Dr. William P. Tillis
- Gender: Male
- Experience: 35 years
- Graduation year: 1986
- Sole propriator: No
- NPI: 1669468377
Dr. William P. Tillis M.D.
Pulmonologist
He is located at N2950 State Road 67 in Lake Geneva, WI 53147. Can help patients with the following: Acute Pain, Bronchitis, Diarrhea, Heart Disease, Influenza, Pleurisy. His National Provider Identifier (NPI) number is 1669468377. Appointment can be made via the phone number (262) 245-0535. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. William P. Tillis, being an pulmonologist, 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 P. Tillis.
- Abdominal Pain
- Acute Pain
- Alpha-1 Antitrypsin Deficiency (AATD)
- Anemia
- Arthritis
- Asbestosis
- Asthma
- Atherosclerosis
- Bladder Control
- Blood Clots
- Bronchiectasis
- Bronchitis
- Chest Pain
- Cholecystitis
- Chronic Cough
- Chronic Obstructive Pulmonary Disease (COPD)
- Collapsed Lung
- Common Cold
- Constipation
- Cryptococcosis
- Cystic Fibrosis (CF)
- Cystitis
- Diarrhea
- Edema
- Embolism
- Emphysema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Lung Cancer
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Pleural Effusion
- Pleurisy
- Pneumonia
- Prescription Refill
- Pulmonary Aspiration
- Pulmonary Embolism (PE)
- Pulmonary Fibrosis (PF)
- Pulmonary Hypertension (PH)
- Sarcoidosis
- Sleep Apnea
- Sleep Disorders
- Smoking and Quitting Smoking
- Tuberculosis (TB)
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William P. Tillis as in-network for the following 2026 plans.
Health plans
Anthem Blue Cross and Blue Shield
Network data as of Mar 25, 2026, as reported by the insurer.
Show all 9 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad HSA (+ Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 4000 ($0 PCP Visits + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
MercyCare Health Plans
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 6 plans from MercyCare Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| MercyCare Bronze 10,000 (1 Free PCP Visit) | HMO · Bronze | Preferred | Accepting new patients |
| MercyCare Bronze Standard Expanded | HMO · Expanded Bronze | Preferred | Accepting new patients |
| MercyCare Gold Standard | HMO · Gold | Preferred | Accepting new patients |
| MercyCare Silver 2,500 (3 Free PCP Visits) | HMO · Silver | Preferred | Accepting new patients |
| MercyCare Silver Health Savings | HMO · Silver | Preferred | Accepting new patients |
| MercyCare Silver Standard | 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 P. Tillis 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 P. Tillis is enrolled to bill Medicare as a Practitioner - Pulmonary Disease (also registered under: Practitioner - Internal Medicine) .
Bills through: Mercy Health System Corporation
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
| Respiratory Technologies | $87 |
| Maquet | $50 |
| Cook Medical | $14 |
Other
| Food and Beverage | $153 |
Studies
Graduated in 1986Additional Specialities
- Internist
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Questions & Answers
Where can you meet with Dr. William P. Tillis?
Dr. William P. Tillis's office is located at N2950 State Road 67 in Lake Geneva, WI 53147.
Has Dr. William P. Tillis affiliation with hospitals?
Dr. William P. Tillis is affiliated with PALMETTO HEALTH RICHLAND. For the full list of hospitals see this list.
Does Dr. William P. Tillis have affiliation with practices?
Dr. William P. Tillis is affiliated with Peoria Pulmonary Associates.
Does Dr. William P. Tillis accept patients with MercyCare Health Plans?
Yes, Dr. William P. Tillis is listed in-network for MercyCare Health Plans through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. William P. Tillis treat?
Dr. William P. Tillis provides treatment for Acute Pain, Bronchitis, Diarrhea, Heart Disease, Influenza, Pleurisy. For the full list see this list.