Doctor profile · Federal record
Dr. William Gassmann, MS RN NPP
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Clifton Springs, NY
- NPI 1033390885
- Accepts Medicare
- MIPS 85.3 / 100 · 2023
- 20 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2 Coulter RD
Clifton Springs, NY 144321122
(315) 462-1050
fax (315) 462-0145 - Mailing address
-
315 Science Parkway, University of Rochester Strong Memorial Hospital
Rochester, NY 14620
Credentials & registration
- NPI registered
- November 2007 — 19 yrs on file
- Profile last updated
- February 19, 2025
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State licenses (2)
- New York #401059 · New York #4929851
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033390885. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
212
Distinct HCPCS
2
Medicare allowed
$11,251
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 199 | 64 | $55 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 13 | 13 | $29 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 106. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$18
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Neurocrine Biosciences, Inc. | 1 | $18.19 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,986
Patients
306
Total drug cost
$63,817
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Bupropion Xl (Bupropion Hcl) | Brand | 204 | 30 | $4,622 |
| Trazodone Hcl | Generic | 172 | 37 | $4,132 |
| Aripiprazole | Generic | 171 | 26 | $17,220 |
| Quetiapine Fumarate | Generic | 162 | 22 | $4,470 |
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 154 | 21 | $3,575 |
| Lamotrigine | Generic | 138 | 23 | $2,027 |
| Clonazepam | Generic | 132 | 23 | $1,388 |
| Sertraline Hcl | Generic | 131 | 21 | $1,436 |
| Risperidone | Generic | 119 | 18 | $1,348 |
| Gabapentin | Generic | 117 | 18 | $4,291 |
Hospital affiliations
Frequently asked questions
What is Dr. William Gassmann's medical specialty?
Dr. William Gassmann practices Psychiatric/Mental Health Nurse Practitioner in Clifton Springs, NY.
Where does Dr. William Gassmann practice?
Dr. William Gassmann practices at 2 Coulter RD, Clifton Springs, NY 144321122. Office phone: 3154621050.
What is Dr. William Gassmann's NPI?
Dr. William Gassmann's National Provider Identifier (NPI) is 1033390885, issued by NPPES.
Does Dr. William Gassmann accept Medicare assignment?
Yes. Dr. William Gassmann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Gassmann 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). Source: CMS Medicare Physician & Other Practitioners file.