Doctor profile · Federal record
Dr. Leonidas Diamantopoulos, MD
Internal Medicine Physician (CMS: Hospitalist) · Hematology & Oncology Physician · Staten Island, NY
- NPI 1295358273
- Accepts Medicare
- 10 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
375 Seguine Ave
Staten Island, NY 103093932
(718) 226-9000 - Additional location
-
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511 - Additional location
-
3459 5Th Ave Ste 9
Pittsburgh, PA 152133236
(412) 692-4888
Credentials & registration
- NPI registered
- May 2020 — 6 yrs on file
- Profile last updated
- October 8, 2024
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- New York #329062 · Minnesota #73326
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295358273. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
40
Distinct HCPCS
2
Medicare allowed
$6,731
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99205 |
New patient office or other outpatient visit, 60-74 minutes | 20 | 20 | $212 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 20 | 17 | $124 |
In context: peer comparison
Among 93 peers in this city , average services per provider: 156. This provider delivers 0.3× the peer median.Frequently asked questions
What is Dr. Leonidas Diamantopoulos's medical specialty?
Dr. Leonidas Diamantopoulos practices Internal Medicine Physician in Staten Island, NY.
Where does Dr. Leonidas Diamantopoulos practice?
Dr. Leonidas Diamantopoulos practices at 375 Seguine Ave, Staten Island, NY 103093932. Office phone: 7182269000.
What is Dr. Leonidas Diamantopoulos's NPI?
Dr. Leonidas Diamantopoulos's National Provider Identifier (NPI) is 1295358273, issued by NPPES.
Does Dr. Leonidas Diamantopoulos accept Medicare assignment?
Yes. Dr. Leonidas Diamantopoulos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leonidas Diamantopoulos commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.