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Geriatric Medicine

Joshua Mixson, MD

Works at hospitals in Charleston, SC · South Carolina

Summary

Dr. Joshua Mixson, MD is a geriatrician at 171 Ashley Ave, Charleston, SC 29425. Phone: (843) 792-1414. Accepts Medicare assignment. In 2024, Joshua Mixson had 179 Original Medicare patients and 409 services. NPI 1184249716. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Geriatrician (Medicare lists Geriatric Medicine)
  • Address: 171 Ashley Ave, Charleston, SC 29425 · Directions
  • Phone: (843) 792‑1414
  • Medicare: Accepts Medicare assignment
  • Hospital: MUSC Medical Center
  • Group practice: University Medical Associates of the Medical University of South Carol
  • Medical school: Medical University Of South Carolina College Of Medicine · graduated 2020 (6 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Joshua Mixson, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Joshua Mixson accept Medicare assignment?
Yes. Medicare's clinician data says Joshua Mixson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Joshua Mixson see?
In 2024, CMS data shows 179 Original Medicare patients and 409 services for Joshua Mixson. This counts Original Medicare only and measures volume, not quality.
What is Joshua Mixson's NPI number?
1184249716. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Joshua Mixson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients179
Services billed to Medicare409
Different services or procedures13
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)107 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)99 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)97 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)48 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)16 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis57%
  • Atrial fibrillation40%
  • Depression36%
  • Chronic kidney disease34%

Hospitals where Joshua Mixson works

Medicare's Facility Affiliation Data lists Joshua Mixson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • MUSC Medical CenterCharleston, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420004

Practice locations

Addresses where Joshua Mixson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Joshua Mixson as a member of this group (CMS data updated October 2, 2026).

  • University Medical Associates of the Medical University of South Carol1,668 clinicians in the group

Specialties

Find other Geriatric Medicine doctors in South Carolina →

Other geriatricians in South Carolina

Clinicians with the same Medicare primary specialty in South Carolina — not a recommendation.

All geriatricians in South Carolina →

Other clinicians in University Medical Associates of the Medical University of South Carol

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolMedical University Of South Carolina College Of Medicine
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1184249716
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians