Doctor profile · Federal record
Dr. Gregory Kwok, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Las Vegas, NV
- NPI 1952353997
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
6950 S Cimarron RD Ste 200
Las Vegas, NV 891132135
(702) 796-0231
fax (702) 796-5211 - Additional location
-
3820 S Hualapai Way, Suite 200
Las Vegas, NV 891475732 - Mailing address
-
Po Box 50794
Henderson, NV 890160794
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- September 21, 2018
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Nevada #7407
- Medicaid
- NV #2019569
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1952353997. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,642
Distinct HCPCS
10
Medicare allowed
$209,871
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 510 | 365 | $126 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 348 | 291 | $89 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 186 | 186 | $156 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 173 | 170 | $95 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 107 | 105 | $249 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 72 | 72 | $112 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 61 | 61 | $166 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 50 | 50 | $177 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 33 | 33 | $174 | |
43450 |
Dilation of esophagus | 26 | 26 | $40 |
In context: peer comparison
Among 19 peers in this city , average services per provider: 90. This provider delivers 18× the peer median.Open Payments
Industry payments received
All-time total
$642
Transactions
29
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 14 | $315.00 | |
| PFIZER INC. | 3 | $60.65 | |
| IRONWOOD PHARMACEUTICALS, INC | 2 | $41.57 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 2 | $36.44 | |
| Janssen Biotech, Inc. | 2 | $32.97 | |
| Gilead Sciences, Inc. | 1 | $32.74 | |
| Medtronic, Inc. | 1 | $30.98 | |
| Boston Scientific Corporation | 1 | $29.58 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $26.82 | |
| GENZYME CORPORATION | 1 | $19.42 | |
| Braintree Laboratories, Inc. | 1 | $15.73 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,088
Patients
370
Total drug cost
$336,652
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 375 | 149 | $5,588 |
| Famotidine | Generic | 248 | 82 | $4,378 |
| Omeprazole | Generic | 76 | 31 | $925 |
| Creon (Lipase/Protease/Amylase) | Brand | 61 | 12 | $233,707 |
| Ursodiol | Generic | 54 | 14 | $18,159 |
| Mesalamine | Generic | 51 | 13 | $38,487 |
| Esomeprazole Magnesium | Generic | 41 | 14 | $1,814 |
| Sucralfate | Generic | 38 | 14 | $1,248 |
| Colestipol Hcl | Generic | 31 | 12 | $5,725 |
| Dicyclomine Hcl | Generic | 28 | 14 | $1,204 |
Frequently asked questions
What is Dr. Gregory Kwok's medical specialty?
Dr. Gregory Kwok practices Gastroenterology Physician in Las Vegas, NV.
Where does Dr. Gregory Kwok practice?
Dr. Gregory Kwok practices at 6950 S Cimarron RD Ste 200, Las Vegas, NV 891132135. Office phone: 7027960231.
What is Dr. Gregory Kwok's NPI?
Dr. Gregory Kwok's National Provider Identifier (NPI) is 1952353997, issued by NPPES.
Does Dr. Gregory Kwok accept Medicare assignment?
Yes. Dr. Gregory Kwok accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Kwok 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 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.