Doctor profile · Federal record

Dr. Heather Simpson, M.D.

Transplant Hepatology Physician (CMS: Gastroenterology) · Student in an Organized Health Care Education/Training Program · Internal Medicine Physician · Transplant Hepatology Physician · Charleston, SC

  • NPI 1316069420
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 3 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
171 Ashley Ave
Charleston, SC 294258908
(843) 792-1414
Mailing address
Po Box 751461
Charlotte, NC 282751461

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
February 24, 2017
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RT0003X — NUCC code
State licenses (3)
South Carolina #31697 · Michigan #4301085793 · Colorado #46623

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1316069420. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
274
Distinct HCPCS
7
Medicare allowed
$29,529
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 83 73 $91
99214 Established patient office or other outpatient visit, 30-39 minutes 54 43 $117
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 41 23 $75
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 39 19 $113
99215 Established patient office or other outpatient visit, 40-54 minutes 29 23 $136
99215 Established patient office or other outpatient visit, 40-54 minutes 17 14 $166
99204 New patient office or other outpatient visit, 45-59 minutes 11 11 $126

In context: peer comparison

Among 3 peers in Charleston Transplant Hepatology Physician, average services per provider: 47. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,024
Patients
293
Total drug cost
$851,302
Drug Type Claims Patients Total cost
Xifaxan (Rifaximin) Brand 194 36 $716,188
Spironolactone Generic 128 46 $4,531
Furosemide Generic 111 47 $791
Tacrolimus Generic 110 26 $26,833
Ursodiol Generic 98 25 $20,568
Mycophenolate Mofetil Generic 82 22 $31,054
Nadolol Generic 62 18 $4,680
Lactulose Generic 42 23 $2,489
Pantoprazole Sodium Generic 34 16 $680
Prednisone Generic 30 12 $397

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Heather Simpson's medical specialty?
Dr. Heather Simpson practices Transplant Hepatology Physician in Charleston, SC.
Where does Dr. Heather Simpson practice?
Dr. Heather Simpson practices at 171 Ashley Ave, Charleston, SC 294258908. Office phone: 8437921414.
What is Dr. Heather Simpson's NPI?
Dr. Heather Simpson's National Provider Identifier (NPI) is 1316069420, issued by NPPES.
Does Dr. Heather Simpson accept Medicare assignment?
Yes. Dr. Heather Simpson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Heather Simpson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.