Dr. Gay J. Canaris
- Gender: Female
- Experience: 34 years
- Graduated from: Southwest School Of Medicine And Hospital
- Graduation year: 1987
- Sole propriator: No
- NPI: 1851358147
Dr. Gay J. Canaris MD
Internist
She is located at 801 North 29th Street in Billings, MT 59101. Can help patients with the following: Arthritis, Constipation, Inguinal Hernia, Prescription Refill, Urethritis, Urinary Tract Infection (UTI). Her National Provider Identifier (NPI) number is 1851358147. Appointment can be made via the phone number (406) 238-2500. She is affiliated with 3 practices and 2 hospitals.
Conditions treated
Dr. Gay J. Canaris, 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. Gay J. Canaris.
- 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. Gay J. Canaris
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Gay J. Canaris as in-network for the following 2026 plans.
Health plans
Blue Cross and Blue Shield of Montana
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 19 plans from Blue Cross and Blue Shield of Montana
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Focus Bronze POS℠ 205 (3 plan variants) | POS · Expanded Bronze | Blue Focus POS | Not accepting new patients |
| Blue Focus Bronze POS℠ 705 (3 plan variants) | POS · Bronze | Blue Focus POS | Not accepting new patients |
| Blue Focus Bronze POS℠ Standard (3 plan variants) | POS · Expanded Bronze | Blue Focus POS | Not accepting new patients |
| Blue Focus Gold POS℠ 207 (3 plan variants) | POS · Gold | Blue Focus POS | Not accepting new patients |
| Blue Focus Gold POS℠ 902 (3 plan variants) | POS · Gold | Blue Focus POS | Not accepting new patients |
| Blue Focus Gold POS℠ Standard (3 plan variants) | POS · Gold | Blue Focus POS | Not accepting new patients |
| Blue Focus Silver POS℠ 206 (3 plan variants) | POS · Silver | Blue Focus POS | Not accepting new patients |
| Blue Focus Silver POS℠ 903 (3 plan variants) | POS · Silver | Blue Focus POS | Not accepting new patients |
| Blue Focus Silver POS℠ Standard (3 plan variants) | POS · Silver | Blue Focus POS | Not accepting new patients |
| Blue Preferred Bronze PPO℠ 201 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Bronze PPO℠ 202 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Bronze PPO℠ Standard (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Gold PPO℠ 204 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Gold PPO℠ 901 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Gold PPO℠ Standard (4 plan variants) | PPO · Gold | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Security PPO℠ 200 (4 plan variants) | PPO · Catastrophic | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Silver PPO℠ 203 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Silver PPO℠ 308 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Not accepting new patients |
| Blue Preferred Silver PPO℠ Standard (4 plan variants) | PPO · Silver | Blue Preferred PPO | Not accepting new patients |
Mountain Health CO-OP
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 22 plans from Mountain Health CO-OP
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| PEAK PPO BRONZE | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Bronze HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| PEAK PPO BRONZE HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Bronze Standard | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Catastrophic | PPO · Catastrophic | Preferred | Accepting new patients |
| Peak PPO Gold | PPO · Gold | Preferred | Accepting new patients |
| PEAK PPO GOLD | PPO · Gold | Preferred | Accepting new patients |
| PEAK PPO GOLD HDHP | PPO · Gold | Preferred | Accepting new patients |
| Peak PPO Gold Standard | PPO · Gold | Preferred | Accepting new patients |
| Peak PPO Silver | PPO · Silver | Preferred | Accepting new patients |
| PEAK PPO SILVER | PPO · Silver | Preferred | Accepting new patients |
| PEAK PPO SILVER HDHP | PPO · Silver | Preferred | Accepting new patients |
| Peak PPO Silver Standard | PPO · Silver | Preferred | Accepting new patients |
| Plus Bronze (2 plan variants) | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Bronze HDHP | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Bronze Standard | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Gold (2 plan variants) | PPO · Gold | Tier Two | Accepting new patients |
| Plus Gold HDHP | PPO · Gold | Tier Two | Accepting new patients |
| Plus Gold Standard | PPO · Gold | Tier Two | Accepting new patients |
| Plus Silver | PPO · Silver | Tier Two | Accepting new patients |
| Plus Silver HDHP | PPO · Silver | Tier Two | Accepting new patients |
| Plus Silver Standard | PPO · Silver | Tier Two | Accepting new patients |
PacificSource Health Plans
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 8 plans from PacificSource Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Core Bronze HSA 10600 | EPO · Bronze | Tier One | Accepting new patients |
| Core Bronze HSA 8300 | EPO · Expanded Bronze | Tier One | Accepting new patients |
| Core Gold 1500 | EPO · Gold | Tier One | Accepting new patients |
| Core Silver 3500 | EPO · Silver | Tier One | Accepting new patients |
| Core Silver 5000 | EPO · Silver | Tier One | Accepting new patients |
| Core Standard Expanded Bronze HSA | EPO · Expanded Bronze | Tier One | Accepting new patients |
| Core Standard Gold | EPO · Gold | Tier One | Accepting new patients |
| Core Standard Silver | EPO · Silver | Tier One | 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. Gay J. Canaris 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. Gay J. Canaris is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Billings Clinic
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.
Studies
SOUTHWEST SCHOOL OF MEDICINE AND HOSPITAL
Graduated in 1987Affiliated practices
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Questions & Answers
What conditions does Dr. Gay J. Canaris treat?
Dr. Gay J. Canaris provides treatment for Arthritis, Constipation, Inguinal Hernia, Prescription Refill, Urethritis, Urinary Tract Infection (UTI). For the full list see this list.
Does Dr. Gay J. Canaris accept patients with Mountain Health CO-OP?
Yes, Dr. Gay J. Canaris is listed in-network for Mountain Health CO-OP through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. Gay J. Canaris have affiliation with practices?
Dr. Gay J. Canaris is affiliated with Billings Clinic Hospital. For the full list of practices see this list.
Has Dr. Gay J. Canaris affiliation with hospitals?
Dr. Gay J. Canaris is affiliated with BILLINGS CLINIC. For the full list of hospitals see this list.
Where can you meet with Dr. Gay J. Canaris?
Dr. Gay J. Canaris's office is located at 801 North 29th Street in Billings, MT 59101.