Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Johnny C. Weeks Iii, MD

Works at hospitals in Charleston, SC · Mount Pleasant, SC · Summerville, SC · South Carolina

Summary

Johnny C. Weeks Iii, MD (Family Practice) is listed by Medicare at 5 hospitals in Charleston, SC, Mount Pleasant, SC and Summerville, SC. NPI 1477685949. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Johnny C. Weeks Iii, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
34Years since medical school (graduated 1992)
University Of North Carolina At Chapel Hill School Of MedicineMedical school
MaleGender (as listed)
Roper Saint Francis Physicians NetworkGroup practice

Quick answers

Which hospitals does Johnny C. Weeks Iii work at?
Medicare's official clinician data lists Johnny C. Weeks Iii at 5 hospitals: Bon Secours-St Francis Xavier Hospital, Mount Pleasant Hospital, Roper Hospital, Roper St Francis Hospital-Berkeley Inc and Trident Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Johnny C. Weeks Iii see patients?
Medicare's clinician data lists 1 practice location in N Charleston, SC. Call before your visit to confirm the address.
What is Johnny C. Weeks Iii's specialty?
Medicare lists Family Practice as the primary specialty.
Does Johnny C. Weeks Iii accept Medicare assignment?
Yes. Medicare's clinician data says Johnny C. Weeks Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Johnny C. Weeks Iii offer telehealth?
Medicare's clinician data says Johnny C. Weeks Iii offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Johnny C. Weeks Iii?
(843) 789-1800, as listed in official Medicare / NPI Registry data.
What is Johnny C. Weeks Iii's NPI number?
1477685949. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Johnny C. Weeks Iii works

Medicare's Facility Affiliation Data lists Johnny C. Weeks Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Johnny C. Weeks Iii is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Johnny C. Weeks Iii as a member of this group (CMS data updated 2026-10-02).

  • Roper Saint Francis Physicians Network528 clinicians in the group

Specialties

Find other Family Practice doctors in South Carolina →

Other family doctors in N Charleston

Clinicians with the same Medicare primary specialty in N Charleston, SC — not a recommendation.

All family doctors in N Charleston →

Clinician information

CredentialMD
Medical schoolUniversity Of North Carolina At Chapel Hill School Of Medicine
Graduation year1992
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1477685949
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians