Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. John Francis Brennan, MD

Individual provider Molecular Genetic Pathology (Pathology) Physician · NPI 1891378345

Dr. John Francis Brennan, MD is a Molecular Genetic Pathology (Pathology) Physician in Charleston, South Carolina. Works from 3 locations. Licensed in North Carolina, South Carolina and Utah.

Licensed in
NC, SC, UT
In the registry since
2021
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

171 Ashley Ave
Charleston, SC 29425-0100
Phone: (843) 792-1414
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 321 S Columbia St, Chapel Hill, NC 27514-4309 — (919) 966-4676
  • 15 N Medical Dr, Salt Lake City, UT 84112-1100 — (801) 581-2121

Specialties & licences

Molecular Genetic Pathology (Pathology) Physician (primary) Taxonomy 207ZP0007X · Licence 98066 (SC)
Molecular Genetic Pathology (Pathology) Physician Taxonomy 207ZP0007X · Licence 14211788-1205 (UT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 304865 (NC)

Record details

NPI number1891378345
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2021
Last updated in NPPESSeptember 9, 2026
Certification dateSeptember 9, 2026

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