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JOSEPH WILLIAM MASON MD
NPI 1891584447
Surgery in Charleston, SC

Active since May 01, 2025PECOS Enrolled
169 ASHLEY AVE ROOM 202 MAIN HOSPITAL, MSC 333, CHARLESTON, SC 29425(843) 792-4607 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Joseph William Mason Md NPPES

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

JOSEPH WILLIAM MASON MD (NPI 1891584447) is an individual surgery provider in Charleston, South Carolina, licensed in South Carolina (MMD.94986) and active in the NPI registry since May 2025. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891584447
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameJOSEPH WILLIAM MASONCredential: MD
Location Address169 ASHLEY AVE ROOM 202 MAIN HOSPITAL, MSC 333Charleston, SC 29425-8905
Mailing Address169 Ashley Ave Room 202 Main Hospital, Msc 333Charleston, SC 29425-8905
Phone(843) 792-4607
Sole ProprietorYes
Enumeration DateMay 1, 2025
Last NPPES UpdateJune 30, 2025
NPPES CertifiedJune 30, 2025
✔ NPI 1891584447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in SC · MMD.94986
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
169 ASHLEY AVE ROOM 202 MAIN HOSPITAL, Charleston, SC 29425
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph William Mason Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$67.12 typical visit price
range $16.96 – $133.52
Typical copayment $16.78 (range $4.24 – $33.38)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Mason's NPI number?

The NPI number for Joseph Mason is 1891584447. It was assigned to this individual provider in the NPPES registry on May 1, 2025.

Where is Joseph Mason located?

Joseph Mason practices at 169 Ashley Ave Room 202 Main Hospital Msc 333, Charleston, SC 29425. The listed phone number is (843) 792-4607.

What is Joseph Mason's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Joseph Mason enrolled in Medicare?

Yes. Joseph Mason is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joseph Mason was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.