Dr. Christopher P. Learn, M.D.

Cardiology (Adult Congenital Heart Disease Physician)

Medicare participating

Medical school: Boston University School of Medicine (2003)
Years since graduation: 23
In the NPI registry since: 2007
Medicare patients seen, 2024: 1,289

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

2003Medical school: Boston University School of Medicine
2007Registered 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

Adult Congenital Heart Disease Physician primary
MA license 272518
Cardiovascular Disease Physician
MA license 272518 · OH license 35.089735
Internal Medicine Physician
MA license 272518 · OH license 35.089735
Pediatric Cardiology Physician
MA license 272518
Pediatrics Physician
MA license 272518 · OH license 35.089735

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Cardiology per capita by county →

Where they work

Hospitals

Brigham and Women's Hospital Boston, MA
Massachusetts General Hospital Boston, MA
North Shore Medical Center - Salem, MA
Wentworth-Douglass Hospital Dover, NH
Massachusetts Eye and Ear Infirmary - Boston, MA

Medical groups

Massachusetts General Physicians Organization Inc (3,558 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: 1,289
Services billed: 2,016
Patients’ average age: 73

Most frequent Medicare services, 2023
Service	Times	Patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	904	771
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	242	240
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	208	158
Established patient office or other outpatient visit, 40-54 minutes	133	111
Established patient office or other outpatient visit, 30-39 minutes	103	93
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	76	33
Ultrasound of heart with color-depicted blood flow, rate and valve function	55	54
Ultrasound of heart blood flow, valves and chambers	42	42
Interpretation and report of ultrasound of heart	41	40
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	34	21

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

Most prescribed drugs, Medicare Part D 2024
Drug	Prescriptions
Atorvastatin Calcium Other prescribers in Boston, MA	96
Metoprolol Succinate Other prescribers in Boston, MA	94
Amlodipine Besylate Other prescribers in Boston, MA	71
Lisinopril Other prescribers in Boston, MA	59
Losartan Potassium Other prescribers in Boston, MA	50
Hydrochlorothiazide Other prescribers in Boston, MA	43
Furosemide Other prescribers in Boston, MA	34
Isosorbide Mononitrate Er (isosorbide mononitrate) Other prescribers in Boston, MA	34
Eliquis (apixaban) Other prescribers in Boston, MA	29
Atenolol Other prescribers in Boston, MA	23

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

At a glance