NPPES file of Aug 9, 2026

Dylan Thomas O'Reilly, MD

Allergy & Immunology Physician · Brighton, MI

Dylan Thomas O'Reilly, MD is an allergy & immunology physician with a practice address in Brighton, Michigan, and NPI 1831628486, issued on Jun 7, 2017. Check the license (Michigan 4301502514, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831628486
Name
Dylan Thomas O'Reilly
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
4301502514 MI
Self-reported in NPPES; status is on the state search
Practice location
7500 Challis RD, Brighton, MI 48116
Phone
(734) 647-5940
Enumerated
Jun 7, 2017
Record last updated
Aug 15, 2024
Medicare enrollment
Enrolled (PECOS I20200721002159); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2017
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 7500 Challis RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eyad Abu-Isa, MDRadiation Oncology Physician1396861936
  2. Kiley Bastien, PA-CPhysician Assistant1578913372
  3. Mariel Benjamin, MDAllergy & Immunology Physician1477895373
  4. Lizabeth Binns, PA-CPhysician Assistant1386721520
  5. Jillian Budzyn, PA-CPhysician Assistant1942646872
  6. Anne Cameron, MDUrogynecology and Reconstructive Pelvic Surgery (Urology) Physician1629267042

Verify Dylan Thomas O'Reilly in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301502514
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

67% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

245 Medicare Part D claims for 70 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.

  1. Dylan O'Reilly245
  2. Specialty average741

Most prescribed

  1. Azelastine Hcl43 claims
  2. Montelukast Sodium21 claims
  3. Xolair19 claims
  4. Fluticasone-Salmeterol17 claims
  5. Albuterol Sulfate Hfa13 claims
  6. Ipratropium Bromide11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $324.60

3 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dylan O'Reilly$324.60
  2. Specialty average$8,321.81

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Regents OF The University OF MichiganAnn Arbor, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dylan Thomas O'Reilly among 137 allergy & immunology physician records in Michigan

Dylan Thomas O'Reilly, MD is one of 137 allergy & immunology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 95% of them.

  • NPI issued2017 · 95% of these records are older, 4% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2017 · median 2001 among the 98 with a school on file
  • Record last updated2024 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Michigan

There are 137 allergy & immunology physician records in Michigan.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Mariel Benjamin, MDBrighton, MI 481161477895373
  2. Rajan Ravikumar, M.D.Brighton, MI 481161790734564
  3. Mark Zacks, M.D.Brighton, MI 481161881658953
  4. Sherry Zhou, MDAnn Arbor, MI 481091376921452
  5. Roula Daher, MDDearborn, MI 481241689938789
  6. Lawrence Hennessey, M.D.Ann Arbor, MI 481081629078142
  7. Sonia Thomas, MDDearborn, MI 481241043650732
  8. James Baldwin, MDAnn Arbor, MI 481051508955428

Common questions

What is Dylan Thomas O'Reilly, MD's NPI number?

Dylan Thomas O'Reilly, MD's National Provider Identifier (NPI) is 1831628486, issued on Jun 7, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Dylan Thomas O'Reilly, MD located?

The NPPES record lists a practice address at 7500 Challis RD, Brighton, MI, 48116. Phone: (734) 647-5940. Providers update this record themselves, so call before visiting.

How can I verify Dylan Thomas O'Reilly, MD's license?

NPPES lists Michigan license number 4301502514, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dylan Thomas O'Reilly, MD prescribe under Medicare Part D?

In 2024, Dylan Thomas O'Reilly, MD had 245 Medicare Part D claims for 70 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.