Dr. Jonathan Michael Claassen, MD
- Medicare services, 2024
- 179
- Medicare patients, 2024
- 287
- Hospital affiliations
- 3
- Industry payments
- $58
- Medical groups
- 3
- Practice address
- 2825 E Barnett Road, Medford, OR 97504
- Practice phone
- Call (541) 789-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Claassen's professional email, personal email and mobile number
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Dr. Jonathan Michael Claassen is an anesthesiologist in Medford, Oregon
Dr. Claassen practices at Asante Rogue Regional Medical Center in Medford, Oregon, part of Asante Health System.
Dr. Claassen's NPI, 1780799114, was assigned on August 19, 2006. Dr. Claassen graduated from University of North Carolina at Chapel Hill School of Medicine in 2002. Dr. Claassen holds Oregon license MD29027.
- NPI
- 1780799114NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436157252
- NPI enumeration date
- August 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (541) 789-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Michael Claassen practices at Asante Rogue Regional Medical Center in Medford, Oregon
Dr. Claassen's primary practice is Asante Rogue Regional Medical Center, at 2825 E Barnett Road, Medford, OR 97504 in Jackson County. The practice phone is (541) 789-7000.
- Asante Rogue Regional Medical Center2825 E Barnett Road, Medford, OR 97504 · Jackson CountyPhone(541) 789-7000
Source: Dmand AI Affiliation Data
Dr. Jonathan Michael Claassen is affiliated with 5 sites of care and 3 medical groups
Dr. Claassen's primary practice is Asante Rogue Regional Medical Center in Medford, Oregon, part of Asante Health System. Dr. Claassen is also affiliated with Providence Medford Medical Center. The medical group on file is Asante Rogue Regional Medical Center. Dmand AI also links Dr. Claassen to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Michael Claassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Claassen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asante Rogue Regional Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Jonathan Michael Claassen is one of 797 anesthesiologists in Oregon
Anesthesiology is Dr. Claassen's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Claassen's licenses on file in 2 states: Oregon and California.
Specialties and state licenses
- Anesthesiology, OregonPrimary
- California license
Anesthesiologists near Dr. Claassen
Counts of anesthesiologists 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. Jonathan Michael Claassen billed Medicare for 179 services in 2024
CMS data shows 179 Medicare services from Dr. Claassen across 11 procedure codes in 2024, for 287 Medicare patients. Medicare paid $24,637 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Claassen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1882024: 14423%
- Surgery
- 2023: 172024: 35106%
- Imaging
- 2023: 142024: 0100%
Dr. Claassen compared with the Oregon median for anesthesiologists, 2024
- Dr. Claassen
- Oregon median
- Medicare services
- 179vs 394.6 times
- Medicare patients
- 287vs 923.1 times
Medians across 720 anesthesiologists in Oregon with Dmand AI profiles that report each measure.
Dr. Claassen'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.
Need commercial claims for Dr. Claassen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Claassen and other anesthesiologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Michael Claassen treated 287 Medicare patients in 2024, average age 74
CMS counts 287 Medicare patients who saw Dr. Claassen in 2024. The largest group is 65 to 74, with 132 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Claassen's median patient age at 60, with 52% women.
Dr. Claassen's Medicare patients by age, 2024
Dr. Claassen's Medicare patients by sex, 2024
- Women17059%
- Men11741%
Chronic conditions among Dr. Claassen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis67%
- Mood disorders31%
- Diabetes29%
- Depression28%
- Anxiety25%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Claassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jonathan Michael Claassen takes part in Medicare
Dr. Claassen 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. Jonathan Michael Claassen received $58 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Claassen from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $33.
General payments to Dr. Claassen by program year, 2022 to 2023
Companies that paid Dr. Claassen the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan Michael Claassen graduated from University of North Carolina at Chapel Hill School of Medicine
Dr. Claassen graduated from University of North Carolina at Chapel Hill School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Michael Claassen'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) |
| 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. Jonathan Michael Claassen
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. Jonathan Michael Claassen's NPI number?
Dr. Jonathan Michael Claassen's NPI number is 1780799114. It was assigned on August 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Michael Claassen?
Dr. Jonathan Michael Claassen is an anesthesiologist in Medford, Oregon. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Jonathan Michael Claassen practice?
Dr. Claassen practices at 2825 E Barnett Road, Medford, OR 97504. Dr. Claassen's primary practice is Asante Rogue Regional Medical Center in Medford, Oregon, part of Asante Health System. Dmand AI also links Dr. Claassen to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. Jonathan Michael Claassen's office phone number?
The practice phone on file for Dr. Claassen is (541) 789-7000.
What is Dr. Jonathan Michael Claassen's medical license number?
Dr. Claassen holds Oregon license MD29027, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Michael Claassen been licensed in?
Dmand AI has state licenses on file for Dr. Claassen in Oregon and California.
Which hospitals is Dr. Jonathan Michael Claassen affiliated with?
Dr. Claassen practices at Asante Rogue Regional Medical Center in Medford, Oregon. Dr. Claassen is also affiliated with Providence Medford Medical Center. Dmand AI links Dr. Claassen to 1 more hospital.
What medical group is Dr. Jonathan Michael Claassen part of?
Dr. Claassen is linked to Asante Rogue Regional Medical Center. Dmand AI links Dr. Claassen to 2 more medical groups.
Does Dr. Jonathan Michael Claassen accept Medicare?
Yes. CMS data shows Dr. Claassen billed Medicare for 179 services in 2024, and Dr. Claassen accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan Michael Claassen see?
CMS counts 287 Medicare patients who saw Dr. Claassen in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Jonathan Michael Claassen bill to Medicare?
In 2024, Dr. Claassen's most billed Medicare services were anesthesia (00731), anesthesia (01402) and surgery: brain, spine and nerves (64447).
Where did Dr. Jonathan Michael Claassen go to medical school?
Dr. Claassen graduated from University of North Carolina at Chapel Hill School of Medicine in 2002.
Has Dr. Jonathan Michael Claassen received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Claassen from 2 companies from 2022 to 2023. The largest total came from Abiomed.
How long has Dr. Jonathan Michael Claassen been practicing?
Dr. Claassen graduated from medical school in 2002, 24 years ago.
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