Physician Profile
Athir J. Hajjar, M.D.
Unclaimed ProfileAbout Dr. Hajjar
Based in El Cajon, CA, Athir J. Hajjar, M.D. is listed in the NPI registry under pulmonary disease. Athir is also listed as specializing in critical care medicine. According to Medicare claims data, Athir cared for 240 Medicare patients across 1,118 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 initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (619) 841-8148
- Email not available
Practice Locations
671 S MOLLISON AVE SUITE B & C
El Cajon, CA 92020
11109 Parkview Plaza Dr
Fort Wayne, IN 46845
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
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
Most searched procedures
- Bronchoscopy
- Oxygen therapy management
- Pulmonary function test
- Spirometry
Airway care
- Trach Tube Care and Changing
Airway management
- Tracheostomy care
Biopsies
- Lung Cryobiopsy
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
- Inhaler technique instruction
- Smoking cessation counseling
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
Pleural procedures
- Chest tube insertion
- Draining lung fluid
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
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 medicine
- At-home sleep test
- BiPAP therapy
- CPAP titration
- Overnight oxygen study
- Sleep study
Sleep treatments
- Sleep Apnea Dental Device Evaluation
Specialist evaluations
- Lung Transplant Evaluation
- Lung Volume Reduction Evaluation
Specialized testing
- High-Altitude Oxygen Test
Treatments
- Breathing Treatment
Procedures Most Often Billed to Medicare
1,118 services · 240 patients · 5 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 |
792 | More than most peers in Pulmonary Disease |
| Critical care, first 30-74 minutes | Office visit | 99291 |
237 | 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 |
61 | More often than most peers in Pulmonary Disease |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
16 | As often as other peers in Pulmonary Disease |
| Critical care, each additional 30 minutes | Office visit | 99292 |
12 | 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 Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Athir J. Hajjar specialize in?
Athir J. Hajjar is a lung specialist in El Cajon, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where is Athir J. Hajjar located?
Athir J. Hajjar is listed at 671 S Mollison Ave Suite B & C, El Cajon, CA 92020. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Athir J. Hajjar's phone number?
The number on file is (619) 841-8148. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Athir J. Hajjar's NPI number?
Athir J. Hajjar's National Provider Identifier is 1164476362. 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 Athir J. Hajjar train?
Athir J. Hajjar attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Athir J. Hajjar been practicing?
Athir J. Hajjar has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Athir J. Hajjar do most often?
According to Medicare billing data, Athir J. Hajjar 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 Athir J. Hajjar confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Athir J. Hajjar. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.