John Brennan, MD
NPI 1891378345 belongs to John Brennan, MD, a molecular genetic pathology (pathology) physician with a practice location in Charleston, SC. The NPI was issued on May 3, 2021, and the record was last updated in NPPES on September 9, 2026. The record lists 3 taxonomy codes. 2 additional practice locations are listed.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Molecular Genetic Pathology (Pathology) Physician Primary | 207ZP0007X | 98066 (SC) |
| Molecular Genetic Pathology (Pathology) Physician | 207ZP0007X | 14211788-1205 (UT) |
| Student in an Organized Health Care Education/Training Program | 390200000X | 304865 (NC) |
Practice locations
Local context
Active NPPES records list 2 providers with molecular genetic pathology (pathology) physician as the primary taxonomy within 25 miles of this practice location's ZIP code.
The same primary taxonomy is listed by 3 in South Carolina and 193 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- Dr. John Francis Brennan
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
Building software? Fetch this NPI programmatically with the NPILayer Provider API.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://api.npilayer.com/v1/providers/1891378345"