Dr. John McCahan
- Gender: Male
- Experience: 18 years
- Graduated from: Temple University School Of Medicine
- Graduation year: 2003
- Sole propriator: No
- NPI: 1144319922
Dr. John McCahan MD
Rheumatologist
He is located at 931 Highland Boulevard Suite 3260 in Bozeman, MT 59715. Can help patients with the following: Acute Pain, Antiphospholipid Syndrome (APS), Hypermobility Syndrome, Inguinal Hernia, Osteoporosis, Tendinitis. His National Provider Identifier (NPI) number is 1144319922. Appointment can be made via the phone number (406) 414-5198. He is affiliated with 1 practices and 5 hospitals.
Conditions treated
Dr. John Waldron Mccahan, being an rheumatologist, 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 McCahan.
- Abdominal Pain
- Acute Pain
- Amyloidosis
- Anemia
- Ankylosing Spondylitis
- Antiphospholipid Syndrome (APS)
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Bone Loss
- Bursitis
- Chest Pain
- Cholecystitis
- Chronic Fatigue Syndrome (CFS)
- Chronic Obstructive Pulmonary Disease (COPD)
- Claudication
- Collagen Vascular Disease (CVD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Erythema Nodosum
- Fever
- Fibromyalgia
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Gout
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hypermobility Syndrome
- Hyponatremia
- Influenza
- Inguinal Hernia
- Low Back Pain
- Lupus
- Migraine
- Muscle Pain
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Patellofemoral Pain Syndrome (PFS)
- Peptic Ulcer
- Polymyalgia Rheumatica (PMR)
- Polymyositis (PM)
- Porphyria
- Prescription Refill
- Psoriatic Arthritis
- Raynaud's Phenomenon
- Reactive Arthritis
- Rheumatoid Arthritis (RA)
- Sacroiliac Joint Pain
- Sarcoidosis
- Scleroderma
- Sjogren's Syndrome
- Spondylolysis
- Tendinitis
- Urethritis
- Urinary Tract Infection (UTI)
- Vasculitis
- Weber-Christian Disease
Procedures Performed by Dr. John McCahan
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John McCahan 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 | Accepting new patients |
| Blue Focus Bronze POS℠ 705 (3 plan variants) | POS · Bronze | Blue Focus POS | Accepting new patients |
| Blue Focus Bronze POS℠ Standard (3 plan variants) | POS · Expanded Bronze | Blue Focus POS | Accepting new patients |
| Blue Focus Gold POS℠ 207 (3 plan variants) | POS · Gold | Blue Focus POS | Accepting new patients |
| Blue Focus Gold POS℠ 902 (3 plan variants) | POS · Gold | Blue Focus POS | Accepting new patients |
| Blue Focus Gold POS℠ Standard (3 plan variants) | POS · Gold | Blue Focus POS | Accepting new patients |
| Blue Focus Silver POS℠ 206 (3 plan variants) | POS · Silver | Blue Focus POS | Accepting new patients |
| Blue Focus Silver POS℠ 903 (3 plan variants) | POS · Silver | Blue Focus POS | Accepting new patients |
| Blue Focus Silver POS℠ Standard (3 plan variants) | POS · Silver | Blue Focus POS | Accepting new patients |
| Blue Preferred Bronze PPO℠ 201 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Bronze PPO℠ 202 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Bronze PPO℠ Standard (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ 204 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ 901 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ Standard (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Security PPO℠ 200 (4 plan variants) | PPO · Catastrophic | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ 203 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ 308 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ Standard (4 plan variants) | PPO · Silver | Blue Preferred PPO | 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. John McCahan 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 McCahan is enrolled to bill Medicare as a Practitioner - Rheumatology (also registered under: Practitioner - Internal Medicine) .
Bills through: Bozeman Health Deaconess Hospital
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Horizon Pharma | $136 |
| AbbVie | $124 |
| Amgen | $21 |
Other
| Food and Beverage | $297 |
Studies
TEMPLE UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2003Additional Specialities
- Internist
Affiliated hospitals
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Questions & Answers
What conditions does Dr. John Waldron Mccahan treat?
Dr. John Waldron Mccahan provides treatment for Acute Pain, Antiphospholipid Syndrome (APS), Hypermobility Syndrome, Inguinal Hernia, Osteoporosis, Tendinitis. For the full list see this list.
Does Dr. John Waldron Mccahan accept patients with Mountain Health CO-OP?
Yes, Dr. John Waldron Mccahan is listed in-network for Mountain Health CO-OP through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. John Waldron Mccahan affiliation with hospitals?
Dr. John Waldron Mccahan is affiliated with ST PETER'S HEALTH. For the full list of hospitals see this list.
Does Dr. John Waldron Mccahan have affiliation with practices?
Dr. John Waldron Mccahan is affiliated with Medical Associates.
Where can you meet with Dr. John Waldron Mccahan?
Dr. John Waldron Mccahan's office is located at 931 Highland Boulevard Suite 3260 in Bozeman, MT 59715.