John Terrill Main, DO

John Terrill Main is a Neurological Surgery Physician provider (Neurological Surgery) practicing in Ocala, FL, registered in the NPPES registry with NPI 1467405233 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1467405233
Entity type	Individual (Type 1)
Name	John Terrill Main
Credential	DO
Sex	Male
Practice address	Ocala, FL, 34471
Phone	3526291743
Fax	3526291748
Enumeration date	2006-05-19
Last updated in NPPES	2019-09-11

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207T00000X	Neurological Surgery Physician	Secondary	4163	OK
207T00000X	Neurological Surgery Physician	Primary	OS14853	FL

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Copy-ready billing details

Provider: John Main, DO
NPI: 1467405233
Taxonomy: 207T00000X (Neurological Surgery Physician)
Address: Ocala, FL, 34471

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1376603803	Iraj Nikfarjam	Individual	Neuroradiology Physician	Ocala, FL
1598253155	Keith Sauve	Individual	Acute Care Nurse Practitioner	Ocala, FL
1700583002	Luke Richmond	Individual	Physician Assistant	Ocala, FL

Verify this record

Cross-check NPI 1467405233 against the authoritative CMS record: view John Terrill Main on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is John Main?

John Main is registered in NPPES with the primary taxonomy of Neurological Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-09-11.