Dr. William C. Anderson
- Gender: Male
- Experience: 42 years
- Graduated from: University Of North Dakota School Of Medicine
- Graduation year: 1979
- Sole propriator: No
- NPI: 1083698740
Dr. William C. Anderson MD
Neuromusculoskeletal Medicine Specialist
He is located at 281 North 17th Avenue in Forsyth, MT 59327. Can help patients with the following: Asthma, Autism, Chronic Obstructive Pulmonary Disease (COPD), Fibromyalgia, Hypothyroidism, Prescription Refill. His National Provider Identifier (NPI) number is 1083698740. Appointment can be made via the phone number (406) 346-2916. He is affiliated with 3 hospitals.
Conditions treated
Dr. William Carl Anderson, being an neuromusculoskeletal medicine specialist, 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. William C. Anderson.
- Abdominal Pain
- Aging In Place
- Anxiety
- Arthritis
- Asthma
- Autism
- Birth Control Counseling
- Breastfeeding and Lactation
- Carpal Tunnel Syndrome
- Cerebral Palsy (CP)
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Diabetes
- Fever
- Fibromyalgia
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- High Blood Pressure
- Hyperlipidemia
- Hypothyroidism
- Infant Care
- Inflammatory Bowel Disease (IBD)
- Influenza
- Irritable Bowel Syndrome (IBS)
- Lung Cancer
- Migraine
- Mold Exposure
- Multiple Sclerosis (MS)
- Myofascial Pain Syndrome (MPS)
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Pneumonia
- Pregnancy
- Prenatal Care
- Prescription Refill
- Sciatica
- Strep Throat
- Thyroid Disease
- Urinary Tract Infection (UTI)
- Women's Health
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William C. Anderson as in-network for the following 2026 plans.
Health plans
Mountain Health CO-OP
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 31 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 |
| ROCKY MOUNTAIN GOLD HDHP | PPO · Gold | Preferred | Accepting new patients |
| ROCKY MOUNTAIN BRONZE | PPO · Expanded Bronze | Preferred | Accepting new patients |
| ROCKY MOUNTAIN BRONZE HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Rocky Mountain Bronze Standard | PPO · Expanded Bronze | Preferred | Accepting new patients |
| ROCKY MOUNTAIN GOLD | PPO · Gold | Preferred | Accepting new patients |
| Rocky Mountain Gold Standard | PPO · Gold | Preferred | Accepting new patients |
| ROCKY MOUNTAIN SILVER | PPO · Silver | Preferred | Accepting new patients |
| ROCKY MOUNTAIN SILVER HDHP | PPO · Silver | Preferred | Accepting new patients |
| Rocky Mountain Silver Standard | PPO · 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. William C. Anderson 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. William C. Anderson is enrolled to bill Medicare as a Practitioner - Family Practice .
Bills through: Roundup Memorial Hospital Association
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
| AstraZeneca | $401 |
| Novo Nordisk | $285 |
| GlaxoSmithKline | $185 |
Other
| Food and Beverage | $1766 |
Studies
UNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated in 1979Additional Specialities
- Family Physician
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Questions & Answers
Has Dr. William Carl Anderson affiliation with hospitals?
Dr. William Carl Anderson is affiliated with ST VINCENT HEALTHCARE. For the full list of hospitals see this list.
Does Dr. William Carl Anderson accept patients with Mountain Health CO-OP?
Yes, Dr. William Carl Anderson is listed in-network for Mountain Health CO-OP through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. William Carl Anderson?
Dr. William Carl Anderson's office is located at 281 North 17th Avenue in Forsyth, MT 59327.
What conditions does Dr. William Carl Anderson treat?
Dr. William Carl Anderson provides treatment for Asthma, Autism, Chronic Obstructive Pulmonary Disease (COPD), Fibromyalgia, Hypothyroidism, Prescription Refill. For the full list see this list.