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Edit this profileAt a glance
- 1501 N Campbell Ave, Tucson, AZ 85724
About Dr. Knoper
Based in Tucson, AZ, Steven R. Knoper, MD is listed in the NPI registry under pulmonary disease. Steven graduated from University of Washington School of Medicine in 1983. According to Medicare claims data, Steven cared for 48 Medicare patients across 99 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, critical care, first 30-74 minutes, and hospital discharge day management, 30 minutes or less. NPI 1427157718 identifies this record in the national registry.
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
- (520) 694-8888
- Email not available
Practice Locations
1501 N CAMPBELL AVE
Tucson, AZ 85724
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
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
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
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Biopsies
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
Airway care
Airway management
Biopsies & diagnostics
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep treatments
Specialist evaluations
Specialized testing
Procedures Most Often Billed to Medicare
99 services · 48 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
68 | As often as other peers in Pulmonary Disease |
| Critical care, first 30-74 minutes | Office visit | 99291 |
17 | Less often than most peers in Pulmonary Disease |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
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.
Other lung specialists at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Other lung specialists in Tucson 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at University of Washington School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Washington School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Knoper specialize in?
Dr. Knoper is a lung specialist in Tucson, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where is Dr. Knoper located?
Dr. Knoper is listed at 1501 N Campbell Ave, Tucson, AZ 85724. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Knoper's phone number?
The number on file is (520) 694-8888. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Knoper's NPI number?
Dr. Knoper's National Provider Identifier is 1427157718. 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
Where did Dr. Knoper go to medical school?
Dr. Knoper attended University of Washington School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Knoper been practicing?
Dr. Knoper has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Knoper do most often?
According to Medicare billing data, Dr. Knoper the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Knoper confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Knoper. If this is you, claiming it is free.
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