Doctor profile · Federal record
Dr. Alyssa Gillego, M.D.
Surgery Physician (CMS: General Surgery) · Surgery Physician · Greenwich, CT
- NPI 1659567352
- Accepts Medicare
- MIPS 71.7 / 100 · 2023
- 25 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
77 Lafayette Pl Ste 302
Greenwich, CT 068305426
(203) 863-4250
fax (203) 863-4249 - Mailing address
-
Po Box 415126
Boston, MA 022415126
Credentials & registration
- NPI registered
- September 2007 — 19 yrs on file
- Profile last updated
- November 13, 2017
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State licenses (2)
- Connecticut #056739 · New York #252073
- Medicaid
- NY #390200000X
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659567352. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
100
Distinct HCPCS
4
Medicare allowed
$25,137
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 33 | 30 | $136 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 32 | 32 | $98 | |
19301 |
Partial removal of breast | 18 | 18 | $753 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 17 | 17 | $233 |
In context: peer comparison
Among 3 peers in Greenwich Surgery Physician, average services per provider: 85. This provider delivers 1.2× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Alyssa Gillego's medical specialty?
Dr. Alyssa Gillego practices Surgery Physician in Greenwich, CT.
Where does Dr. Alyssa Gillego practice?
Dr. Alyssa Gillego practices at 77 Lafayette Pl Ste 302, Greenwich, CT 068305426. Office phone: 2038634250.
What is Dr. Alyssa Gillego's NPI?
Dr. Alyssa Gillego's National Provider Identifier (NPI) is 1659567352, issued by NPPES.
Does Dr. Alyssa Gillego accept Medicare assignment?
Yes. Dr. Alyssa Gillego accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alyssa Gillego commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214); Partial removal of breast (HCPCS 19301). Source: CMS Medicare Physician & Other Practitioners file.