Dr. Howard R. Mertz
- Gender: Male
- Experience: 35 years
- Graduated from: Baylor College Of Medicine
- Graduation year: 1986
- Sole propriator: No
- NPI: 1649278474
Dr. Howard R. Mertz M.D.
Gastroenterologist
He is located at 4230 Harding Road Suite 309 Medical Plaza West in Nashville, TN 37205. Can help patients with the following: Autoimmune Hepatitis, Cirrhosis, Gastric Bypass Surgery, Hepatitis C (HCV), Pancreatic Cancer, Pancreatic Cysts. His National Provider Identifier (NPI) number is 1649278474. Appointment can be made via the phone number (615) 383-0165. He also has a website where you can get more information. The website can be found at https://healthcare.ascension.org/doctors/1649278474/howard-r-mertz-nashville-tn. He is affiliated with 6 practices and 1 hospitals.
Conditions treated
Dr. Howard R. Mertz, 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. Howard R. Mertz.
- Abdominal Pain
- Anemia
- Ascites
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Childhood Obesity
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Constipation
- Crohn's Disease
- Diarrhea
- Diverticulosis
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Nausea and Vomiting
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
Procedures Performed by Dr. Howard R. Mertz
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Howard R. Mertz as in-network for the following 2026 plans.
Health plans
Ambetter of Tennessee
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter of Tennessee
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Gold | EPO · Gold | Preferred | Accepting new patients |
| Elite Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options | EPO · Silver | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
BlueCross BlueShield of Tennessee
Network data as of Aug 25, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BlueCross B16S $50 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Expanded Bronze | Blue Network S | Accepting new patients |
| BlueCross G08S $30 PCP Copay + $0 virtual care from Teladoc Health ® (8 plan variants) | EPO · Gold | Blue Network S | Accepting new patients |
| BlueCross S26S $40 PCP Copay + $0 virtual care from Teladoc Health® (8 plan variants) | EPO · Silver | Blue Network S | Accepting new patients |
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 7500 Indiv Med Deductible | EPO · 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 1500 Indiv Med Deductible | EPO · Gold | 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 Silver 3000 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver 4500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver CMS Standard | EPO · Silver | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 16, 2026, as reported by the insurer.
Show all 12 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Copay Focus + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | EPO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage (Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage (Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus (Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · 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. Howard R. Mertz 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. Howard R. Mertz is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Advanced Diagnostic Imaging Pc
Based on Medicare's public enrollment records as of Jul 17, 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 | $2518 |
| Salix Pharmaceuticals a division of Bausch Health US LLC | $1939 |
| Forest Pharmaceuticals | $1494 |
Other
| Food and Beverage | $9215 |
| Consulting | $1500 |
| Promotional Speaking or Service | $1400 |
Studies
BAYLOR COLLEGE OF MEDICINE
Graduated in 1986Other ways to reach out
- Website: https://healthcare.ascension.org/doctors/1649278474/howard-r-mertz-nashville-tn
Affiliated practices
Looking for more Gastroenterologists?
There are 6 other gastroenterologists in this region.
- Gender: Male
- Address: Suite 530 4230 Harding Pike Nashville, 37205, TN
- Gender: Male
- Address: Suite 208 28 White Bridge Road Nashville, 37205, TN
- Gender: Male
- Address: 46 Fairview Avenue Suite 221 Skowhegan, 4976, ME
- Gender: Male
- Address: #400 4230 Harding Pike Nashville, 37205, TN
- Gender: Male
- Address: #309 4230 Harding Pike Nashville, 37205, TN
- Gender: Male
- Address: 413 West Brookfield Avenue Nashville, 37205, TN
Questions & Answers
What conditions does Dr. Howard R. Mertz treat?
Dr. Howard R. Mertz provides treatment for Autoimmune Hepatitis, Cirrhosis, Gastric Bypass Surgery, Hepatitis C (HCV), Pancreatic Cancer, Pancreatic Cysts. For the full list see this list.
Does Dr. Howard R. Mertz have affiliation with practices?
Dr. Howard R. Mertz is affiliated with Skyline Medical Group. For the full list of practices see this list.
Where can you meet with Dr. Howard R. Mertz?
Dr. Howard R. Mertz's office is located at 4230 Harding Road Suite 309 Medical Plaza West in Nashville, TN 37205.
Does Dr. Howard R. Mertz accept insurance?
Dr. Howard R. Mertz is listed in-network for 41 ACA Marketplace (Obamacare/HealthCare.gov) plans from Ambetter of Tennessee, BlueCross BlueShield of Tennessee, Cigna Healthcare, UnitedHealthcare. See the Marketplace plans section for details.
Has Dr. Howard R. Mertz affiliation with hospitals?
Dr. Howard R. Mertz is affiliated with TRISTAR CENTENNIAL MEDICAL CENTER.