Dr. Killian Llewellyn, DO
- Part D claims, 2024
- 100
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $3,092
- State license
- 1
- Practice address
- 44201 Dequindre Road, Troy, MI 48085
- Practice phone
- Call (248) 964-8800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Llewellyn's professional email, personal email and mobile number
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Dr. Killian Llewellyn is a general surgeon in Troy, Michigan
Dr. Llewellyn practices at Corewell Health Beaumont Troy Hospital in Troy, Michigan, part of Corewell Health.
Dr. Llewellyn's NPI, 1154904514, was assigned on May 4, 2021. Dr. Llewellyn holds Michigan license 5151014813.
- NPI
- 1154904514NPI Registry (opens in a new tab)
- NPI enumeration date
- May 4, 2021
- NPI status
- Active
- Practice phone
- (248) 964-8800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Killian Llewellyn practices at Corewell Health Beaumont Troy Hospital in Troy, Michigan
Dr. Llewellyn's primary practice is Corewell Health Beaumont Troy Hospital, at 44201 Dequindre Road, Troy, MI 48085 in Oakland County. The practice phone is (248) 964-8800.
- Corewell Health Beaumont Troy Hospital44201 Dequindre Road, Troy, MI 48085 · Oakland CountyPhone(248) 964-8800
Source: Dmand AI Affiliation Data
Dr. Killian Llewellyn is affiliated with 1 site of care
Dr. Llewellyn's primary practice is Corewell Health Beaumont Troy Hospital in Troy, Michigan, part of Corewell Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Killian Llewellyn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Llewellyn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Beaumont Troy Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Killian Llewellyn is one of 1,095 general surgeons in Michigan
Surgery is Dr. Llewellyn's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Llewellyn is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Llewellyn
Counts of general surgeons 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. Killian Llewellyn's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Llewellyn's median patient age at 70, with 50% women.
Dr. Llewellyn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Killian Llewellyn wrote 100 Medicare Part D claims in 2024
In 2024, Dr. Llewellyn wrote 100 Medicare Part D claims for 66 patients. 99% of them were for generic drugs. CMS names the drug for 69 of them, across 2 drugs with 11 or more claims each, at $149 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Dr. Llewellyn's Part D claims by kind of drug, 2024
- Generic99 claims99%
- Brand-name and other1 claims1%
Dr. Llewellyn'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.
Drug classes CMS tracks in Dr. Llewellyn's Part D claims, 2024
- Opioids52%52 of 100 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 152024: 69360%
Drugs named by CMS: 2 in 2024, 1 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
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Dr. Killian Llewellyn has 3 publications on record
Dmand AI links 3 papers to Dr. Llewellyn, published from 2018 to 2024. Dr. Llewellyn has published most often in Cureus. Dr. Llewellyn's most frequent co-authors are Jeffrey Richard Gerken, DO, Ryan Matthew Johnson, MD and Michaela Knaggs.
Dr. Llewellyn's papers by year, 2018 to 2024
Dr. Llewellyn's most frequent co-authors
- Jeffrey Richard Gerken, DO1 shared paper
- Ryan Matthew Johnson, MD1 shared paper
- Michaela Knaggs1 shared paper
Recent publications by Dr. Llewellyn
See who Dr. Llewellyn researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Llewellyn works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Killian Llewellyn received $3,092 in industry payments from 2022 to 2025
CMS Open Payments shows 32 general payments to Dr. Llewellyn from 21 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $390.
General payments to Dr. Llewellyn by program year, 2022 to 2025
Companies that paid Dr. Llewellyn the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Killian Llewellyn'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Killian Llewellyn
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. Killian Llewellyn's NPI number?
Dr. Killian Llewellyn's NPI number is 1154904514. It was assigned on May 4, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Killian Llewellyn?
Dr. Killian Llewellyn is a general surgeon in Troy, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Killian Llewellyn practice?
Dr. Llewellyn practices at 44201 Dequindre Road, Troy, MI 48085. Dr. Llewellyn's primary practice is Corewell Health Beaumont Troy Hospital in Troy, Michigan, part of Corewell Health.
What is Dr. Killian Llewellyn's office phone number?
The practice phone on file for Dr. Llewellyn is (248) 964-8800.
What is Dr. Killian Llewellyn's medical license number?
Dr. Llewellyn holds Michigan license 5151014813.
Which hospitals is Dr. Killian Llewellyn affiliated with?
Dr. Llewellyn practices at Corewell Health Beaumont Troy Hospital in Troy, Michigan.
What drugs does Dr. Killian Llewellyn prescribe most?
In 2024 Medicare Part D data, Dr. Llewellyn's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Ibuprofen.
Has Dr. Killian Llewellyn received payments from drug or device companies?
CMS Open Payments shows $3,092 in general payments to Dr. Llewellyn from 21 companies from 2022 to 2025. The largest total came from Kerecis Limited.
How long has Dr. Killian Llewellyn been practicing?
Dr. Llewellyn's NPI was assigned in 2021.
Does Dr. Killian Llewellyn do research?
Dmand AI links 3 publications to Dr. Llewellyn, published from 2018 to 2024.
Who does Dr. Killian Llewellyn publish with?
Dr. Llewellyn's most frequent co-authors are Jeffrey Richard Gerken, DO (1 shared paper), Ryan Matthew Johnson, MD (1 shared paper) and Michaela Knaggs (1 shared paper).
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