NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Southwestern Neurosurgery Physicians LLC

Neurological Surgery Physician in Lawton, OK · enumerated 2006 · authorized official Jon O'Shaughnessy, Ceo.

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

National Provider Identifier

1477595924

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Southwestern Neurosurgery Physicians LLC
Other name <Unavail>
Practice address 5604 Sw Lee Blvd, Suite 357, Lawton, OK, 73505
Phone (580) 531-4600
Fax (580) 531-6405
Enumeration date Jun 11, 2006
Last updated in NPPES Aug 23, 2008

Taxonomy & classification

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 23774 (OK) Primary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 26013 (OK) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25895 (OK) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25956 (OK) Secondary

Authorized official

Name Jon O'Shaughnessy
Title Ceo
Phone (580) 531-4600

Other identifiers

Identifier Type State Issuer
200051010A Medicaid OK -
200199360A Medicaid OK -
200035200A Medicaid OK -

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 the NPI number for Southwestern Neurosurgery Physicians LLC?
The NPI for Southwestern Neurosurgery Physicians LLC is 1477595924, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Southwestern Neurosurgery Physicians LLC?
NPPES lists Jon O'Shaughnessy (Ceo) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-23.