Dr. Nathan M. Markwart
- Gender: Male
- Experience: 13 years
- Graduation year: 2008
- Sole propriator: No
- NPI: 1265774574
Dr. Nathan M. Markwart D.O.
Internist
He is located at 1601 Clint Moore Road Suite 100 in Boca Raton, FL 33487. Can help patients with the following: Arthritis, Cystitis, Fever, Hyponatremia, Obesity, Urethritis. His National Provider Identifier (NPI) number is 1265774574. Appointment can be made via the phone number (561) 939-0200. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. Nathan Michael Markwart, 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. Nathan M. Markwart.
- 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. Nathan M. Markwart
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Nathan M. Markwart 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 26 plans from Cigna Healthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Connect Bronze Mid-South 0 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze Mid-South 5500 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze Mid-South CMS Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze Orlando 3000 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze Orlando 6000 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze Orlando CMS Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze South FL 3800 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze South FL 7000 Indiv Med Deductible | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze South FL CMS Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Gold Mid-South 2250 Indiv Med Deductible | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold Mid-South 850 Indiv Med Deductible | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold Mid-South CMS Standard | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold Orlando 1500 Indiv Med Deductible | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold Orlando CMS Standard | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold South FL 1500 Indiv Med Deductible | EPO · Gold | Preferred | Accepting new patients |
| Connect Gold South FL CMS Standard | EPO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze Mid-South | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Silver Mid-South 3800 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver Mid-South 4500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver Mid-South CMS Standard | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver Orlando 3500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver Orlando 5000 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver Orlando CMS Standard | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver South FL 2850 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver South FL 4500 Indiv Med Deductible | EPO · Silver | Preferred | Accepting new patients |
| Connect Silver South FL CMS Standard | EPO · Silver | Preferred | Accepting new patients |
Cigna HealthCare of Florida, Inc.
Network data as of Sep 15, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Partnered Care Classic Silver | HMO · Silver | Preferred | Accepting new patients |
| Partnered Care Gold CMS Standard | HMO · Gold | Preferred | Accepting new patients |
| Partnered Care Premier Gold | HMO · Gold | Preferred | Accepting new patients |
| Partnered Care Premier Silver | HMO · Silver | Preferred | Accepting new patients |
| Partnered Care Silver CMS Standard | HMO · 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. Nathan M. Markwart 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. Nathan M. Markwart is enrolled to bill Medicare as a Practitioner - Critical Care (intensivists) .
Bills through: Critical Care Associates Of South Florida 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
| Boehringer Ingelheim | $120 |
| Janssen | $17 |
Other
| Food and Beverage | $138 |
Studies
Graduated in 2008
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- Address: Suite 100 1601 Clint Moore Road Boca Raton, 33487, FL
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- Address: 6200 North Federal Highway Boca Raton, 33487, FL
Questions & Answers
Does Dr. Nathan Michael Markwart have affiliation with practices?
Dr. Nathan Michael Markwart is affiliated with Pulmonary & Sleep Associates of South Florida PA.
What conditions does Dr. Nathan Michael Markwart treat?
Dr. Nathan Michael Markwart provides treatment for Arthritis, Cystitis, Fever, Hyponatremia, Obesity, Urethritis. For the full list see this list.
Where can you meet with Dr. Nathan Michael Markwart?
Dr. Nathan Michael Markwart's office is located at 1601 Clint Moore Road Suite 100 in Boca Raton, FL 33487.
Does Dr. Nathan Michael Markwart accept patients with Cigna HealthCare of Florida, Inc.?
Yes, Dr. Nathan Michael Markwart is listed in-network for Cigna HealthCare of Florida, Inc. through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. Nathan Michael Markwart affiliation with hospitals?
Dr. Nathan Michael Markwart is affiliated with BOCA RATON REGIONAL HOSPITAL. For the full list of hospitals see this list.