Dr. Mark L. Blitzer, M.D.
Cardiology (Cardiovascular Disease Physician)
- Medicare participating
At a glance
- Medical school
- Harvard Medical School (1991)
- Years since graduation
- 35
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 1,482
Licensed in Connecticut since 1999, according to the Connecticut Department of Public Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1991Medical school: Harvard Medical School
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Cardiovascular Disease Physician primary
CT license 037730 (first issued 1999; active) -
Specialist
CT license 037730 (first issued 1999; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Yale-New Haven Hospital New Haven, CT
- Bridgeport Hospital Bridgeport, CT
- Griffin Hospital Derby, CT
- Lawrence & Memorial Hospital New London, CT
Medical groups
- Yale University (2,645 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 1,482
- Services billed
- 4,413
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 1,043 | 823 |
| Established patient office or other outpatient visit, 30-39 minutes | 497 | 374 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 490 | 239 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 351 | 152 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 298 | 43 |
| Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 251 | 41 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 249 | 103 |
| Programming of dual lead pacemaker system | 151 | 114 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 141 | 124 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 85 | 48 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Metoprolol Succinate Other prescribers in New Haven, CT | 429 |
| Eliquis (apixaban) Other prescribers in New Haven, CT | 342 |
| Flecainide Acetate Other prescribers in New Haven, CT | 191 |
| Amiodarone Hcl Other prescribers in New Haven, CT | 151 |
| Xarelto (rivaroxaban) Other prescribers in New Haven, CT | 122 |
| Diltiazem 24hr Er (Cd) (diltiazem hcl) Other prescribers in New Haven, CT | 94 |
| Sotalol (sotalol hcl) Other prescribers in New Haven, CT | 91 |
| Metoprolol Tartrate Other prescribers in New Haven, CT | 59 |
| Carvedilol Other prescribers in New Haven, CT | 52 |
| Rosuvastatin Calcium Other prescribers in New Haven, CT | 43 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $156 in total to this clinician.
| Boston Scientific Corporation | $156 |
|---|
| Consulting Fee | $156 |
|---|
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Boston Scientific Corporation May 1, 2025 | Consulting Fee General - Therapies · General - Therapies_CRM | $156 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.