10-02).

  • Chest and Critical Care Consultants a Medical Group71 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, California →

Other nurse practitioners in Anaheim

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

All nurse practitioners in Anaheim →

Clinician information

CredentialNP
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346747391
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