Doctor profile · Federal record
Dr. Geon Kim, MD
Hematology (Internal Medicine) Physician (CMS: Hematology/Oncology) · Boston, MA
- NPI 1710369640
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
Massachusetts General Hospital, 55 Fruit St.
Boston, MA 02114
(617) 726-7939 - Additional location
-
75 Francis St
Boston, MA 021156106
(617) 732-5500 - Mailing address
-
55 Fruit St
Boston, MA 021142696
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- January 23, 2026
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RH0000X — NUCC code
- State license (1)
- Massachusetts #273705
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710369640. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
267
Distinct HCPCS
3
Medicare allowed
$29,197
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 127 | 69 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 126 | 58 | $126 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $184 |
In context: peer comparison
Among 26 peers in Boston Hematology (Internal Medicine) Physician, average services per provider: 95. This provider delivers 2.8× the peer median.Frequently asked questions
What is Dr. Geon Kim's medical specialty?
Dr. Geon Kim practices Hematology (Internal Medicine) Physician in Boston, MA.
Where does Dr. Geon Kim practice?
Dr. Geon Kim practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177267939.
What is Dr. Geon Kim's NPI?
Dr. Geon Kim's National Provider Identifier (NPI) is 1710369640, issued by NPPES.
Does Dr. Geon Kim accept Medicare assignment?
Yes. Dr. Geon Kim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Geon Kim commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.