Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Oscar A Lewis, CRNA

Q: What is the NPI number for Oscar Lewis?

The National Provider Identifier (NPI) for Oscar Lewis is 1881660033, a Type 1 (individual) record in the CMS NPPES registry.

Certified Registered Nurse Anesthetist in Chattanooga, TN · enumerated 2006.

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

National Provider Identifier

1881660033

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Oscar A Lewis

Credential CRNA

Sex Male

Practice address 975 E. Third Street, Chattanooga, TN, 37403

Phone (423) 778-7608

Fax (423) 778-2360

Enumeration date Feb 27, 2006

Last updated in NPPES Apr 30, 2010

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN107152 (TN) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License APN11239 (TN) Primary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RN127955 (GA) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
8053405	Medicaid	NC	-
1512182	Medicaid	TN	-
3634675	Medicaid	TN	-
109573	Medicaid	AL	-
P00785186	Other	TN	RAILROAD MEDICARE
177060840A	Medicaid	GA	-
4216397	Other	TN	BLUE CROSS BLUE SHIELD OF TN

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 Oscar Lewis practice?

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

What is the NPI number for Oscar Lewis?

The National Provider Identifier (NPI) for Oscar Lewis is 1881660033, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-30.