Doctor profile · Federal record
Dr. Rebecca Karp, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Boston, MA
- NPI 1265669659
- Accepts Medicare
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
330 Brookline Ave
Boston, MA 022155400
(617) 667-2100
fax (617) 975-5665 - Additional location
-
55 Fruit St
Boston, MA 021142621
(617) 726-2000 - Additional location
-
75 Francis St
Boston, MA 021156110
(617) 732-5500
Credentials & registration
- NPI registered
- June 2009 — 17 yrs on file
- Profile last updated
- February 11, 2026
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Massachusetts #251249
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265669659. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
368
Distinct HCPCS
6
Medicare allowed
$48,583
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 189 | 153 | $152 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 57 | 49 | $102 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 37 | 21 | $126 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 37 | 32 | $103 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 26 | $184 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 22 | 22 | $33 |
In context: peer comparison
Among 64 peers in this city , average services per provider: 129. This provider delivers 2.9× the peer median.Open Payments
Industry payments received
All-time total
$6,945
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| RECORDATI_RARE_DISEASES_INC. | 1 | $4,875.00 | |
| Alnylam Pharmaceuticals Inc. | 1 | $2,070.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
151
Patients
18
Total drug cost
$736,847
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 44 | 18 | $64,993 |
| Hydroxyurea | Generic | 40 | 0 | $787 |
| Jakafi (Ruxolitinib Phosphate) | Brand | 17 | 0 | $251,098 |
| Enoxaparin Sodium | Generic | 15 | 0 | $3,425 |
| Warfarin Sodium | Generic | 13 | 0 | $341 |
| Bosulif (Bosutinib) | Brand | 11 | 0 | $212,236 |
| Doptelet (Avatrombopag Maleate) | Brand | 11 | 0 | $203,968 |
Hospital affiliations
Frequently asked questions
What is Dr. Rebecca Karp's medical specialty?
Dr. Rebecca Karp practices Hematology & Oncology Physician in Boston, MA.
Where does Dr. Rebecca Karp practice?
Dr. Rebecca Karp practices at 330 Brookline Ave, Boston, MA 022155400. Office phone: 6176672100.
What is Dr. Rebecca Karp's NPI?
Dr. Rebecca Karp's National Provider Identifier (NPI) is 1265669659, issued by NPPES.
Does Dr. Rebecca Karp accept Medicare assignment?
Yes. Dr. Rebecca Karp accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rebecca Karp commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.