Provider Profile
Marguerite M. Guillaume, NP
Unclaimed ProfileAbout Marguerite Guillaume
Marguerite M. Guillaume, NP is a nurse practitioner based in South Weymouth, MA. Marguerite is also listed as specializing in nurse practitioner — family and nurse practitioner — psychiatric/mental health. Medicare claims data shows Marguerite provided 789 services to 454 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. The provider's National Provider Identifier (NPI) is 1982158515.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (781) 624-8928
- Email not available
Practice Locations
55 FOGG RD
South Weymouth, MA 02190
235 N Pearl St
Brockton, MA 02301
Procedures Most Often Billed to Medicare
789 services · 454 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
271 | More than most peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
254 | More often than most peers in Nurse Practitioner |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
205 | More than most peers in Nurse Practitioner |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
31 | Less often than most peers in Nurse Practitioner |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
28 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nurse practitioners in South Weymouth 8
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Other 7
Providers who graduated from the same medical school in the same year.
Common questions
What is Marguerite M. Guillaume's specialty?
Marguerite M. Guillaume is a nurse practitioner in South Weymouth, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Marguerite M. Guillaume?
Marguerite M. Guillaume is listed at 55 Fogg Rd, South Weymouth, MA 02190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Marguerite M. Guillaume?
The number on file is (781) 624-8928. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marguerite M. Guillaume?
Marguerite M. Guillaume's National Provider Identifier is 1982158515. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Marguerite M. Guillaume's education?
Marguerite M. Guillaume attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marguerite M. Guillaume have?
Marguerite M. Guillaume has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What is Marguerite M. Guillaume known for?
According to Medicare billing data, Marguerite M. Guillaume the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marguerite M. Guillaume's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marguerite M. Guillaume. If this is you, claiming it is free.
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