Doctor profile · Federal record
Dr. Yonatan Keschner, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Boston, MA
- NPI 1720437866
- Accepts Medicare
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Massachusetts General Hospital, 55 Fruit St.
Boston, MA 02114
(617) 724-4184
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #267306
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720437866. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
437
Distinct HCPCS
10
Medicare allowed
$64,214
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 126 | 125 | $183 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 87 | 86 | $103 | |
99291 |
Critical care, first 30-74 minutes | 50 | 49 | $221 | |
99284 |
Emergency department visit with moderate level of medical decision making | 47 | 47 | $126 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 29 | 29 | $142 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 28 | 28 | $70 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 24 | 24 | $184 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 22 | $153 | |
93308 |
Ultrasound of heart, follow-up | 13 | 13 | $26 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 11 | 11 | $88 |
In context: peer comparison
Among 183 peers in Boston Emergency Medicine Physician, average services per provider: 65. This provider delivers 6.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
59
Patients
59
Total drug cost
$625
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 22 | 22 | $211 |
| Doxycycline Monohydrate | Generic | 15 | 15 | $168 |
| Cephalexin | Generic | 11 | 11 | $62 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 11 | 11 | $184 |
Hospital affiliations
Frequently asked questions
What is Dr. Yonatan Keschner's medical specialty?
Dr. Yonatan Keschner practices Emergency Medicine Physician in Boston, MA.
Where does Dr. Yonatan Keschner practice?
Dr. Yonatan Keschner practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177244184.
What is Dr. Yonatan Keschner's NPI?
Dr. Yonatan Keschner's National Provider Identifier (NPI) is 1720437866, issued by NPPES.
Does Dr. Yonatan Keschner accept Medicare assignment?
Yes. Dr. Yonatan Keschner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yonatan Keschner commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Established patient office or other outpatient visit (HCPCS 99214); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.