Doctor profile · Federal record
Dr. Katherine Masso, PMHNP
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Webster, MA
- NPI 1508435553
- Accepts Medicare
- MIPS 89.0 / 100 · 2023
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
340 Thompson RD
Webster, MA 015701509
(508) 943-2600 - Mailing address
-
415 Sherman Farm RD
Harrisville, RI 028301151
Credentials & registration
- NPI registered
- June 2021 — 5 yrs on file
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State license (1)
- Massachusetts #RN2268824
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1508435553. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
237
Distinct HCPCS
3
Medicare allowed
$13,995
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 134 | 26 | $68 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 83 | 20 | $42 | |
99238 |
Hospital discharge day management, 30 minutes or less | 20 | 20 | $69 |
In context: peer comparison
Among 5 peers in Webster Psychiatric/Mental Health Nurse Practitioner, average services per provider: 71. This provider delivers 3.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
126
Patients
48
Total drug cost
$1,906
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Olanzapine | Generic | 26 | 16 | $788 |
| Hydroxyzine Hcl | Generic | 24 | 18 | $411 |
| Trazodone Hcl | Generic | 22 | 14 | $184 |
| Quetiapine Fumarate | Generic | 16 | 0 | $128 |
| Lorazepam | Generic | 14 | 0 | $125 |
| Gabapentin | Generic | 13 | 0 | $214 |
| Clonidine Hcl | Generic | 11 | 0 | $57 |
Frequently asked questions
What is Dr. Katherine Masso's medical specialty?
Dr. Katherine Masso practices Psychiatric/Mental Health Nurse Practitioner in Webster, MA.
Where does Dr. Katherine Masso practice?
Dr. Katherine Masso practices at 340 Thompson RD, Webster, MA 015701509. Office phone: 5089432600.
What is Dr. Katherine Masso's NPI?
Dr. Katherine Masso's National Provider Identifier (NPI) is 1508435553, issued by NPPES.
Does Dr. Katherine Masso accept Medicare assignment?
Yes. Dr. Katherine Masso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Masso commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.