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Edit this profileAt a glance
- 1310 W Stewart Dr Ste 408, Orange, CA 92868
About Dr. Stewart
Jack O. Stewart, M.D. practices pulmonary disease in Orange, CA. Jack is a 1979 graduate of Northwestern University Feinberg Medical School. According to Medicare claims data, Jack cared for 1,086 Medicare patients across 2,073 services. 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, subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, and test to measure expiratory airflow and volume. The provider's National Provider Identifier (NPI) is 1942278452.
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
- (714) 639-9401
- Email not available
Practice Locations
1310 W STEWART DR STE 408
Orange, CA 92868
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
2,073 services · 1,086 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration of initial secretion of lung airway using an endoscope | Procedure | 31645 |
21 | As often as other peers in Pulmonary Disease |
| Irrigation and suction of lung airways to obtain cells using an endoscope | Procedure | 31624 |
17 | As often as other peers in Pulmonary Disease |
| Diagnostic exam of lung airway using an endoscope | Procedure | 31622 |
16 | As often as other peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
231 | More often than most peers in Pulmonary Disease |
| Evaluation of use of breathing device | Treatment | 94664 |
25 | 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 |
612 | More often than most peers in Pulmonary Disease |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
511 | More than most peers in Pulmonary Disease |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
226 | More 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 |
176 | More often than most peers in Pulmonary Disease |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
112 | More 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.
Other lung specialists in Orange 8
Same specialty, same city.
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1979 at Northwestern University Feinberg Medical School 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration of initial secretion of lung airway using an endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Jack O. Stewart?
Jack O. Stewart is a lung specialist in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
What is Jack O. Stewart's address?
Jack O. Stewart is listed at 1310 W Stewart Dr Ste 408, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Jack O. Stewart?
The number on file is (714) 639-9401. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Jack O. Stewart's NPI number?
Jack O. Stewart's National Provider Identifier is 1942278452. 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 Jack O. Stewart train?
Jack O. Stewart attended Northwestern University Feinberg Medical School, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How long has Jack O. Stewart been practicing?
Jack O. Stewart has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What procedures does Jack O. Stewart perform?
According to Medicare billing data, Jack O. Stewart performs procedures including aspiration of initial secretion of lung airway using an endoscope, irrigation and suction of lung airways to obtain cells using an endoscope and diagnostic exam of lung airway using an endoscope; provides treatments such as test to measure expiratory airflow and volume and evaluation of use of breathing device, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jack O. Stewart confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jack O. Stewart. If this is you, claiming it is free.
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