Doctor profile · Federal record

Dr. Thomas Gann, MD

Neurology Physician (CMS: Neurology) · Neurology Physician · Neurology Physician · Neurology Physician · Greenville, SC

  • NPI 1538377205
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 4 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
200 Patewood Dr Ste B350
Greenville, SC 296156337
(864) 454-4500
fax (864) 454-4505
Additional location
1514 Jefferson Hwy
New Orleans, LA 701212429
(504) 842-4000
Mailing address
300 E McBee Ave Fl 4
Greenville, SC 296012842

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
July 7, 2023
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State licenses (4)
South Carolina #89487 · Alabama #27071 · North Carolina #2009-01588 · Louisiana #MD.205797
Medicaid (3)
MS #04328896 · LA #2313967 · SC #PENDING

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538377205. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
225
Distinct HCPCS
10
Medicare allowed
$30,988
HCPCS Description Services Patients Avg allowed
95816 Measurement of brain wave activity (eeg), awake and drowsy 47 46 $53
99215 Established patient office or other outpatient visit, 40-54 minutes 42 41 $154
95720 Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional 24 16 $194
99214 Established patient office or other outpatient visit, 30-39 minutes 18 17 $105
99215 Established patient office or other outpatient visit, 40-54 minutes 15 13 $138
99483 Assessment of and care planning for patient with impaired thought processing, typically 60 minutes 15 15 $187
95816 Measurement of brain wave activity (eeg), awake and drowsy 14 14 $327
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $146
99213 Established patient office or other outpatient visit, 20-29 minutes 14 14 $64
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $94

In context: peer comparison

Among 17 peers in Greenville Neurology Physician, average services per provider: 255. This provider delivers 0.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,019
Patients
243
Total drug cost
$127,043
Drug Type Claims Patients Total cost
Levetiracetam Generic 184 55 $9,508
Donepezil Hcl Generic 143 49 $2,740
Lacosamide Generic 126 44 $13,838
Gabapentin Generic 104 20 $2,168
Lamotrigine Generic 88 26 $1,932
Memantine Hcl Generic 88 23 $1,860
Clobazam Generic 73 14 $45,771
Topiramate Generic 46 12 $1,303
Galantamine Hbr Generic 38 0 $3,029
Divalproex Sodium Generic 27 0 $1,451

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Gann's medical specialty?
Dr. Thomas Gann practices Neurology Physician in Greenville, SC.
Where does Dr. Thomas Gann practice?
Dr. Thomas Gann practices at 200 Patewood Dr Ste B350, Greenville, SC 296156337. Office phone: 8644544500.
What is Dr. Thomas Gann's NPI?
Dr. Thomas Gann's National Provider Identifier (NPI) is 1538377205, issued by NPPES.
Does Dr. Thomas Gann accept Medicare assignment?
Yes. Dr. Thomas Gann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Gann commonly perform?
Top Medicare-reported procedures in 2023: Measurement of brain wave activity (eeg), awake and drowsy (HCPCS 95816); Established patient office or other outpatient visit (HCPCS 99215); Measurement of brain wave activity with video (veeg) (HCPCS 95720). Source: CMS Medicare Physician & Other Practitioners file.