Doctor profile · Federal record
Dr. Marguerite Guillaume, NP
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · South Weymouth, MA
- NPI 1982158515
- Accepts Medicare
- 10 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
55 Fogg RD
South Weymouth, MA 021902432
(781) 624-8928 - Additional location
-
235 N Pearl St
Brockton, MA 023011794
(508) 427-3000
Credentials & registration
- NPI registered
- August 2016 — 10 yrs on file
- Profile last updated
- March 17, 2025
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State licenses (2)
- Massachusetts #2279920 · Massachusetts #RN2279920
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982158515. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
363
Distinct HCPCS
2
Medicare allowed
$49,361
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 254 | 245 | $147 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 109 | 104 | $110 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 77. This provider delivers 4.7× the peer median.Open Payments
Industry payments received
All-time total
$76
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, Inc | 1 | $75.72 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Marguerite Guillaume's medical specialty?
Dr. Marguerite Guillaume practices Psychiatric/Mental Health Nurse Practitioner in South Weymouth, MA.
Where does Dr. Marguerite Guillaume practice?
Dr. Marguerite Guillaume practices at 55 Fogg RD, South Weymouth, MA 021902432. Office phone: 7816248928.
What is Dr. Marguerite Guillaume's NPI?
Dr. Marguerite Guillaume's National Provider Identifier (NPI) is 1982158515, issued by NPPES.
Does Dr. Marguerite Guillaume accept Medicare assignment?
Yes. Dr. Marguerite Guillaume accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marguerite Guillaume commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.