JOSHUA DAVID MIXSON M.D.
NPI 1184249716
Internal Medicine - Geriatric Medicine in Charleston, SC

Q: What is Joshua Mixson's NPI number?

The NPI number for Joshua Mixson is 1184249716. It was assigned to this individual provider in the NPPES registry on June 9, 2020.

Q: What is Joshua Mixson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Joshua Mixson was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 09, 2020PECOS EnrolledAccepts Medicare Assignment

171 ASHLEY AVE, CHARLESTON, SC 29425(843) 792-1414 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 23, 2026, Jul 18, 2024, Jun 9, 2020 (3 updates tracked since 2020).

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About Joshua David Mixson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSHUA DAVID MIXSON M.D. (NPI 1184249716) is an individual geriatric medicine provider in Charleston, South Carolina, licensed in South Carolina (84282) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and is a graduate of Medical University Of South Carolina College Of Medicine (2020).

NPPES Registry Identity

NPI1184249716

Entity TypeIndividualMale

Primary Taxonomy207RG0300X

Provider Legal NameJOSHUA DAVID MIXSONCredential: M.D.

Location Address171 ASHLEY AVECharleston, SC 29425-8908

Mailing AddressPo Box 751461Charlotte, NC 28275-1461

Phone(843) 792-1414

Sole ProprietorNo

Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 2020

Enumeration DateJune 9, 2020

Last NPPES UpdateJuly 23, 20263 updates tracked since enumeration

NPPES CertifiedJuly 23, 2026

✔ NPI 1184249716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in SC · 84282

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Also ListedInternal MedicineTaxonomy 207R00000X · License 84282 (SC)

171 ASHLEY AVE, Charleston, SC 29425

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joshua David Mixson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860811478

PECOS Enrollment IDI20240528000503

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Joshua Mixson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Medical Associates Of The Medical University Of South Carol

Same address

Obstetrics & Gynecology

171 ASHLEY AVE
Charleston, SC 29425

Reassigned Medicare billing, South Carolina enrollment
2,594 clinicians in this Medicare group

NPI 1013934629 (843) 792-1414

24 On Physicians Of Sc, LLC

0.2 mi

Hospitalist

316 CALHOUN ST
Charleston, SC 29401

Reassigned Medicare billing, South Carolina enrollment
281 clinicians in this Medicare group

NPI 1144877655 (800) 923-2247

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

107 services54 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

99 services80 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

48 services45 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

16 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Musc Medical Center

Acute Care Hospitals · Charleston, SC

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number420004

Location169 Ashley AveCharleston, SC 29425 · Charleston County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29425 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$163.84 typical visit price

range $53.57 – $163.84

Typical copayment $40.96 (range $13.39 – $40.96)

Most-billed visit code 99205

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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