Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charles C Greene, MD, Phd

Q: What type of organization is Charles C Greene, MD, Phd?

Charles C Greene, MD, Phd is registered in NPPES as a Otolaryngology Physician (its primary provider taxonomy).

Otolaryngology Physician in Jacksonville, FL · enumerated 2013 · authorized official Charles Greene, Owner.

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

National Provider Identifier

1235576091

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Registry record

Entity type Organization (Type 2)

Legal business name Charles C Greene, MD, Phd

Other name <Unavail>

Practice address 4131 University Blvd S, Building 18, Jacksonville, FL, 32216

Phone (904) 419-2054

Enumeration date Jun 3, 2013

Last updated in NPPES Jun 3, 2013

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Charles Greene

Title Owner

Phone (904) 419-2054

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 C Greene, MD, Phd?

Charles C Greene, MD, Phd is registered in NPPES as a Otolaryngology 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-03.