Doctor profile · Federal record
Dr. Alyssa Williams, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Leonardtown, MD
- NPI 1528601036
- Accepts Medicare
- MIPS 79.8 / 100 · 2023
- 7 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
25500 Point Lookout RD
Leonardtown, MD 206502015
(301) 475-6227
fax (301) 475-6169
Credentials & registration
- NPI registered
- October 2019 — 7 yrs on file
- Profile last updated
- September 24, 2020
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State license (1)
- Maryland #R215583
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528601036. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
166
Distinct HCPCS
3
Medicare allowed
$12,804
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 121 | 36 | $67 | |
99239 |
Hospital discharge day management, more than 30 minutes | 26 | 24 | $98 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 19 | 18 | $111 |
In context: peer comparison
Among 1 peers in Leonardtown Psychiatric/Mental Health Nurse Practitioner, average services per provider: 55. This provider delivers 3.0× the peer median.Frequently asked questions
What is Dr. Alyssa Williams's medical specialty?
Dr. Alyssa Williams practices Psychiatric/Mental Health Nurse Practitioner in Leonardtown, MD.
Where does Dr. Alyssa Williams practice?
Dr. Alyssa Williams practices at 25500 Point Lookout RD, Leonardtown, MD 206502015. Office phone: 3014756227.
What is Dr. Alyssa Williams's NPI?
Dr. Alyssa Williams's National Provider Identifier (NPI) is 1528601036, issued by NPPES.
Does Dr. Alyssa Williams accept Medicare assignment?
Yes. Dr. Alyssa Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alyssa Williams 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); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.