Dr. William Pierce
- Gender: Male
- Experience: 51 years
- Graduated from: University Of Illinois College Of Med (chi/peor/rock/chm-urb)
- Graduation year: 1970
- Sole propriator: No
- NPI: 1497838593
Dr. William Pierce MD
Family Physician
He is located at 210 East 90th Drive in Merrillville, IN 46410. Can help patients with the following: High Blood Pressure, Hyperlipidemia, Infant Care, Migraine, Osteoarthritis (OA), Prescription Refill. His National Provider Identifier (NPI) number is 1497838593. Appointment can be made via the phone number (219) 738-2008. He is affiliated with 1 practices and 3 hospitals.
Conditions treated
Dr. William John Pierce, being an family physician, 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 Pierce.
- Abdominal Pain
- Aging In Place
- Anxiety
- Arthritis
- Asthma
- Autism
- Birth Control Counseling
- Breastfeeding and Lactation
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Diabetes
- Fever
- General Care
- Headache
- Heart Disease
- High Blood Pressure
- Hyperlipidemia
- Hypothyroidism
- Infant Care
- Influenza
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Pregnancy
- Prenatal Care
- Prescription Refill
- Thyroid Disease
- Women's Health
Procedures Performed by Dr. William Pierce
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William Pierce as in-network for the following 2026 plans.
Health plans
CareSource
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 22 plans from CareSource
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze 7500 $25 Generic Drugs | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Diabetes Gold 3000 $0 Chronic Care Drugs & Services | HMO · Gold | Preferred | Accepting new patients |
| Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| Diabetes Silver 5000 $0 Chronic Care Drugs & Services | HMO · Silver | Preferred | Accepting new patients |
| Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| Gold 2000 $15 Generic Drugs | HMO · Gold | Preferred | Accepting new patients |
| Gold 2000 $15 Generic Drugs + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| HDHP Preventive Silver 5500 $0 Chronic Care Drugs | HMO · Silver | Preferred | Accepting new patients |
| Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services | HMO · Gold | Preferred | Accepting new patients |
| Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services | HMO · Silver | Preferred | Accepting new patients |
| Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| HSA Eligible Bronze 6000 | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Low Premium Bronze 10600 $25 Generic Drugs | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Low Premium Silver 6200 $3 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Low Premium Silver 6200 $3 Generic Drugs + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| Platinum Zero $5 Generic Drugs | HMO · Platinum | Preferred | Accepting new patients |
| Platinum Zero $5 Generic Drugs + Adult Vision & Fitness | HMO · Platinum | Preferred | Accepting new patients |
| Silver 6000 $20 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Silver 6000 $20 Generic Drugs + Adult Vision & Fitness | 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. William Pierce 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 Pierce is enrolled to bill Medicare as a Practitioner - Family Practice .
Bills through: Pinnacle Healthcare 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
| Pfizer | $504 |
| Teva Pharmaceuticals | $195 |
| Novartis | $191 |
Other
| Food and Beverage | $2492 |
Studies
UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated in 1970
Looking for more Family Physicians?
Out of the 27 family physicians in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 5495 Broadway Merrillville, 46410, IN
- Gender: Female
- Address: 751 East 81st Avenue Merrillville, 46410, IN
- Gender: Male
- Address: 109 East 89th Avenue Merrillville, 46410, IN
- Gender: Male
- Address: 1574 East 85th Avenue Merrillville, 46410, IN
- Gender: Male
- Address: 3903 East Lincoln Highway Merrillville, 46410, IN
- Gender: Male
- Address: 7863 Broadway Merrillville, 46410, IN
- Gender: Female
- Address: 270 East 90th Drive Merrillville, 46410, IN
- Gender: Female
- Address: 751 East 81st Avenue Merrillville, 46410, IN
- Gender: Female
- Address: 8558 Broadway Merrillville, 46410, IN
Questions & Answers
Has Dr. William John Pierce affiliation with hospitals?
Dr. William John Pierce is affiliated with ST MARY MEDICAL CENTER INC. For the full list of hospitals see this list.
Where can you meet with Dr. William John Pierce?
Dr. William John Pierce's office is located at 210 East 90th Drive in Merrillville, IN 46410.
What conditions does Dr. William John Pierce treat?
Dr. William John Pierce provides treatment for High Blood Pressure, Hyperlipidemia, Infant Care, Migraine, Osteoarthritis (OA), Prescription Refill. For the full list see this list.
Does Dr. William John Pierce accept patients with CareSource?
Yes, Dr. William John Pierce is listed in-network for CareSource through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. William John Pierce have affiliation with practices?
Dr. William John Pierce is affiliated with William J Pierce MD.