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DR. REN M ARIIZUMI MD
NPI 1255832762
Anesthesiology in Minocqua, WI

Active since February 21, 2018PECOS EnrolledAccepts Medicare Assignment
88.39/100
CMS Quality Rating
9576 HWY 70, MINOCQUA, WI 54548(715) 358-1000 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 6, 2026, Mar 20, 2025, Aug 4, 2022 and 2 more (5 updates tracked since 2018).

About Dr. Ren M Ariizumi Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. REN M ARIIZUMI MD (NPI 1255832762) is an individual anesthesiology provider in Minocqua, Wisconsin, licensed in Wisconsin (72402-20) and active in the NPI registry since February 2018. He is enrolled in Medicare PECOS, is affiliated with Cleveland Clinic, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1255832762
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. REN M ARIIZUMICredential: MD
Location Address9576 HWY 70Minocqua, WI 54548-9067
Mailing Address2307 Sweet Pepperbrush LoopDumfries, VA 22026-3052 · (917) 836-7746
Phone(715) 358-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 21, 2018
Last NPPES UpdateFebruary 6, 20265 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2026
✔ NPI 1255832762 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in WI · 72402-20✔ Licensed in VA · 0101275609
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
9576 HWY 70, Minocqua, WI 54548
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Secondary Practice Locations 2

Location 19300 DeWitt LoopFort Belvoir, VA 22060-5285 · Phone (571) 231-3224
Location 2Walter Reed National Military Medical Center - Anesthes, 8901 Wisconsin AveBethesda, MD 20889-0004 · Phone (301) 295-0537

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ren M Ariizumi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486038668
PECOS Enrollment IDI20250325002443, I20260311004296
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cleveland Clinic

Acute Care Hospitals · Cleveland, OH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360180
Location9500 Euclid AvenueCleveland, OH 44195 · Cuyahoga County
Emergency services Birthing friendly

Marshfield Medical Center - Minocqua

Acute Care Hospitals · Minocqua, WI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520212
Location9576 Highway 70Minocqua, WI 54548 · Oneida County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.34
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MEGAN E SIMMONS PA
Physician Assistant
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
MICHAEL E M LARSON PHD
Psychologist
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1194
JOHN BOLINGER ESTER MD
Obstetrics & Gynecology
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
GRACE SCHWANTES
Pediatrics
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
ABIGAIL M. MALLEK KARCH PA
Physician Assistant
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
FERRY GUNAWAN MD
Hospitalist
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
ROSS TAYLOR GROESCHL DPM
Podiatrist
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 358-1000
JAMES E TOMIC MD
Radiology (Diagnostic Radiology)
9576 HWY 70
MINOCQUA, WI 54548
Oneida County (715) 387-5511

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ren Ariizumi's NPI number?

The NPI number for Ren Ariizumi is 1255832762. It was assigned to this individual provider in the NPPES registry on February 21, 2018.

Where is Ren Ariizumi located?

Ren Ariizumi practices at 9576 Hwy 70, Minocqua, WI 54548. The listed phone number is (715) 358-1000.

What is Ren Ariizumi's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Ren Ariizumi enrolled in Medicare?

Yes. Ren Ariizumi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ren Ariizumi accept?

Health plans from CareSource list Ren Ariizumi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ren Ariizumi affiliated with any hospitals?

According to CMS data, Ren Ariizumi is affiliated with Cleveland Clinic and Marshfield Medical Center - Minocqua.

When was this NPI record last updated?

The NPPES record for Ren Ariizumi was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.