Physician Profile
Unclaimed ProfileAbout CHAMMAS
Based in San Diego, CA, Joseph H Chammas, M.D. is listed in the NPI registry under thoracic surgery. Joseph graduated from Medical College of Wisconsin in 1993. Joseph is also listed as specializing in thoracic surgery (cardiothoracic). According to Medicare claims data, Joseph cared for 482 Medicare patients across 1,014 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (858) 939-7471
- Email not available
Practice Locations
8010 FROST ST SUITE 408
San Diego, CA 92123
Procedures Most Often Billed to Medicare
1,014 services · 482 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of skin and tissue, 20.0 sq cm or less | Procedure | 11042 |
30 |
| Creation of artery-vein connection using tube graft for hemodialysis | Procedure | 36830 |
20 |
| Revision of hemodialysis graft | Procedure | 36832 |
15 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
364 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
320 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
121 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
111 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
33 |
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 surgeons 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 thoracic surgeons in San Diego 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of skin and tissue, 20.0 sq cm or less 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Chammas's specialty?
Dr. Chammas is a thoracic surgeon in San Diego, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “THORACIC SURGERY”.
NPI registry
Where can I find Dr. Chammas?
Dr. Chammas is listed at 8010 FROST ST SUITE 408, San Diego, CA 92123. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Chammas?
The number on file is (858) 939-7471. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chammas's NPI number?
Dr. Chammas's National Provider Identifier is 1902888522. 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 Dr. Chammas's medical education?
Dr. Chammas attended Medical College of Wisconsin, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chammas been practicing?
Dr. Chammas has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Chammas known for?
According to Medicare billing data, Dr. Chammas performs procedures including removal of skin and tissue, 20.0 sq cm or less, creation of artery-vein connection using tube graft for hemodialysis and revision of hemodialysis graft, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chammas confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chammas. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.