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Allergy/Immunology

Robert J. Holzhauer, MD

Works at hospitals in San Luis Obispo, CA · California

Summary

Robert J. Holzhauer, MD (Allergy/Immunology) is listed by Medicare at 1 hospital in San Luis Obispo, CA. NPI 1710955976. 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 Robert J. Holzhauer, 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

Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
54Years since medical school (graduated 1972)
Tulane University School Of MedicineMedical school
MaleGender (as listed)
Allergy Partners of California IncGroup practice

Quick answers

Which hospitals does Robert J. Holzhauer work at?
Medicare's official clinician data lists Robert J. Holzhauer at 1 hospital: French Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Robert J. Holzhauer see patients?
Medicare's clinician data lists 2 practice locations, including San Luis Obispo, CA and Pismo Beach, CA. Call before your visit to confirm the address.
What is Robert J. Holzhauer's specialty?
Medicare lists Allergy/Immunology as the primary specialty, and also Pediatric Medicine.
Does Robert J. Holzhauer accept Medicare assignment?
Yes. Medicare's clinician data says Robert J. Holzhauer 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 Robert J. Holzhauer?
(805) 543-2744, as listed in official Medicare / NPI Registry data.
What is Robert J. Holzhauer's NPI number?
1710955976. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Robert J. Holzhauer works

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

Group practices

Medicare enrollment lists Robert J. Holzhauer as a member of this group (CMS data updated 2026-10-02).

  • Allergy Partners of California Inc12 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in California →

Other allergist and immunologists in San Luis Obispo

Clinicians with the same Medicare primary specialty in San Luis Obispo, CA — not a recommendation.

All allergist and immunologists in San Luis Obispo →

Clinician information

CredentialMD
Medical schoolTulane University School Of Medicine
Graduation year1972
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1710955976
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