Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory C. Mathews, MD, LLC

Q: What type of organization is Gregory C. Mathews, MD, LLC?

Gregory C. Mathews, MD, LLC is registered in NPPES as a Neurology Physician (its primary provider taxonomy).

Neurology Physician in Silver Spring, MD · enumerated 2015 · authorized official Gregory Mathews, Owner/Physician.

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

National Provider Identifier

1881088136

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory C. Mathews, MD, LLC

Practice address 1400 Forest Glen Rd, Suite 225, Silver Spring, MD, 20910

Phone (301) 456-5810

Fax (301) 299-4203

Enumeration date Mar 25, 2015

Last updated in NPPES Sep 30, 2015

Taxonomy & classification

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License D56963 (MD) Primary

Authorized official

Name Gregory Mathews

Title Owner/Physician

Phone (301) 461-5111

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 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.

What type of organization is Gregory C. Mathews, MD, LLC?

Gregory C. Mathews, MD, LLC is registered in NPPES as a Neurology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-30.