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Edit this profileWhere to find William Tillis
- Lake Geneva location main office
N2950 State Road 67, Lake Geneva, WI 53147 - Columbia location
1 Richland Medical Park Dr Ste 300, Columbia, SC 29203 - Peoria location
1001 Main St, Suite 200, Peoria, IL 61606 - Janesville location
1000 Mineral Point Ave, Janesville, WI 53548 - Janesville location
903 Mineral Point Ave, Janesville, WI 53548
About William Tillis
William Tillis practices pulmonary disease in Lake Geneva, WI. William is a 1986 graduate of University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb). Medicare claims data shows William provided 351 services to 320 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and test to measure expiratory airflow and volume changes before and after medication administration. The provider's National Provider Identifier (NPI) is 1669468377.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (262) 245-0535
- Email not available
Practice Locations
N2950 STATE ROAD 67
Lake Geneva, WI 53147
1 Richland Medical Park Dr Ste 300
Columbia, SC 29203
1001 Main St Suite 200
Peoria, IL 61606
1000 Mineral Point Ave
Janesville, WI 53548
903 Mineral Point Ave
Janesville, WI 53548
Conditions Commonly Evaluated or Treated
Within Pulmonary Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Chronic conditions
- Cystic Fibrosis Malabsorption
Most searched conditions
- Asthma
- Chronic cough
- COPD
- Lung cancer
- Pulmonary fibrosis
- Shortness of breath
- Sleep apnea
Airway disorders
- Acute bronchitis
- Bronchiectasis
- Chronic Throat Clearing and Chronic Cough
Blood vessel disorders
- Blood Clot in Lung
- Pulmonary hypertension
Critical care
- Respiratory failure
Diagnostic findings
- Swollen Chest Lymph Nodes
Environmental lung diseases
- Chronic Beryllium Disease
Genetic conditions
- Alpha-1 antitrypsin deficiency
- Cystic fibrosis in adults
Infections
- Community-acquired pneumonia
- Fungal lung infection
- Legionnaires' Disease
- Lung abscess
- NTM lung infection
- Severe Pneumonia
- Tuberculosis
- Valley fever
- Walking Pneumonia in Children
- Whooping Cough
Inflammatory conditions
- Farmer's lung
- Interstitial lung disease
- Sarcoidosis
Lung growths
- Mesothelioma
- Suspicious Lung Spot
Occupational & environmental
- Asbestos lung damage
- Black lung disease
- Silicosis
- Vaping lung illness
Pleural disorders
- Collapsed lung
- Fluid around the lungs
- Pain when breathing
Post-infection conditions
- Long COVID lung problems
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
- Lung Bullae
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Biopsies
- Lung Biopsy
- Lung Cryobiopsy
Breathing
- CPAP Setup and Mask Troubleshooting
- Home Oxygen Therapy Training
- Nebulizer Breathing Treatment Training
Pleural procedures
- Draining lung fluid
- Chest tube insertion
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
Sleep medicine
- At-home sleep test
- BiPAP therapy
- CPAP titration
- Overnight oxygen study
- Sleep study
Treatments
Most searched procedures
- Bronchoscopy
- Oxygen therapy management
- Pulmonary function test
- Spirometry
Airway care
- Trach Tube Care and Changing
Airway management
- Tracheostomy care
Biopsies & diagnostics
- EBUS lung biopsy
- Needle biopsy of lung
- Robotic lung biopsy
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
- Endobronchial Ultrasound Staging
Consultations
- Pre-op lung clearance
Counseling & prevention
Critical care
- Ventilator Weaning Evaluation
Diagnostic procedures
- Lung Wash Procedure
Drainage care
- Pleural Catheter Removal
Imaging
- Chest CT Scan
- Chest X-Ray
- Lung Perfusion Scan
Interventional procedures
- Bronchial thermoplasty
- Lung valve placement for emphysema
Lab tests
- Arterial blood gas test
- Sputum test
Lung tests
- Pre- And Post-Bronchodilator Test
Medications
- Severe Asthma Biologics
Monitoring
- Asthma Action Plan Consultation
- Continuous Pulse Oximetry
Procedures
- Foreign Object Removal From Airway
- Windpipe stent placement
Rehabilitation
- Airway clearance therapy
- Pulmonary rehabilitation
Screening
- Low-dose CT lung cancer screening
Sleep equipment
- CPAP Mask Fitting
Sleep treatments
- Sleep Apnea Dental Device Evaluation
Specialist evaluations
- Lung Transplant Evaluation
- Lung Volume Reduction Evaluation
Specialized testing
- High-Altitude Oxygen Test
Procedures Most Often Billed to Medicare
351 services · 320 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
59 | As often as other peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
53 | As often as other peers in Pulmonary Disease |
| Test to determine lung volumes using sensors | Treatment | 94726 |
49 | As often as other peers in Pulmonary Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
67 | Less often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
61 | As often as other peers in Pulmonary Disease |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
48 | As often as other peers in Pulmonary Disease |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
14 | Less often than most peers in Pulmonary Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Test to measure expiratory airflow and volume changes before and after medication administration 8
Providers in WI who bill this service to Medicare most often.
Common questions
What is William Tillis's specialty?
William Tillis is a lung specialist in Lake Geneva, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where can I find William Tillis?
William Tillis is listed at N2950 State Road 67, Lake Geneva, WI 53147. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact William Tillis?
The number on file is (262) 245-0535. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for William Tillis?
William Tillis's National Provider Identifier is 1669468377. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is William Tillis's education?
William Tillis attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does William Tillis have?
William Tillis has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is William Tillis known for?
According to Medicare billing data, William Tillis provides treatments such as test to measure expiratory airflow and volume changes before and after medication administration and test to examine how well the lungs exchange gases, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is William Tillis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William Tillis. If this is you, claiming it is free.
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