Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ishimaru Medical Services LLC

Family Medicine Physician in Chester, WV · enumerated 2022 · authorized official Richard Diamond, Medical Director.

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

National Provider Identifier

1487399887

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Registry record

Entity type Organization (Type 2)

Legal business name Ishimaru Medical Services LLC

Practice address 507 Carolina Ave, Chester, WV, 26034

Phone (304) 224-3583

Fax (304) 459-5050

Enumeration date Apr 29, 2022

Last updated in NPPES Sep 28, 2022

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Richard Diamond

Title Medical Director

Phone (724) 851-5312

Other identifiers

Identifier	Type	State	Issuer
1700353539	Other	-	NPI

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-09-28. Verify at npiregistry.cms.hhs.gov.

Where is Ishimaru Medical Services LLC located?

The practice location on file with NPPES is in Chester, WV.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-28.