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Edit this profileAt a glance
- 5525 Grossmont Center Dr, Ste 609, La Mesa, CA 91942
About Dr. Koumjian
Michael P. Koumjian, MD is a healthcare provider in La Mesa, CA specializing in thoracic surgery (cardiothoracic). Michael trained at Rutgers New Jersey Medical School, graduating in 1977. Medicare claims data shows Michael provided 891 services to 429 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, x-ray of chest, 1 view, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes. This provider record is associated with NPI 1366403321.
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
- (619) 466-5700
- Email not available
Practice Locations
5525 GROSSMONT CENTER DR STE 609
La Mesa, CA 91942
Conditions Commonly Evaluated or Treated
Within Thoracic Surgery 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
Airway
- Floppy Windpipe
- Hole Between Windpipe and Food Pipe
- Narrowed windpipe
- Windpipe Cancer
Chest tumors
- Mass between the lungs
- Thymus tumor
Chest wall
- Broken ribs
- Chest wall tumor
- Pigeon chest
- Slipping Rib Syndrome
- Sunken chest
Diaphragm
- Diaphragmatic hernia
- Paralyzed diaphragm
Esophagus
- Esophagus Spasms
Esophagus and stomach
- Acid reflux
- Barrett's esophagus
- Esophageal cancer
- Esophageal pouch
- Esophagus tear
- Hiatal hernia
- Swallowing difficulties
Heart lining
Infection
- Deep Chest Infection
Lung
- Bronchiectasis
- Congenital Lung Malformation
- Lung Bullae
- Persistent Air Leak
- Pulmonary fibrosis
Lung cancer
- Cancer Spread to the Lung
- Lung cancer
- Mesothelioma
Lung conditions
Nerves
- Severe Facial Blushing
Nerves and blood vessels
Neuromuscular
Pleural disease
- Asbestos lung damage
- Lymph Fluid Leak in Chest
Sweating disorders
- Excessive sweating
- Excessive underarm sweating
Trauma
- Broken Breastbone
Vascular
- Blocked Chest Vein
Procedures & services
Airway
- Surgical Tracheostomy
Airway surgery
- Airway surgery
- Windpipe stent placement
Chest tumors
- Chest tumor removal
- Thymus removal surgery
Chest wall
- Pigeon Chest Repair
- Slipping Rib Surgery
Chest wall surgery
- Broken rib plating surgery
- Chest wall reconstruction
- Sunken chest repair
- Thoracic Outlet Decompression
Diagnostic tests
Diagnostics
- EBUS lung biopsy
- Robotic Navigational Bronchoscopy
- Surgical Lung Biopsy
Diaphragm
- Diaphragm Pacemaker Implantation
Diaphragm surgery
- Diaphragm repair surgery
Emphysema
- Lung Volume Reduction Surgery
Esophagus
- Achalasia Surgery
- Esophageal Pouch Surgery
Esophagus surgery
- Acid reflux surgery
- Esophageal dilation
- Esophageal stent placement
- Esophagus removal surgery
- Hiatal hernia surgery
- Peroral endoscopic myotomy
Fluid drainage
Heart lining
- Heart Fluid Drainage (Pericardiocentesis)
- Pericardial Window Surgery
Lung surgery
- Collapsed lung surgery
- Lung cancer surgery
- Lung lining scraping and cleaning
- Lung nodule removal
- Lung valve placement for emphysema
- Minimally invasive lung surgery
Nerves
- Surgery for Facial Blushing
Pleural disease
- Chest Lymph Duct Ligation
Robotic surgery
- Robotic chest surgery
Surgical approach
- Open Chest Surgery
Sweat surgery
- Surgery for sweaty hands
Transplant
- Lung Transplant
Trauma
- Broken Breastbone Surgery
Procedures Most Often Billed to Medicare
891 services · 429 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
12 | Less often than most peers in Thoracic Surgery (Cardiothoracic) |
| X-ray of chest, 1 view | Imaging | 71045 |
207 | Too few peers to compare |
| Ct scan of chest without contrast | Imaging | 71250 |
25 | Too few peers to compare |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
18 | Too few peers to compare |
| Ct scan of chest with contrast | Imaging | 71260 |
12 | Too few peers to compare |
| Ultrasound of heart, follow-up | Treatment | 93308 |
39 | Too few peers to compare |
| Insertion of tube in left heart chambers for diagnosis with review by radiologist | Treatment | 93452 |
26 | Too few peers to compare |
| Interpretation and report of ultrasound of heart | Treatment | 93314 |
13 | Less often than most peers in Thoracic Surgery (Cardiothoracic) |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
266 | More than most peers in Thoracic Surgery (Cardiothoracic) |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
132 | More than most peers in Thoracic Surgery (Cardiothoracic) |
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 thoracic surgery 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.
More connections — 24 related providers in 3 groups
Trained at Rutgers New Jersey Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1977 at Rutgers New Jersey Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Replacement of aortic valve through the skin and femoral artery 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Koumjian?
Dr. Koumjian is a thoracic surgery (cardiothoracic) in La Mesa, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Koumjian's address?
Dr. Koumjian is listed at 5525 Grossmont Center Dr Ste 609, La Mesa, CA 91942. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Koumjian?
The number on file is (619) 466-5700. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Koumjian?
Dr. Koumjian's National Provider Identifier is 1366403321. 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. Koumjian train?
Dr. Koumjian attended Rutgers New Jersey Medical School, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Koumjian have?
Dr. Koumjian has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Koumjian perform?
According to Medicare billing data, Dr. Koumjian performs procedures including replacement of aortic valve through the skin and femoral artery; reads or performs imaging such as x-ray of chest, 1 view and ct scan of chest without contrast; provides treatments such as ultrasound of heart, follow-up and insertion of tube in left heart chambers for diagnosis with review by radiologist, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Koumjian's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Koumjian. If this is you, claiming it is free.
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