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Anesthesiologists
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Medicare + 7 Networks
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About Dr. Ren Ariizumi
Background and practice information
Dr. Ren Ariizumi is an anesthesiologist with over 8 years of clinical experience serving patients in the Marshfield, WI area. He completed his medical training at Other and has been in practice since 2018. He currently practices at Mchs Hospitals Inc.
Dr. Ren Ariizumi has earned an outstanding quality rating from the Centers for Medicare & Medicaid Services, scoring 94.1 out of 100 on the MIPS quality assessment — placing him among the top-performing providers in his specialty. Dr. Ren Ariizumi is in-network with 7 insurance providers, including Aetna, CareFirst BCBS, Cigna, and 4 more. Patients are encouraged to verify coverage with his office before scheduling an appointment.
At a Glance
Education
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Claim this profilePractice Locations
4 locations
Mchs Hospitals Inc
Primary1000 N Oak Ave
Marshfield, WI 54449
(715) 387-5511
Mchs Hospitals Inc
1000 N Oak Ave
Marshfield, WI 54449
View 2 more locations
Smg Anesthesia Specialists Llc
500 Martha Jefferson Dr
Charlottesville, VA 22911
(434) 654-7000
Mchs Hospitals Inc
9576 Hwy 70
Minocqua, WI 54548
(715) 358-1710
Insurance Networks
Accepted insurance plans and networks
Dr. Ren Ariizumi accepts 49 plans from 7 insurers, including Cigna, UnitedHealthcare, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Safety
CMS quality performance and patient safety measures
Exceptional
CMS Quality Score · Out of 100
Dr. Ariizumi received an overall quality score of 94.1 out of 100 from the Centers for Medicare & Medicaid Services (CMS), reflecting exceptional performance across clinical quality, patient safety, and care coordination. This score places Dr. Ariizumi among the highest-performing anesthesiologists in Marshfield, WI and nationwide. When searching for a top-rated anesthesiologist, a CMS quality score at this level indicates a strong commitment to evidence-based, high-quality patient care.
Clinical Quality
78.5/100Measures the quality of care provided based on clinical outcomes and patient safety
Health IT Adoption
100.0/100Measures adoption of electronic health records and patient access to health information
Care Improvement
40.0/40Reflects participation in activities that improve clinical practice and patient engagement
Source: CMS Merit-based Incentive Payment System
Patient Reviews
Reviews and ratings from patients
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About Anesthesiology
Specialty overview and common conditions
An anesthesiologist is a physician who specializes in perioperative medicine, pain management, and critical care. These medical experts ensure patient safety and comfort before, during, and after surgical and medical procedures by administering anesthesia, monitoring vital functions, and managing pa...
Common conditions treated by anesthesiology specialists:
- General Anesthesia Administration
- Regional Anesthesia
- Monitored Anesthesia Care (MAC)
- Obstetric Anesthesia
Frequently Asked Questions
Common questions about Ren Ariizumi
Does Dr. Ariizumi accept Medicare?
Yes, Dr. Ariizumi accepts Medicare assignment. Patients with Medicare coverage can see Dr. Ariizumi and typically pay less out of pocket when using a provider who accepts Medicare assignment.
What insurance does Dr. Ariizumi accept?
Dr. Ariizumi is in-network with 7 insurance providers, including Aetna, CareFirst BCBS, Cigna, Medicare, Oxford Health Plans (UHC), and 2 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Dr. Ariizumi's office before scheduling.
Does Dr. Ariizumi offer telehealth or virtual appointments?
Dr. Ariizumi does not currently list telehealth services. For virtual care options, contact the office directly or consider other anesthesiology providers in Marshfield who offer telehealth.
What conditions does Dr. Ariizumi treat?
As a anesthesiology specialist, Dr. Ariizumi commonly treats conditions including general anesthesia administration, regional anesthesia, monitored anesthesia care (mac), obstetric anesthesia, chronic pain management, and other related health concerns. Contact the office to discuss your specific healthcare needs.
What is Dr. Ariizumi's quality rating?
Dr. Ariizumi has received an outstanding quality score of 94.1 out of 100 from the Centers for Medicare & Medicaid Services (CMS) through the Merit-based Incentive Payment System (MIPS). This score reflects performance across quality measures, promoting interoperability, improvement activities, and cost efficiency.
Where did Dr. Ariizumi go to medical school?
Dr. Ariizumi completed medical training at Other and has been practicing since 2018, bringing over 8 years of clinical experience.
Where is Dr. Ariizumi's office located?
Dr. Ariizumi practices at 1000 N OAK AVE, Marshfield, WI 54449 at MCHS HOSPITALS INC. You can reach the office by calling (715) 387-5511.
How do I make an appointment with Dr. Ariizumi?
To schedule an appointment with Dr. Ariizumi, call the office at (715) 387-5511. New patients should have their insurance information and medical records ready when calling.
Data source: CMS National Provider Registry ·
Other Anesthesiologists Nearby
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Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards