Andrea Nguyen, MD
Internal Medicine · Charleston, SC
At a glance
316 Calhoun St, Charleston, SC 29401-1113
NPPES record updated Jan 14, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
316 Calhoun StCharleston, SC 29401-1113
Additional reported practice locations
2601 Ocean PkwyBrooklyn, NY 112357745
Phone: 7186163000
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2020
- CMS specialties
- Internal Medicine
Practice groups
Reported hospital affiliations
- Bon Secours-St Francis Xavier Hospital Charleston, SC
- Mount Pleasant Hospital Mount Pleasant, SC
- Roper Hospital Charleston, SC
- Roper St Francis Hospital-Berkeley Inc Summerville, SC
- Saint Agnes Medical Center Fresno, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine
- Taxonomy code
- 207R00000X
- Enumeration date
- Mar 26, 2020
- Record updated
- Jan 14, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207R00000X · Primary
License reported: 91953 SC
207R00000X
License reported: A203115 CA
390200000X
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
316 Calhoun StCharleston, SC 29401-1113
- Phone
- (843) 724-2000
Mailing address
316 CALHOUN STCHARLESTON, SC 294011113
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue