Physician Profile
Michael Peter Koumjian, MD
Unclaimed ProfileAbout Dr. Koumjian
Michael Peter Koumjian, MD is a healthcare provider in La Mesa, CA specializing in cardiac surgery. Michael trained at Rutgers New Jersey Medical School, graduating in 1977. Michael is also listed as specializing in thoracic surgery (cardiothoracic). Medicare claims data shows Michael provided 891 services to 429 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (619) 466-5700
- Email not available
Practice Locations
5525 GROSSMONT CENTER DR STE 609
La Mesa, CA 91942
Procedures Most Often Billed to Medicare
891 services · 429 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
12 |
| X-ray of chest, 1 view | Imaging | 71045 |
207 |
| Ct scan of chest without contrast | Imaging | 71250 |
25 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
18 |
| Ct scan of chest with contrast | Imaging | 71260 |
12 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
39 |
| Insertion of tube in left heart chambers for diagnosis with review by radiologist | Treatment | 93452 |
26 |
| Interpretation and report of ultrasound of heart | Treatment | 93314 |
13 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
266 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
132 |
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 Rutgers New Jersey Medical School 5
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
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 cardiac surgeon in La Mesa, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIAC SURGERY”.
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. Guide.md cannot book appointments or pass on messages — please call the office directly.
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.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.