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General Surgery

Michael M. Maruyama, MD

Works at hospitals in Clovis, CA · Fresno, CA · California

Summary

Michael M. Maruyama, MD (General Surgery) is listed by Medicare at 2 hospitals in Clovis, CA and Fresno, CA. NPI 1649354408. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael M. Maruyama, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

General SurgeryPrimary specialty
YesAccepts Medicare assignment
51Years since medical school (graduated 1975)
MaleGender (as listed)
Community Health PartnersGroup practice

Quick answers

Which hospitals does Michael M. Maruyama work at?
Medicare's official clinician data lists Michael M. Maruyama at 2 hospitals: Clovis Community Medical Center and Community Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael M. Maruyama see patients?
Medicare's clinician data lists 4 practice locations, including Clovis, CA and Fresno, CA. Call before your visit to confirm the address.
What is Michael M. Maruyama's specialty?
Medicare lists General Surgery as the primary specialty.
Does Michael M. Maruyama accept Medicare assignment?
Yes. Medicare's clinician data says Michael M. Maruyama accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Michael M. Maruyama?
(559) 324-4000, as listed in official Medicare / NPI Registry data.
What is Michael M. Maruyama's NPI number?
1649354408. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael M. Maruyama works

Medicare's Facility Affiliation Data lists Michael M. Maruyama at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael M. Maruyama is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael M. Maruyama as a member of this group (CMS data updated 2026-10-02).

  • Community Health Partners504 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Clovis

Clinicians with the same Medicare primary specialty in Clovis, CA — not a recommendation.

All general surgeons in Clovis →

Clinician information

CredentialMD
Graduation year1975
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649354408
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians