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Hematology/Oncology

Ronald H. Kawauchi, MD

Works at hospitals in Lansing, MI · Flint, MI · Owosso, MI · Michigan

Summary

Dr. Ronald H. Kawauchi, MD is a hematologist-oncologist at 3337 Britton Rd, Perry, MI 48872. Phone: (517) 625-3004. Accepts Medicare assignment. In 2024, Ronald H. Kawauchi had 286 Original Medicare patients and 880 services. NPI 1275625147. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Hematologist-oncologist (Medicare lists Hematology/Oncology)
  • Address: 3337 Britton Rd, Perry, MI 48872 · Directions (2 more locations)
  • Phone: (517) 625‑3004
  • Medicare: Accepts Medicare assignment
  • Hospitals: Edward W Sparrow Hospital, McLaren Flint, McLaren Greater Lansing and 1 more
  • Group practice: Memorial Hospital
  • Medical school: State University Of New York At Buffalo School Of Medicine · graduated 1987 (39 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald H. Kawauchi, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ronald H. Kawauchi accept Medicare assignment?
Yes. Medicare's clinician data says Ronald H. Kawauchi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ronald H. Kawauchi see?
In 2024, CMS data shows 286 Original Medicare patients and 880 services for Ronald H. Kawauchi. This counts Original Medicare only and measures volume, not quality.
What is Ronald H. Kawauchi's NPI number?
1275625147. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ronald H. Kawauchi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients286
Services billed to Medicare880
Different services or procedures13
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)592 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)112 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)38 services
  4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)29 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)23 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis56%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)45%
  • COPD38%
  • Chronic kidney disease35%

Hospitals where Ronald H. Kawauchi works

Medicare's Facility Affiliation Data lists Ronald H. Kawauchi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230230
  • McLaren FlintFlint, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230141
  • McLaren Greater LansingLansing, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230167
  • Memorial HealthcareOwosso, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230121

Practice locations

Addresses where Ronald H. Kawauchi is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3337 Britton RdPerry, MI 48872 (517) 625‑3004
  • 721 N Shiawassee StOwosso, MI 48867
  • 826 W King StOwosso, MI 48867

Group practices

Medicare enrollment lists Ronald H. Kawauchi as a member of this group (CMS data updated October 2, 2026).

  • Memorial Hospital214 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Michigan →

Other hematologist-oncologists in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All hematologist-oncologists in Michigan →

Other clinicians in Memorial Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolState University Of New York At Buffalo School Of Medicine
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275625147
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians