Doctor profile · Federal record
Dr. Allyson Kornahrens, FNP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Smithtown, NY
- NPI 1427573138
- Accepts Medicare
- 9 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
267 E Main St
Smithtown, NY 117872874
(631) 418-8069
fax (631) 656-0470 - Additional location
-
600 Old Country RD
Garden City, NY 115302045
(516) 357-9000 - Mailing address
-
600 Old Country RD
Garden City, NY 115302045
Credentials & registration
- NPI registered
- August 2017 — 9 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- New York #342166
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427573138. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
468
Distinct HCPCS
3
Medicare allowed
$39,826
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 370 | 233 | $78 | |
99239 |
Hospital discharge day management, more than 30 minutes | 84 | 83 | $113 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 14 | 14 | $117 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 279. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$471
Transactions
7
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Neurocrine Biosciences, Inc. | 4 | $196.03 | |
| Amgen Inc. | 1 | $124.99 | |
| Genentech USA, Inc. | 1 | $121.65 | |
| Janssen Pharmaceuticals, Inc | 1 | $28.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
24
Total drug cost
$113
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 13 | 13 | $56 |
| Atorvastatin Calcium | Generic | 11 | 11 | $57 |
Frequently asked questions
What is Dr. Allyson Kornahrens's medical specialty?
Dr. Allyson Kornahrens practices Family Nurse Practitioner in Smithtown, NY.
Where does Dr. Allyson Kornahrens practice?
Dr. Allyson Kornahrens practices at 267 E Main St, Smithtown, NY 117872874. Office phone: 6314188069.
What is Dr. Allyson Kornahrens's NPI?
Dr. Allyson Kornahrens's National Provider Identifier (NPI) is 1427573138, issued by NPPES.
Does Dr. Allyson Kornahrens accept Medicare assignment?
Yes. Dr. Allyson Kornahrens accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allyson Kornahrens commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.