Dr. Cornelius Albert Thiels, DO
- Medicare services, 2024
- 100
- Medicare patients, 2024
- 93
- Part D claims, 2024
- 63
- Publications
- 131
- Hospital affiliations
- 1
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Thiels' professional email, personal email and mobile number
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Dr. Cornelius Albert Thiels is a general surgeon in Rochester, Minnesota
Dr. Thiels practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Thiels' NPI, 1215373915, was assigned on May 21, 2013. Dr. Thiels graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2013. Dr. Thiels holds Minnesota license 58240.
- NPI
- 1215373915NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527208032
- NPI enumeration date
- May 21, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cornelius Albert Thiels practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Thiels' primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Cornelius Albert Thiels is affiliated with 2 sites of care and 1 medical group
Dr. Thiels' primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Thiels to 1 more hospice, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cornelius Albert Thiels' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thiels practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cornelius Albert Thiels is one of 616 general surgeons in Minnesota
Surgery is Dr. Thiels' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Thiels is licensed in Minnesota.
Specialties and state licenses
- Surgery, MinnesotaPrimary
Clinical focus
Dmand AI lists colon removal, esophagus, stomach, or upper small intestine surgery and gallbladder removal among the conditions Dr. Thiels treats.
General surgeons near Dr. Thiels
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. Cornelius Albert Thiels billed Medicare for 100 services in 2024
CMS data shows 100 Medicare services from Dr. Thiels across 6 procedure codes in 2024, for 93 Medicare patients. Medicare paid $9,582 for them.
Dr. Thiels' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 592024: 7425%
- Imaging
- 2023: 02024: 13
- Surgery
- 2023: 222024: 1341%
Where Dr. Thiels' Medicare services took place, 2024
- In an office7474%
- In a facility2626%
Dr. Thiels compared with the Minnesota median for general surgeons, 2024
- Dr. Thiels
- Minnesota median
- Medicare services
- 100vs 8419% above
- Medicare patients
- 93vs 96Close to median
- Part D claims
- 59vs 3474% above
Medians across 549 general surgeons in Minnesota with Dmand AI profiles that report each measure.
Dr. Thiels' most billed Medicare procedure codes, 2024
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. Thiels and other general surgeons in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cornelius Albert Thiels treated 93 Medicare patients in 2024, average age 71
CMS counts 93 Medicare patients who saw Dr. Thiels in 2024. The largest group is 65 to 74, with 57 patients. 68% of them have high blood pressure, and 66% have high cholesterol. Their average risk score is 1.67, 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. Thiels' median patient age at 68, with 45% women.
Dr. Thiels' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Thiels' Medicare patients by sex, 2024
- Women3841%
- Men5559%
Chronic conditions among Dr. Thiels' Medicare patients, 2024
- High blood pressure68%
- High cholesterol66%
- Cancer42%
- Arthritis30%
- Diabetes30%
- Ischemic heart disease28%
- Atrial fibrillation26%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thiels' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cornelius Albert Thiels wrote 63 Medicare Part D claims in 2024
In 2024, Dr. Thiels wrote 63 Medicare Part D claims for 23 patients. 98% of them were for generic drugs. CMS names the drug for 59 of them, across 3 drugs with 11 or more claims each, at $149 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Thiels' Part D claims by kind of drug, 2024
- Generic62 claims98%
- Brand-name and other1 claims2%
Dr. Thiels' 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. Thiels' Part D claims, 2024
- Antibiotics67%42 of 63 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: 142024: 59321%
Drugs named by CMS: 3 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
How Dr. Cornelius Albert Thiels takes part in Medicare
Dr. Thiels accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Cornelius Albert Thiels has 131 publications on record
Dmand AI links 131 papers to Dr. Thiels, published from 2008 to 2025. 2016 was the busiest year, with 18. The most frequent topics are Pancreatic Neoplasms, Analgesics, Opioid and Pain, Postoperative. Dr. Thiels has published most often in Ann Surg. Dr. Thiels' most frequent co-authors are Mark J. Truty, MD, Rory L. Smoot, MD and Susanne G. Warner, MD.
Dr. Thiels' papers by year, 2016 to 2025
Topics Dr. Thiels writes about most
- Pancreatic Neoplasms
- Analgesics, Opioid
- Pain, Postoperative
- Practice Patterns, Physicians'
- Postoperative Complications
- Adenocarcinoma
- Elective Surgical Procedures
- Pancreaticoduodenectomy
Dr. Thiels' most frequent co-authors
- Mark J. Truty, MD31 shared papers
- Rory L. Smoot, MD28 shared papers
- Susanne G. Warner, MD28 shared papers
Recent publications by Dr. Thiels
Ann Surg Oncol
See who Dr. Thiels researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thiels 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. Cornelius Albert Thiels received $17,405 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Thiels from 6 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 63% of the total. Intera Oncology, Inc paid the most, $5,791.
General payments to Dr. Thiels by program year, 2016 to 2025
General payments to Dr. Thiels by kind, 2016 to 2025
- Consulting fees$11,03163%
- Education$5,06829%
- Travel and lodging$8045%
- Food and beverage$5013%
Companies that paid Dr. Thiels the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cornelius Albert Thiels graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine
Dr. Thiels graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cornelius Albert Thiels'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) |
| 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) |
| 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. Cornelius Albert Thiels
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. Cornelius Albert Thiels' NPI number?
Dr. Cornelius Albert Thiels' NPI number is 1215373915. It was assigned on May 21, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Cornelius Albert Thiels?
Dr. Cornelius Albert Thiels is a general surgeon in Rochester, Minnesota. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Cornelius Albert Thiels practice?
Dr. Thiels practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Thiels' primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Thiels to 1 hospice.
What is Dr. Cornelius Albert Thiels' office phone number?
The practice phone on file for Dr. Thiels is (507) 255-5123.
What is Dr. Cornelius Albert Thiels' medical license number?
Dr. Thiels holds Minnesota license 58240.
Which hospitals is Dr. Cornelius Albert Thiels affiliated with?
Dr. Thiels practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota.
What medical group is Dr. Cornelius Albert Thiels part of?
Dr. Thiels is linked to Mayo Clinic.
Does Dr. Cornelius Albert Thiels accept Medicare?
Yes. CMS data shows Dr. Thiels billed Medicare for 100 services in 2024, and Dr. Thiels accepts Medicare assignment.
How many Medicare patients does Dr. Cornelius Albert Thiels see?
CMS counts 93 Medicare patients who saw Dr. Thiels in 2024, with an average age of 71.
What services does Dr. Cornelius Albert Thiels bill to Medicare?
In 2024, Dr. Thiels' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99204) and office visit, established patient (99212).
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Where did Dr. Cornelius Albert Thiels go to medical school?
Dr. Thiels graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2013.
What drugs does Dr. Cornelius Albert Thiels prescribe most?
In 2024 Medicare Part D data, Dr. Thiels' most prescribed drugs by claims were Metronidazole, Neomycin Sulfate and Ondansetron HCl.
Has Dr. Cornelius Albert Thiels received payments from drug or device companies?
CMS Open Payments shows $17,405 in general payments to Dr. Thiels from 6 companies from 2016 to 2025. The largest total came from Intera Oncology, Inc.
How long has Dr. Cornelius Albert Thiels been practicing?
Dr. Thiels graduated from medical school in 2013, 13 years ago.
Does Dr. Cornelius Albert Thiels do research?
Dmand AI links 131 publications to Dr. Thiels, published from 2008 to 2025.
Who does Dr. Cornelius Albert Thiels publish with?
Dr. Thiels' most frequent co-authors are Mark J. Truty, MD (31 shared papers), Rory L. Smoot, MD (28 shared papers) and Susanne G. Warner, MD (28 shared papers).
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