Doctor profile · Federal record
Dr. Christopher Dennis, MD
Internal Medicine Physician (CMS: Internal Medicine) · Cambridge, MA
- NPI 1255362505
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
330 Mount Auburn St, Hospitalist Services
Cambridge, MA 021385502
(617) 499-5112
fax (617) 575-8608
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 17, 2010
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #229005
- Medicaid
- MA #2120666
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255362505. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
896
Distinct HCPCS
4
Medicare allowed
$112,036
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 619 | 232 | $125 | |
99239 |
Hospital discharge day management, more than 30 minutes | 135 | 122 | $123 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 73 | 25 | $77 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 69 | 67 | $184 |
In context: peer comparison
Among 70 peers in Cambridge Internal Medicine Physician, average services per provider: 94. This provider delivers 9.5× the peer median.Frequently asked questions
What is Dr. Christopher Dennis's medical specialty?
Dr. Christopher Dennis practices Internal Medicine Physician in Cambridge, MA.
Where does Dr. Christopher Dennis practice?
Dr. Christopher Dennis practices at 330 Mount Auburn St, Cambridge, MA 021385502. Office phone: 6174995112.
What is Dr. Christopher Dennis's NPI?
Dr. Christopher Dennis's National Provider Identifier (NPI) is 1255362505, issued by NPPES.
Does Dr. Christopher Dennis accept Medicare assignment?
Yes. Dr. Christopher Dennis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Dennis commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.