Doctor profile · Federal record
Dr. Susan Trees, PMHNP
Psychiatric/Mental Health Nurse Practitioner · Registered Nurse · Central Islip, NY
- NPI 1912219841
- 16 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
159 Carleton Ave
Central Islip, NY 11722
(631) 650-2510
Credentials & registration
- NPI registered
- July 2010 — 16 yrs on file
- Profile last updated
- May 16, 2019
- Specialty taxonomy
- 363LP0808X — NUCC code
- State licenses (2)
- New York #402351 · New York #525012
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912219841. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
532
Distinct HCPCS
4
Medicare allowed
$47,205
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 369 | 53 | $85 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 72 | 27 | $52 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 68 | 17 | $123 | |
90791 |
Psychiatric diagnostic evaluation | 23 | 23 | $163 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 133. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$267
Transactions
7
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Neurocrine Biosciences, Inc. | 4 | $202.85 | |
| ABBVIE INC. | 2 | $49.16 | |
| Teva Pharmaceuticals USA, Inc. | 1 | $15.36 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,703
Patients
105
Total drug cost
$41,657
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 171 | 13 | $5,432 |
| Lorazepam | Generic | 158 | 15 | $1,330 |
| Benztropine Mesylate | Generic | 143 | 14 | $2,070 |
| Divalproex Sodium | Generic | 137 | 11 | $3,999 |
| Olanzapine | Generic | 136 | 14 | $4,000 |
| Fluoxetine Hcl | Generic | 129 | 16 | $1,809 |
| Sertraline Hcl | Generic | 122 | 0 | $1,243 |
| Aripiprazole | Generic | 111 | 0 | $14,084 |
| Risperidone | Generic | 107 | 11 | $1,170 |
| Escitalopram Oxalate | Generic | 98 | 0 | $943 |
Frequently asked questions
What is Dr. Susan Trees's medical specialty?
Dr. Susan Trees practices Psychiatric/Mental Health Nurse Practitioner in Central Islip, NY.
Where does Dr. Susan Trees practice?
Dr. Susan Trees practices at 159 Carleton Ave, Central Islip, NY 11722. Office phone: 6316502510.
What is Dr. Susan Trees's NPI?
Dr. Susan Trees's National Provider Identifier (NPI) is 1912219841, issued by NPPES.
What procedures does Dr. Susan Trees 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 99212); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.