Doctor profile · Federal record
Dr. Gregory Leslie, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Worcester, MA
- NPI 1710305289
- Accepts Medicare
- MIPS 89.0 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
55 Lake Ave N
Worcester, MA 016550002
(508) 334-8515
fax (508) 334-6490 - Additional location
-
119 Belmont St
Worcester, MA 016052903 - Additional location
-
157 Union St
Marlborough, MA 017521228
(508) 486-5678
fax (508) 486-5677 - Mailing address
-
Po Box 415348
Boston, MA 022415348
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- March 26, 2021
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #269608
- Medicaid
- MA #110115436A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710305289. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
115
Distinct HCPCS
3
Medicare allowed
$11,617
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 59 | 36 | $81 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 37 | 26 | $123 | |
99239 |
Hospital discharge day management, more than 30 minutes | 19 | 19 | $120 |
In context: peer comparison
Among 114 peers in Worcester Internal Medicine Physician, average services per provider: 102. This provider delivers 1.1× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Gregory Leslie's medical specialty?
Dr. Gregory Leslie practices Internal Medicine Physician in Worcester, MA.
Where does Dr. Gregory Leslie practice?
Dr. Gregory Leslie practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5083348515.
What is Dr. Gregory Leslie's NPI?
Dr. Gregory Leslie's National Provider Identifier (NPI) is 1710305289, issued by NPPES.
Does Dr. Gregory Leslie accept Medicare assignment?
Yes. Dr. Gregory Leslie accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Leslie 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.