Doctor profile · Federal record
Dr. Michael Ghiassi, DO
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Riverhead, NY
- NPI 1255950440
- Accepts Medicare
- 7 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1 Heroes Way
Riverhead, NY 119012058
(631) 548-6000 - Additional location
-
10800 Knights RD
Philadelphia, PA 191144200
(215) 481-3915 - Mailing address
-
103 Stillwater CT
Hendersonville, TN 370754370
Credentials & registration
- NPI registered
- April 2020 — 6 yrs on file
- Profile last updated
- February 4, 2025
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- New York #322416 · Pennsylvania #OS024395
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255950440. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
306
Distinct HCPCS
2
Medicare allowed
$57,864
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 246 | 238 | $199 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 60 | 60 | $150 |
In context: peer comparison
Among 4 peers in Riverhead Internal Medicine Physician, average services per provider: 205. This provider delivers 1.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
78
Patients
15
Total drug cost
$906
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 36 | 15 | $339 |
| Losartan Potassium | Generic | 20 | 0 | $220 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 11 | 0 | $214 |
| Sertraline Hcl | Generic | 11 | 0 | $134 |
Frequently asked questions
What is Dr. Michael Ghiassi's medical specialty?
Dr. Michael Ghiassi practices Internal Medicine Physician in Riverhead, NY.
Where does Dr. Michael Ghiassi practice?
Dr. Michael Ghiassi practices at 1 Heroes Way, Riverhead, NY 119012058. Office phone: 6315486000.
What is Dr. Michael Ghiassi's NPI?
Dr. Michael Ghiassi's National Provider Identifier (NPI) is 1255950440, issued by NPPES.
Does Dr. Michael Ghiassi accept Medicare assignment?
Yes. Dr. Michael Ghiassi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Ghiassi commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.