Dr. Nathan R. Duffin
- Gender: Male
- Experience: 15 years
- Graduation year: 2006
- Sole propriator: No
- NPI: 1497016190
Dr. Nathan R. Duffin D.O.
Internist
He is located at 1301 South Crismon Road in Mesa, AZ 85209. Can help patients with the following: Abdominal Pain, Common Cold, Constipation, Gastroesophageal Reflux Disease (GERD), Migraine, Urethritis. His National Provider Identifier (NPI) number is 1497016190. Appointment can be made via the phone number (602) 708-2599. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. Nathan Rex Duffin, 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 R. Duffin.
- 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)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Nathan R. Duffin as in-network for the following 2026 plans.
Health plans
Imperial Insurance Companies, Inc.
Network data as of Sep 16, 2025, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Imperial Preferred Gold | HMO · Gold | Preferred | Accepting new patients |
| Imperial Preferred Silver | HMO · Silver | Preferred | Accepting new patients |
| Imperial Standard Bronze | HMO · Expanded Bronze | Standard | Accepting new patients |
| Imperial Standard Gold | HMO · Gold | Standard | Accepting new patients |
| Imperial Standard Silver | HMO · Silver | Standard | 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 R. Duffin 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 Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.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 R. Duffin is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Hospitalist) .
Bills through: Pulmonary Consultants P.c.
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
| Ekos | $114 |
| Janssen | $113 |
| Novartis | $96 |
Other
| Food and Beverage | $453 |
Studies
Graduated in 2006Additional Specialities
- Resident
Looking for more Internists?
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- Gender: Male
- Address: 1301 South Crismon Road Mesa, 85209, AZ
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- Address: 1301 South Crismon Road Mesa, 85209, AZ
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- Address: 5555 West Thunderbird Road Glendale, 85306, AZ
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- Address: 6811 East Superstition Springs Boulevard Mesa, 85209, AZ
- Gender: Female
- Address: 1301 South Crismon Road Mesa, 85209, AZ
- Gender: Female
- Address: 1301 South Crismon Road Mesa, 85209, AZ
Questions & Answers
What conditions does Dr. Nathan Rex Duffin treat?
Dr. Nathan Rex Duffin provides treatment for Abdominal Pain, Common Cold, Constipation, Gastroesophageal Reflux Disease (GERD), Migraine, Urethritis. For the full list see this list.
Has Dr. Nathan Rex Duffin affiliation with hospitals?
Dr. Nathan Rex Duffin is affiliated with MOUNTAIN VISTA MEDICAL CENTER, LP.
Does Dr. Nathan Rex Duffin accept insurance?
Dr. Nathan Rex Duffin is listed in-network for 5 ACA Marketplace (Obamacare/HealthCare.gov) plans from Imperial Insurance Companies, Inc.. See the Marketplace plans section for details.
Does Dr. Nathan Rex Duffin have affiliation with practices?
Dr. Nathan Rex Duffin is affiliated with Alliance Hospitalists. For the full list of practices see this list.
Where can you meet with Dr. Nathan Rex Duffin?
Dr. Nathan Rex Duffin's office is located at 1301 South Crismon Road in Mesa, AZ 85209.