Dr. James A. Underwood
- Gender: Male
- Experience: 27 years
- Graduated from: University Of Mississippi School Of Medicine
- Graduation year: 1994
- Sole propriator: No
- NPI: 1447240494
Dr. James A. Underwood
Gastroenterologist
He is located at 2510 Lakeland Drive in Flowood, MS 39232. Can help patients with the following: Bleeding Varices, Chest Pain, General Care, Heart Disease, Hiatal Hernia, Irritable Bowel Syndrome (IBS). His National Provider Identifier (NPI) number is 1447240494. Appointment can be made via the phone number (601) 355-1234. He is affiliated with 2 practices and 3 hospitals.
Conditions treated
Dr. James A. Underwood, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. James A. Underwood.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. James A. Underwood
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. James A. Underwood as in-network for the following 2026 plans.
Health plans
Cigna Healthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 10 plans from Cigna Healthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Connect Bronze 6500 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze 8500 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze CMS Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Gold CMS Standard | EPO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect myDiabetesCare Silver | EPO · Silver | Preferred | Accepting new patients |
| Connect myHeartCare Silver | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver 4000 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver 6500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver CMS Standard | EPO · Silver | Preferred | Accepting new patients |
Oscar Health Plan, Inc.
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 7 plans from Oscar Health Plan, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic Standard | HMO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Bronze Elite + PCP Saver Plus | HMO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Bronze Simple Chronic Care CKM | HMO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Gold Classic Standard | HMO · Gold | Preferred | Accepting new patients at some locations |
| Silver Classic Standard | HMO · Silver | Preferred | Accepting new patients at some locations |
| Silver Simple | HMO · Silver | Preferred | Accepting new patients at some locations |
| Silver Simple Chronic Care CKM | HMO · Silver | Preferred | Accepting new patients at some locations |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 15 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard+ (Dental + Vision, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus + $0 Indiv Med Ded ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Value ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Value + ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage + ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. James A. Underwood is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. James A. Underwood is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Gastrointestinal Associates Pa
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| AbbVie | $683 |
| Ironwood Pharmaceuticals | $380 |
| Janssen | $179 |
Other
| Food and Beverage | $2336 |
Studies
UNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated in 1994Other ways to reach out
- Facebook: https://www.facebook.com/pages/James-A-Underwood-Jr-MD/217561092366083
Additional Specialities
- Internist
Affiliated hospitals
Looking for more Gastroenterologists?
Out of the 19 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Female
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Female
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Female
- Address: 1200 North State Street Suite 270 Jackson, 39202, MS
- Gender: Male
- Address: 100 Baptist Memorial Circle Suite 204 Oxford, 38655, MS
- Gender: Male
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Male
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Male
- Address: 2510 Lakeland Drive Flowood, 39232, MS
- Gender: Female
- Address: 2510 Lakeland Drive Flowood, 39232, MS
Questions & Answers
Does Dr. James A. Underwood have affiliation with practices?
Dr. James A. Underwood is affiliated with Baptist Medical Clinics. For the full list of practices see this list.
Where can you meet with Dr. James A. Underwood?
Dr. James A. Underwood's office is located at 2510 Lakeland Drive in Flowood, MS 39232.
What conditions does Dr. James A. Underwood treat?
Dr. James A. Underwood provides treatment for Bleeding Varices, Chest Pain, General Care, Heart Disease, Hiatal Hernia, Irritable Bowel Syndrome (IBS). For the full list see this list.
Does Dr. James A. Underwood accept patients with Oscar Health Plan, Inc.?
Yes, Dr. James A. Underwood is listed in-network for Oscar Health Plan, Inc. through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. James A. Underwood affiliation with hospitals?
Dr. James A. Underwood is affiliated with MISSISSIPPI BAPTIST MEDICAL CENTER. For the full list of hospitals see this list.