NPPES file of Aug 9, 2026

Joshua David Mixson, M.D.

Geriatric Medicine (Internal Medicine) Physician · Charleston, SC

Joshua David Mixson, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Charleston, South Carolina, and NPI 1184249716, issued on Jun 9, 2020. Check the license (South Carolina 84282, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184249716
Name
Joshua David Mixson
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
84282 SC
Self-reported in NPPES; status is on the state search
Practice location
171 Ashley Ave, Charleston, SC 29425
Phone
(843) 792-1414
Enumerated
Jun 9, 2020
Record last updated
Jul 23, 2026
Medicare enrollment
Enrolled (PECOS I20240528000503); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2020
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest geriatric medicine (internal medicine) physician records → All 38 in South Carolina → Look up another NPI →

Also registered at 171 Ashley Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrea Abbott, MDSurgical Oncology Physician1245473354
  2. Miguel Abboud, MDPediatric Hematology & Oncology Physician1619292851
  3. Ahmed Abdelkader, MD, PHDNephrology Physician1629743000
  4. Mohamed Abdelwahab, MDOtolaryngology Physician1528679768
  5. Anne Abel, MDChild Abuse Pediatrics Physician1043328990
  6. Christina Abrams, M.D.Pediatric Hematology & Oncology Physician1376920207

Verify Joshua David Mixson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 84282    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

819 Medicare Part D claims for 115 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Joshua Mixson819
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium57 claims
  2. Amlodipine Besylate50 claims
  3. Levothyroxine Sodium46 claims
  4. Losartan Potassium38 claims
  5. Furosemide31 claims
  6. Gabapentin25 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University Medical Associates OF The Medical University OF South CarolCharleston, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joshua David Mixson among 38 geriatric medicine (internal medicine) physician records in South Carolina

Joshua David Mixson, M.D. is one of 38 geriatric medicine (internal medicine) physician records with a practice address in South Carolina. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.

  • NPI issued2020 · 87% of these records are older, 5% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2020 · median 1996 among the 22 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in South Carolina

There are 38 geriatric medicine (internal medicine) physician records in South Carolina.

All 38 in South Carolina → Every provider in Charleston → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Kelly Graves, M.D.Charleston, SC 294251417480245
  2. Mark Newbrough, M.D.Charleston, SC 294251548369473
  3. Sarah Subhi, DOCharleston, SC 294251427753995
  4. Dolores Tetreault, MDCharleston, SC 294071639115066
  5. Peter Maung, MD, FACP, CMDCharleston, SC 294061740219922
  6. Simon Scalia, MDGoose Creek, SC 294451962482141
  7. John Franklin, MDCharleston, SC 294011073583167
  8. Hans Hinson, MDCharleston, SC 294011730285842

Common questions

What is Joshua David Mixson, M.D.'s NPI number?

Joshua David Mixson, M.D.'s National Provider Identifier (NPI) is 1184249716, issued on Jun 9, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Joshua David Mixson, M.D. located?

The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.

How can I verify Joshua David Mixson, M.D.'s license?

NPPES lists South Carolina license number 84282, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joshua David Mixson, M.D. prescribe under Medicare Part D?

In 2024, Joshua David Mixson, M.D. had 819 Medicare Part D claims for 115 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.