Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charles W. Mason, D.O., Geriatric Medicine

Geriatric Medicine (Family Medicine) Physician in Powell, OH · enumerated 2006 · authorized official Charles Mason, President.

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

National Provider Identifier

1386749307

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Registry record

Entity type Organization (Type 2)

Legal business name Charles W. Mason, D.O., Geriatric Medicine

Practice address 8530 Northbluff Ln, Powell, OH, 43065

Phone (740) 881-9190

Enumeration date Sep 14, 2006

Last updated in NPPES Sep 20, 2007

Taxonomy & classification

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Charles Mason

Title President

Phone (740) 881-9190

Other identifiers

Identifier	Type	State	Issuer
0198610	Medicaid	OH	-

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 type of organization is Charles W. Mason, D.O., Geriatric Medicine?

Charles W. Mason, D.O., Geriatric Medicine is registered in NPPES as a Geriatric Medicine (Family Medicine) Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Charles Mason Geriatric Medicine (Family Medicine) Physician · Powell, OH NPI 1427027770

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-20.