Based in Phoenix, AZ, Mark J Seifert, MD is listed in the NPI registry under cardiac electrophysiology. Mark graduated from Johns Hopkins University School of Medicine in 1989. Mark is also listed as specialising in cardiovascular disease and clinical cardiac electrophysiology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Seifert is a cardiac electrophysiology in Phoenix, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIAC ELECTROPHYSIOLOGY”.
NPI registry
Dr. Seifert is listed at 9250 N 3RD STREET SUITE 3010, Phoenix, AZ 85020. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (602) 861-1168. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Seifert's National Provider Identifier is 1942201694. 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
Dr. Seifert attended Johns Hopkins University School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
Dr. Seifert has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Seifert performs procedures including repair of left upper heart chamber with implant with review by radiologist, insertion of heart rhythm monitor under skin and insertion of pacemaker and upper and lower heart chamber electrode; provides treatments such as evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days and evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Seifert. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
9250 N 3RD STREET SUITE 3010
Phoenix, AZ 85020
5,857 services · 2,323 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Repair of left upper heart chamber with implant with review by radiologist | Procedure | 33340 |
37 |
| Insertion of heart rhythm monitor under skin | Procedure | 33285 |
22 |
| Insertion of pacemaker and upper and lower heart chamber electrode | Procedure | 33208 |
21 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
1,877 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
1,439 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
736 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
445 |
| Programming of dual lead pacemaker system | Treatment | 93280 |
354 |
| Programming of multiple lead implantable defibrillator system | Treatment | 93284 |
69 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
68 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in AZ who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.