Aaron Bradley Klassen
- Medicare services, 2024
- 250
- Medicare patients, 2024
- 256
- Part D claims, 2024
- 36
- Hospital affiliations
- 1
- Industry payments
- $349
- 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 Aaron Klassen's professional email, personal email and mobile number
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Aaron Bradley Klassen is an emergency medicine physician in Rochester, Minnesota
Aaron Klassen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Aaron Klassen's NPI, 1750745428, was assigned on April 8, 2016. Aaron Klassen holds Minnesota license 62563.
- NPI
- 1750745428NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638461163
- NPI enumeration date
- April 8, 2016
- 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
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Aaron Bradley Klassen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Aaron Klassen's 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
Aaron Bradley Klassen is affiliated with 2 sites of care and 8 medical groups
Aaron Klassen's 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 Aaron Klassen to 7 more medical groups and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Aaron Bradley Klassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Aaron Klassen 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 site and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Aaron Bradley Klassen is one of 1,097 emergency medicine physicians in Minnesota
Emergency medicine is Aaron Klassen's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Aaron Klassen is licensed in Minnesota.
Specialties and state licenses
- Emergency medicine, MinnesotaPrimary
Emergency medicine physicians near Aaron Klassen
Counts of emergency medicine physicians 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
Aaron Bradley Klassen billed Medicare for 250 services in 2024
CMS data shows 250 Medicare services from Aaron Klassen across 3 procedure codes in 2024, for 256 Medicare patients. Medicare paid $31,025 for them. Every service was in a facility, such as a hospital, rather than an office.
Aaron Klassen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2982024: 25016%
Aaron Klassen compared with the Minnesota median for emergency medicine physicians, 2024
- Aaron Klassen
- Minnesota median
- Medicare services
- 250vs 2385% above
- Medicare patients
- 256vs 19829% above
Medians across 1,063 emergency medicine physicians in Minnesota with Dmand AI profiles that report each measure.
Aaron Klassen's 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 Aaron Klassen and other emergency medicine physicians in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Aaron Bradley Klassen treated 256 Medicare patients in 2024, average age 73
CMS counts 256 Medicare patients who saw Aaron Klassen in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Aaron Klassen's median patient age at 72, with 54% women.
Aaron Klassen's Medicare patients by age, 2024
Aaron Klassen's Medicare patients by sex, 2024
- Women13352%
- Men12348%
Chronic conditions among Aaron Klassen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis49%
- Chronic kidney disease44%
- Mood disorders42%
- Anxiety39%
- Atrial fibrillation39%
- Depression39%
Share of Medicare patients with each condition. A patient can have several.
Aaron Klassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women54%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Aaron Bradley Klassen wrote 36 Medicare Part D claims in 2024
In 2024, Aaron Klassen wrote 36 Medicare Part D claims for 29 patients. 92% of them were for generic drugs.
Aaron Klassen's Part D claims by kind of drug, 2024
- Generic33 claims92%
- Brand-name and other3 claims8%
Drug classes CMS tracks in Aaron Klassen's Part D claims, 2024
- Antibiotics42%15 of 36 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Aaron Bradley Klassen takes part in Medicare
Aaron Klassen 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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Aaron Bradley Klassen received $349 in industry payments from 2022 to 2025
CMS Open Payments shows 3 general payments to Aaron Klassen from 2 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $259.
General payments to Aaron Klassen by program year, 2022 to 2025
Companies that paid Aaron Klassen 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 Aaron Bradley Klassen'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 (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) |
| 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 Aaron Bradley Klassen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Aaron Bradley Klassen's NPI number?
Aaron Bradley Klassen's NPI number is 1750745428. It was assigned on April 8, 2016, and it is active in the NPI Registry.
What does Aaron Bradley Klassen specialize in?
Aaron Bradley Klassen is an emergency medicine physician in Rochester, Minnesota. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Aaron Bradley Klassen practice?
Aaron Klassen practices at 1216 Second Street Southwest, Rochester, MN 55902. Aaron Klassen's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Aaron Klassen to 7 medical groups and 1 hospice.
What is Aaron Bradley Klassen's office phone number?
The practice phone on file for Aaron Klassen is (507) 255-5123.
What is Aaron Bradley Klassen's medical license number?
Aaron Klassen holds Minnesota license 62563.
Which hospitals is Aaron Bradley Klassen affiliated with?
Aaron Klassen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota.
What medical group is Aaron Bradley Klassen part of?
Aaron Klassen is linked to Mayo Clinic. Dmand AI links Aaron Klassen to 7 more medical groups.
Does Aaron Bradley Klassen accept Medicare?
Yes. CMS data shows Aaron Klassen billed Medicare for 250 services in 2024, and Aaron Klassen accepts Medicare assignment.
How many Medicare patients does Aaron Bradley Klassen see?
CMS counts 256 Medicare patients who saw Aaron Klassen in 2024, with an average age of 73.
What services does Aaron Bradley Klassen bill to Medicare?
In 2024, Aaron Klassen's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Has Aaron Bradley Klassen received payments from drug or device companies?
CMS Open Payments shows $349 in general payments to Aaron Klassen from 2 companies from 2022 to 2025. The largest total came from Medtronic, Inc.
How long has Aaron Bradley Klassen been practicing?
Aaron Klassen graduated from medical school in 2016, 10 years ago.
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