Dr. John Nash
- Gender: Male
- Experience: 33 years
- Graduated from: Vanderbilt University School Of Medicine
- Graduation year: 1988
- Sole propriator: No
- NPI: 1336125293
Dr. John Nash M.D.
Internist
He is located at 625 South New Ballas Road Suite 2015 in Saint Louis, MO 63141. Can help patients with the following: Anemia, Gastroesophageal Reflux Disease (GERD), General Care, Hyponatremia, Inguinal Hernia, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1336125293. Appointment can be made via the phone number (314) 251-1700. He is affiliated with 1 practices and 4 hospitals.
Conditions treated
Dr. John Nash, being an internist, 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. John Nash.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. John Nash
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John Nash as in-network for the following 2026 plans.
Health plans
Ambetter Health
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Complete Silver | EPO · Silver | Preferred | Accepting new patients |
| Complete Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | 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 |
Anthem Blue Cross and Blue Shield
Network data as of Mar 26, 2026, as reported by the insurer.
Show all 10 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Pathway 10150 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Bronze | Participating | Accepting new patients at some locations |
| Anthem Bronze Pathway 6900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Catastrophic Pathway (+ Incentives) | EPO · Catastrophic | Participating | Accepting new patients at some locations |
| Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Gold | Participating | Accepting new patients at some locations |
| Anthem Heart Healthy Bronze Pathway 4900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Heart Healthy Silver Pathway 3100 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 5350 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 7200 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
Medica
Network data as of Jul 13, 2026, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Balance by Medica Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Bronze Premier | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Balance by Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Balance by Medica Silver Standard | EPO · Silver | 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. John Nash 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. John Nash is enrolled to bill Medicare as a Practitioner - Cardiovascular Disease (cardiology) .
Bills through: Mercy Clinic Heart And Vascular Llc
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
| St. Jude Medical | $42 |
| Astellas Pharma | $17 |
| Merck | $11 |
Other
| Food and Beverage | $72 |
Studies
VANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1988
Affiliated hospitals
Looking for more Internists?
Out of the 358 internists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 100 Medical Plaza Lake Saint Louis, 63367, MO
- Gender: Female
- Address: 621 South New Ballas Road Suite 112A Saint Louis, 63141, MO
- Gender: Male
- Address: Suite 280 12855 North 40 Drive Saint Louis, 63141, MO
- Gender: Male
- Address: 10511 Old Olive Street Road Saint Louis, 63141, MO
- Gender: Male
- Address: Div Im Gastroenterology, Ste 12B 4921 Parkview Place Saint Louis, 63110, MO
- Gender: Male
- Address: 9205 Southwest Barnes Road Portland, 97225, OR
- Gender: Female
- Address: 615 South New Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: 321 North Kuakini Street Suite 412 Honolulu, 96817, HI
- Gender: Male
- Address: Suite 100 711 Old Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: Ste 270 W 450 North New Ballas Road Saint Louis, 63141, MO
Questions & Answers
What conditions does Dr. John Nash treat?
Dr. John Nash provides treatment for Anemia, Gastroesophageal Reflux Disease (GERD), General Care, Hyponatremia, Inguinal Hernia, Urinary Tract Infection (UTI). For the full list see this list.
Does Dr. John Nash have affiliation with practices?
Dr. John Nash is affiliated with Mercy Cardiology LLC.
Where can you meet with Dr. John Nash?
Dr. John Nash's office is located at 625 South New Ballas Road Suite 2015 in Saint Louis, MO 63141.
Has Dr. John Nash affiliation with hospitals?
Dr. John Nash is affiliated with ST ANTHONY'S MEDICAL CENTER. For the full list of hospitals see this list.
Does Dr. John Nash accept patients with Ambetter Health?
Yes, Dr. John Nash is listed in-network for Ambetter Health through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.