Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory A O'Neal, CRNA

Certified Registered Nurse Anesthetist in Springfield, MO · enumerated 2006.

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

National Provider Identifier

1679533657

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Registry record

Entity type Individual (Type 1)

Name Gregory A O'Neal

Credential CRNA

Sex Male

Practice address 1235 E Cherokee St, Springfield, MO, 65804

Phone (417) 820-6863

Enumeration date Mar 24, 2006

Last updated in NPPES Jun 27, 2019

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 209002951 (IL) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 2018015163 (MO) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
041299335	Other	IL	RN LICENSE
050151	Other	-	CCNA CERTIFICATION

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

Where does Gregory O'Neal practice?

The practice location on file with NPPES is in Springfield, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory O'Neal?

The National Provider Identifier (NPI) for Gregory O'Neal is 1679533657, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-27.