Internal Medicine, Endocrinology, Diabetes, & Metabolism · Boston, MA
NPI
1083803159
Since 2007
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
0
Medicare group memberships
Hospitals
0
Hospital affiliations
252 Tremont St
Boston, MA, 02116
Phone (781) 258-1454
Medicare paid
-
No Medicare services published
Medicare patients
-
Drug cost, 2024
$1.1M
143 prescriptions
Company payments, 2025
$1,683
From 2 companies
Medicare prescription drug claims, 2024
In 2024, the drug Ernst J Schaefer prescribed most often to Medicare patients was Chenodal (Chenodiol), with 24 prescriptions and refills. In total Ernst J Schaefer wrote 143 Medicare prescriptions that cost $1.1M.
| Drug |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-10-15.
| Claims |
|---|
| 30-day fills |
|---|
| Patients |
|---|
| Cost |
|---|
| Chenodal Chenodiol | 24 | 24 | Under 11 | $1.1M |
| Ezetimibe Generic | 20 | 60 | Under 11 | $730 |
| Repatha Sureclick Evolocumab | 15 | 22 | Under 11 | $13K |
Brand drugs: 40 claims; generic drugs: 103 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Ernst J Schaefer $1,683 ($1,683 in general payments such as food, travel and fees) from 2 companies. The largest payer was Mirum Pharmaceuticals, Inc. with $1,625.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.