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- 13939 E 14Th St, San Leandro, CA 94578
About Dr. Ruddy
John Ruddy, M.D. practices pulmonary disease in San Leandro, CA. John is a 1980 graduate of Georgetown University School of Medicine. According to Medicare claims data, John cared for 353 Medicare patients across 469 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, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. The provider's National Provider Identifier (NPI) is 1902890130.
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
- (510) 263-3300
- Email not available
Practice Locations
13939 E 14TH ST
San Leandro, CA 94578
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
- 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
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
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
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
Screening
- Low-dose CT lung cancer screening
Sleep equipment
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
469 services · 353 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Sleep study in sleep lab (6 years or older) | Treatment | 95810 |
56 | More often than most peers in Pulmonary Disease |
| Sleep study in sleep lab with continuous airway pressure (6 years or older) | Treatment | 95811 |
46 | More often than most 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 |
201 | More often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
101 | More often than most 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 |
65 | 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.
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 San Leandro 2
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Sleep study in sleep lab (6 years or older) 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is John Ruddy's specialty?
John Ruddy is a lung specialist in San Leandro, CA. 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 John Ruddy?
John Ruddy is listed at 13939 E 14Th St, San Leandro, CA 94578. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact John Ruddy?
The number on file is (510) 263-3300. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Ruddy's NPI number?
John Ruddy's National Provider Identifier is 1902890130. 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 John Ruddy's education?
John Ruddy attended Georgetown University School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has John Ruddy been practicing?
John Ruddy has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What is John Ruddy known for?
According to Medicare billing data, John Ruddy provides treatments such as sleep study in sleep lab and sleep study in sleep lab with continuous airway pressure, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John Ruddy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Ruddy. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.