Andrea Nguyen, MD
Internal Medicine Physician · Charleston, SC
Andrea Nguyen, MD is an internal medicine physician with a practice address in Charleston, South Carolina, and NPI 1811524929, issued on Mar 26, 2020. Check the license (South Carolina 91953, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Andrea Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 91953 SC
A203115 CA
Self-reported in NPPES; status is on the state search - Practice location
- 316 Calhoun St, Charleston, SC 29401
- Phone
- (843) 724-2000
- Enumerated
- Mar 26, 2020
- Record last updated
- Jan 14, 2026
- Medicare enrollment
- Enrolled (PECOS I20260128002750); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 316 Calhoun St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Taylor AdamPhysician Assistant1902576929
- Mary Ann Adiong, RNRegistered Nurse1396694287
- Elizabeth Alvarez, NPCritical Care Medicine Nurse Practitioner1295288421
- Andrew Anderson, M.D.Diagnostic Radiology Physician1073729711
- Selena Anderson, FNPFamily Nurse Practitioner1346737673
- Claire Andrew, MS, RDRegistered Dietitian1134970049
Verify Andrea Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 91953Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
99 Medicare Part D claims for 42 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefdinir12 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.
Industry payments in 2024: $115.02
1 payment: food and beverage; the largest payer was Alexion Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- 24 ON Physicians OF SC LLCCharleston, SC
- Galen Inpatient Physicians PCFresno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea Nguyen among 1,881 internal medicine physician records in South Carolina
Andrea Nguyen, MD is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% 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 74% of them.
- NPI issued2020 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2006 among the 1,119 with a school on file
- Record last updated2026 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
427 internal medicine physician records list a practice address in Charleston
They are 427 of the 10,840 NPPES records with a practice address in Charleston, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Charleston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mary Lou Applebaum, MDCharleston, SC 294011457322042
- Athena Beldecos, MDCharleston, SC 294011568428639
- Courtney Brady, MDCharleston, SC 294011316055270
- John Bride, MDCharleston, SC 294011801864764
- Jeanne Campbell, MD PHDCharleston, SC 294011598718678
- Scott Davidson, MDCharleston, SC 294011386611861
- Jeffery GrimesCharleston, SC 294011194790881
- Kwame Iwegbue, MDCharleston, SC 294011255331054
Common questions
What is Andrea Nguyen, MD's NPI number?
Andrea Nguyen, MD's National Provider Identifier (NPI) is 1811524929, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Andrea Nguyen, MD located?
The NPPES record lists a practice address at 316 Calhoun St, Charleston, SC, 29401. Phone: (843) 724-2000. Providers update this record themselves, so call before visiting.
How can I verify Andrea Nguyen, MD's license?
NPPES lists South Carolina license number 91953, 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 Andrea Nguyen, MD prescribe under Medicare Part D?
In 2024, Andrea Nguyen, MD had 99 Medicare Part D claims for 42 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.
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.