Doctor profile · Federal record
Dr. James Underwood
Gastroenterology Physician (CMS: Gastroenterology) · Flowood, MS
- NPI 1447240494
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2510 Lakeland Dr
Flowood, MS 392329513
(601) 355-1234
fax (601) 326-3559
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- September 21, 2017
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Mississippi #15562
- Medicaid
- MS #00123762
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447240494. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,901
Distinct HCPCS
10
Medicare allowed
$271,220
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 1,485 | 132 | $43 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 846 | 132 | $57 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 185 | 181 | $230 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 174 | 171 | $61 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 155 | 30 | $42 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 152 | 29 | $44 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 111 | 102 | $128 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 92 | 92 | $166 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 87 | 79 | $115 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 85 | 83 | $147 |
In context: peer comparison
Among 14 peers in Flowood Gastroenterology Physician, average services per provider: 296. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$128
Transactions
5
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Celgene Corporation | 1 | $39.57 | |
| Takeda Pharmaceuticals U.S.A., INC. | 1 | $33.66 | |
| Ardelyx, INC. | 1 | $22.15 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $16.82 | |
| Merck Sharp & Dohme LLC | 1 | $16.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
804
Patients
424
Total drug cost
$41,544
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 259 | 81 | $3,685 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 88 | 88 | $13,500 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 88 | 87 | $1,652 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 86 | 84 | $2,149 |
| Dicyclomine Hcl | Generic | 42 | 17 | $1,337 |
| Famotidine | Generic | 38 | 11 | $333 |
| Pantoprazole Sodium | Generic | 38 | 17 | $1,104 |
| Ondansetron Odt (Ondansetron) | Brand | 31 | 0 | $633 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 24 | 24 | $440 |
| Ondansetron Hcl | Generic | 23 | 0 | $362 |
Hospital affiliations
Frequently asked questions
What is Dr. James Underwood's medical specialty?
Dr. James Underwood practices Gastroenterology Physician in Flowood, MS.
Where does Dr. James Underwood practice?
Dr. James Underwood practices at 2510 Lakeland Dr, Flowood, MS 392329513. Office phone: 6013551234.
What is Dr. James Underwood's NPI?
Dr. James Underwood's National Provider Identifier (NPI) is 1447240494, issued by NPPES.
Does Dr. James Underwood accept Medicare assignment?
Yes. Dr. James Underwood accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Underwood commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439); Chronic care management services (HCPCS 99490); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.