Doctor profile · Federal record
Dr. Anthonia Onyemem
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Stony Brook, NY
- NPI 1891460127
- Accepts Medicare
- MIPS 91.4 / 100 · 2023
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
101 Nicolls RD
Stony Brook, NY 117944172
(631) 444-2981
fax (631) 444-6970 - Additional location
-
159 Carleton Ave
Central Islip, NY 117224172
(631) 650-2510 - Additional location
-
75 N Country RD
Port Jefferson, NY 117772119
(631) 473-1320 - Mailing address
-
12 Henry Ave
Miller Place, NY 117643218
Credentials & registration
- NPI registered
- August 2021 — 5 yrs on file
- Profile last updated
- June 30, 2022
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- New York #310314
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891460127. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
158
Distinct HCPCS
4
Medicare allowed
$17,219
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 76 | 69 | $89 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 49 | 44 | $124 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $108 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $165 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 106. This provider delivers 1.5× the peer median.Open Payments
Industry payments received
All-time total
$42
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ATRICURE, INC. | 1 | $42.06 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
272
Patients
61
Total drug cost
$6,870
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 57 | 17 | $595 |
| Atorvastatin Calcium | Generic | 46 | 22 | $595 |
| Lisinopril | Generic | 32 | 0 | $248 |
| Pantoprazole Sodium | Generic | 22 | 11 | $145 |
| Amlodipine Besylate | Generic | 19 | 0 | $101 |
| Simvastatin | Generic | 19 | 0 | $254 |
| Metformin Hcl | Generic | 15 | 0 | $70 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 14 | 0 | $172 |
| Metoprolol Succinate | Generic | 14 | 0 | $145 |
| Fluticasone Propionate | Generic | 12 | 11 | $214 |
Frequently asked questions
What is Dr. Anthonia Onyemem's medical specialty?
Dr. Anthonia Onyemem practices Adult Health Nurse Practitioner in Stony Brook, NY.
Where does Dr. Anthonia Onyemem practice?
Dr. Anthonia Onyemem practices at 101 Nicolls RD, Stony Brook, NY 117944172. Office phone: 6314442981.
What is Dr. Anthonia Onyemem's NPI?
Dr. Anthonia Onyemem's National Provider Identifier (NPI) is 1891460127, issued by NPPES.
Does Dr. Anthonia Onyemem accept Medicare assignment?
Yes. Dr. Anthonia Onyemem accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anthonia Onyemem commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.