NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Michio Maruyama, MD

Surgery Physician in Fresno, CA · enumerated 2006 · practices at Valley Surgical Specialists Medical Grp Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649354408

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael Michio Maruyama
Credential MD
Sex Male
Practice address 1125 East Spruce Avenue, Suite 101, Fresno, CA, 93720
Fax (559) 450-3903
Enumeration date Oct 25, 2006
Last updated in NPPES Feb 19, 2013

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G32834 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Michael Maruyama?
The National Provider Identifier (NPI) for Michael Maruyama is 1649354408, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Maruyama practice?
The practice location on file with NPPES is in Fresno, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-19.