ADAM JIA-XIANG CHANG
NPI 1699478800
Internal Medicine in Charleston, SC

Q: What is Adam Chang's NPI number?

The NPI number for Adam Chang is 1699478800. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Q: What is Adam Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Adam Chang was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 March 24, 2023PECOS EnrolledAccepts Medicare Assignment

316 CALHOUN ST, CHARLESTON, SC 29401(843) 724-2450(843) 724-2455 Get Directions Write a Review

NPPES record last updated: June 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Adam Jia-xiang Chang NPPES

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

ADAM JIA-XIANG CHANG (NPI 1699478800) is an individual internal medicine provider in Charleston, South Carolina, licensed in South Carolina (96657) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Bon Secours-st Francis Xavier Hospital, and is a graduate of University Of Virginia School Of Medicine (2023).

NPPES Registry Identity

NPI1699478800

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameADAM JIA-XIANG CHANG

Location Address316 CALHOUN STCharleston, SC 29401-1125

Mailing Address300 Community Dr Ste 4dsuManhasset, NY 11030-3876 · (516) 562-0100

Phone(843) 724-2450

Fax(843) 724-2455

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2023

Enumeration DateMarch 24, 2023

Last NPPES UpdateJune 17, 2026

NPPES CertifiedJune 17, 2026

✔ NPI 1699478800 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in SC · 96657

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

316 CALHOUN ST, Charleston, SC 29401

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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

Adam Jia-xiang Chang 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 ID3476022823

PECOS Enrollment IDI20260515000535

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 Reassignment

Medicare enrollment records show Adam Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

24 On Physicians Of Sc, LLC

Same address

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.

Hospital Affiliations CMS Care Compare 2

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

Bon Secours-St Francis Xavier Hospital

Acute Care Hospitals · Charleston, SC

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420065

Location2095 Henry Tecklenburg DriveCharleston, SC 29414 · Charleston County

Emergency services Birthing friendly

Roper Hospital

Acute Care Hospitals · Charleston, SC

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420087

Location316 Calhoun StCharleston, SC 29401 · Charleston County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29401 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

$124.04 typical visit price

range $53.57 – $163.84

Typical copayment $31.01 (range $13.39 – $40.96)

Most-billed visit code 99204

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.

CHRISTIAN ANTON SUNG PA-C

Physician Assistant