Doctor profile · Federal record
Dr. Gregory Lines, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Cambridge, MA
- NPI 1053842773
- Accepts Medicare
- MIPS 81.3 / 100 · 2023
- 9 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1493 Cambridge St
Cambridge, MA 021391047
(617) 665-1000
Credentials & registration
- NPI registered
- March 2017 — 9 yrs on file
- Profile last updated
- June 9, 2022
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #282252
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053842773. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
239
Distinct HCPCS
5
Medicare allowed
$25,344
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 133 | 59 | $84 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 45 | 44 | $138 | |
99239 |
Hospital discharge day management, more than 30 minutes | 33 | 32 | $123 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 15 | $184 | |
99238 |
Hospital discharge day management, 30 minutes or less | 13 | 13 | $87 |
In context: peer comparison
Among 70 peers in Cambridge Internal Medicine Physician, average services per provider: 94. This provider delivers 2.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
0
Total drug cost
$431
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) | Brand | 11 | 0 | $431 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Lines's medical specialty?
Dr. Gregory Lines practices Internal Medicine Physician in Cambridge, MA.
Where does Dr. Gregory Lines practice?
Dr. Gregory Lines practices at 1493 Cambridge St, Cambridge, MA 021391047. Office phone: 6176651000.
What is Dr. Gregory Lines's NPI?
Dr. Gregory Lines's National Provider Identifier (NPI) is 1053842773, issued by NPPES.
Does Dr. Gregory Lines accept Medicare assignment?
Yes. Dr. Gregory Lines accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Lines commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.