Doctor profile · Federal record
Dr. Katherine Ferguson, M.D.
Internal Medicine Physician · Boston, MA
- NPI 1891229829
- 9 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Fruit St
Boston, MA 021142621
(973) 255-7042
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- July 24, 2025
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #282719
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891229829. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
187
Distinct HCPCS
3
Medicare allowed
$10,660
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 134 | 40 | $48 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 32 | 32 | $80 | |
99238 |
Hospital discharge day management, 30 minutes or less | 21 | 21 | $78 |
In context: peer comparison
Among 547 peers in Boston Internal Medicine Physician, average services per provider: 81. This provider delivers 2.3× the peer median.Frequently asked questions
What is Dr. Katherine Ferguson's medical specialty?
Dr. Katherine Ferguson practices Internal Medicine Physician in Boston, MA.
Where does Dr. Katherine Ferguson practice?
Dr. Katherine Ferguson practices at 55 Fruit St, Boston, MA 021142621. Office phone: 9732557042.
What is Dr. Katherine Ferguson's NPI?
Dr. Katherine Ferguson's National Provider Identifier (NPI) is 1891229829, issued by NPPES.
What procedures does Dr. Katherine Ferguson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.