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Allergy/Immunology

Dylan O'Reilly, MD

Works at hospitals in Ann Arbor, MI · Michigan

Summary

Dylan O'Reilly, MD (Allergy/Immunology) is listed by Medicare at 1 hospital in Ann Arbor, MI. NPI 1831628486. 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 Dylan O'Reilly, 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
YesOffers telehealth
9Years since medical school (graduated 2017)
Wayne State University School Of MedicineMedical school
MaleGender (as listed)
Regents of the University of MichiganGroup practice

Quick answers

Which hospitals does Dylan O'Reilly work at?
Medicare's official clinician data lists Dylan O'Reilly at 1 hospital: University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Dylan O'Reilly see patients?
Medicare's clinician data lists 9 practice locations, including Ann Arbor, MI, Northville, MI and Brighton, MI. Call before your visit to confirm the address.
What is Dylan O'Reilly's specialty?
Medicare lists Allergy/Immunology as the primary specialty, and also Internal Medicine.
Does Dylan O'Reilly accept Medicare assignment?
Yes. Medicare's clinician data says Dylan O'Reilly 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 Dylan O'Reilly offer telehealth?
Medicare's clinician data says Dylan O'Reilly offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Dylan O'Reilly?
(734) 936-4185, as listed in official Medicare / NPI Registry data.
What is Dylan O'Reilly's NPI number?
1831628486. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Dylan O'Reilly works

Medicare's Facility Affiliation Data lists Dylan O'Reilly 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 Dylan O'Reilly is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.

Group practices

Medicare enrollment lists Dylan O'Reilly as a member of this group (CMS data updated 2026-10-02).

  • Regents of the University of Michigan3,346 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Michigan →

Other allergist and immunologists in Ann Arbor

Clinicians with the same Medicare primary specialty in Ann Arbor, MI — not a recommendation.

All allergist and immunologists in Ann Arbor →

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1831628486
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