Doctor profile · Federal record

Dr. Brett van Leer-Greenberg, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Summerville, SC

  • NPI 1871911867
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
5500 Front St # 260
Summerville, SC 294867735
(843) 376-0670
fax (843) 376-0669
Additional location
7 S Alliance Dr Ste 202A
Goose Creek, SC 294457269
Additional location
9313 Medical Plaza Dr Ste 202
Charleston, SC 294069176
(843) 572-1200
Show 1 more location
Additional location
1364 Clifton RD Ne
Atlanta, GA 303221059
(404) 727-5658
Mailing address
Po Box 530062
Atlanta, GA 303530062

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
March 20, 2024
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
South Carolina #83995
Medicaid
SC #839953

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871911867. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,507
Distinct HCPCS
10
Medicare allowed
$164,584
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 434 387 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 209 131 $120
45380 Biopsy of large bowel using a flexible endoscope 187 187 $93
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 180 179 $224
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 178 173 $94
99213 Established patient office or other outpatient visit, 20-29 minutes 68 59 $85
99204 New patient office or other outpatient visit, 45-59 minutes 43 43 $159
45390 Removal of large bowel tissue using a flexible endoscope 34 34 $308
99215 Established patient office or other outpatient visit, 40-54 minutes 25 18 $171
91110 Imaging of digestive tract done from the inside of the digestive tract 24 23 $695

In context: peer comparison

Among 3 peers in this city , average services per provider: 74. This provider delivers 20× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$26,787
Transactions
47
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Phathom Pharmaceuticals, Inc. 25 $18,933.43
GENZYME CORPORATION 9 $7,471.91
Regeneron Healthcare Solutions, Inc. 1 $149.58
PFIZER INC. 3 $62.87
ABBVIE INC. 3 $56.95
Axonics, Inc. 2 $30.45
Salix Pharmaceuticals, a division of Bausch Health US, LLC 2 $29.83
Ferring Pharmaceuticals Inc. 1 $26.56
Daiichi Sankyo Inc. 1 $25.15

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$16,800
Consulting Fee
$6,936
Food and Beverage
$1,932
Travel and Lodging
$1,119

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
216
Patients
107
Total drug cost
$9,539
Drug Type Claims Patients Total cost
Omeprazole Generic 109 61 $2,651
Pantoprazole Sodium Generic 50 28 $908
Famotidine Generic 25 18 $294
Ursodiol Generic 19 0 $5,535
Ondansetron Hcl Generic 13 0 $152

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett van Leer-Greenberg's medical specialty?
Dr. Brett van Leer-Greenberg practices Gastroenterology Physician in Summerville, SC.
Where does Dr. Brett van Leer-Greenberg practice?
Dr. Brett van Leer-Greenberg practices at 5500 Front St # 260, Summerville, SC 294867735. Office phone: 8433760670.
What is Dr. Brett van Leer-Greenberg's NPI?
Dr. Brett van Leer-Greenberg's National Provider Identifier (NPI) is 1871911867, issued by NPPES.
Does Dr. Brett van Leer-Greenberg accept Medicare assignment?
Yes. Dr. Brett van Leer-Greenberg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brett van Leer-Greenberg commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.