Dr. Dylan Thomas O'Reilly, MD
- Medicare services, 2022
- 151
- Medicare patients, 2024
- 34
- Part D claims, 2024
- 245
- Hospital affiliations
- 1
- Industry payments
- $1,402
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
Find Dr. O'Reilly's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Dylan Thomas O'Reilly is an allergist and immunologist in Ann Arbor, Michigan
Dr. O'Reilly practices at University Hospital in Ann Arbor, Michigan.
Dr. O'Reilly's NPI, 1831628486, was assigned on June 7, 2017. Dr. O'Reilly graduated from Wayne State University School of Medicine in 2017. Dr. O'Reilly holds Michigan license 4301502514.
- NPI
- 1831628486NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759657638
- NPI enumeration date
- June 7, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dylan Thomas O'Reilly practices at University Hospital in Ann Arbor, Michigan
Dr. O'Reilly's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Dylan Thomas O'Reilly is affiliated with 3 sites of care and 1 medical group
Dr. O'Reilly's primary practice is University Hospital in Ann Arbor, Michigan. Dr. O'Reilly is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. O'Reilly to 1 more group practice or clinic, named with a free account. Dr. O'Reilly's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Dylan Thomas O'Reilly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Reilly practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dylan Thomas O'Reilly is one of 118 allergists and immunologists in Michigan
Allergy and immunology is Dr. O'Reilly's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. O'Reilly is licensed in Michigan.
Specialties and state licenses
- Allergy and immunology, MichiganPrimary
Allergists and immunologists near Dr. O'Reilly
Counts of allergists and immunologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Dylan Thomas O'Reilly billed Medicare for 151 services in 2022
CMS data shows 151 Medicare services from Dr. O'Reilly across 6 procedure codes in 2022, for 34 Medicare patients. Medicare paid $15,483 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. O'Reilly's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 4152022: 15164%
Dr. O'Reilly compared with the Michigan median for allergists and immunologists, 2022
- Dr. O'Reilly
- Michigan median
- Medicare services
- 151vs 1,00685% below
- Medicare patients
- 34vs 10467% below
- Part D claims
- 124vs 38468% below
Medians across 120 allergists and immunologists in Michigan with Dmand AI profiles that report each measure.
Dr. O'Reilly's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Reilly and other allergists and immunologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dylan Thomas O'Reilly treated 34 Medicare patients in 2024, average age 70
CMS counts 34 Medicare patients who saw Dr. O'Reilly in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.21, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. O'Reilly's median patient age at 36, with 60% women.
Dr. O'Reilly's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. O'Reilly's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Asthma62%
- Arthritis53%
- Anxiety41%
- Chronic kidney disease38%
- Diabetes38%
- COPD32%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Reilly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dylan Thomas O'Reilly wrote 245 Medicare Part D claims in 2024
In 2024, Dr. O'Reilly wrote 245 Medicare Part D claims for 70 patients. 59% of them were for generic drugs. CMS names the drug for 124 of them, across 6 drugs with 11 or more claims each, at $54,879 in total drug cost. In 2023, CMS named 119 claims across 6 drugs.
Dr. O'Reilly's Part D claims by kind of drug, 2024
- Generic144 claims59%
- Brand-name101 claims41%
Dr. O'Reilly's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1192024: 1244%
Drugs named by CMS: 6 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Dylan Thomas O'Reilly offers telehealth to Medicare patients
Dr. O'Reilly accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Reilly as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Dylan Thomas O'Reilly received $1,402 in industry payments from 2022 to 2024
CMS Open Payments shows 15 general payments to Dr. O'Reilly from 6 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $519.
General payments to Dr. O'Reilly by program year, 2022 to 2024
Companies that paid Dr. O'Reilly the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dylan Thomas O'Reilly graduated from Wayne State University School of Medicine
Dr. O'Reilly graduated from Wayne State University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dylan Thomas O'Reilly's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Dylan Thomas O'Reilly
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Dylan Thomas O'Reilly's NPI number?
Dr. Dylan Thomas O'Reilly's NPI number is 1831628486. It was assigned on June 7, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Dylan Thomas O'Reilly?
Dr. Dylan Thomas O'Reilly is an allergist and immunologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Dylan Thomas O'Reilly practice?
Dr. O'Reilly practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. O'Reilly's primary practice is University Hospital in Ann Arbor, Michigan. Dmand AI also links Dr. O'Reilly to 1 group practice or clinic.
What is Dr. Dylan Thomas O'Reilly's office phone number?
The practice phone on file for Dr. O'Reilly is (734) 936-4000.
What is Dr. Dylan Thomas O'Reilly's medical license number?
Dr. O'Reilly holds Michigan license 4301502514.
Which hospitals is Dr. Dylan Thomas O'Reilly affiliated with?
Dr. O'Reilly is affiliated with University Hospital.
What medical group is Dr. Dylan Thomas O'Reilly part of?
Dr. O'Reilly is linked to University of Michigan Health.
Does Dr. Dylan Thomas O'Reilly accept Medicare?
Yes. CMS data shows Dr. O'Reilly billed Medicare for 151 services in 2022, and Dr. O'Reilly accepts Medicare assignment.
Does Dr. Dylan Thomas O'Reilly offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. O'Reilly as offering telehealth services.
How many Medicare patients does Dr. Dylan Thomas O'Reilly see?
CMS counts 34 Medicare patients who saw Dr. O'Reilly in 2024, with an average age of 70.
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What services does Dr. Dylan Thomas O'Reilly bill to Medicare?
In 2022, Dr. O'Reilly's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99232).
Where did Dr. Dylan Thomas O'Reilly go to medical school?
Dr. O'Reilly graduated from Wayne State University School of Medicine in 2017.
What drugs does Dr. Dylan Thomas O'Reilly prescribe most?
In 2024 Medicare Part D data, Dr. O'Reilly's most prescribed drugs by claims were Azelastine HCl, Montelukast Sodium and Xolair.
Has Dr. Dylan Thomas O'Reilly received payments from drug or device companies?
CMS Open Payments shows $1,402 in general payments to Dr. O'Reilly from 6 companies from 2022 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Dylan Thomas O'Reilly been practicing?
Dr. O'Reilly graduated from medical school in 2017, 9 years ago.
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