MRS. MARGUERITE MARIE GUILLAUME NP
NPI 1982158515
Nurse Practitioner - Psychiatric/Mental Health in South Weymouth, MA

Active since August 11, 2016PECOS EnrolledAccepts Medicare Assignment
55 FOGG RD, SOUTH WEYMOUTH, MA 02190(781) 624-8928 Get Directions Write a Review

NPPES record last updated: March 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 17, 2025, Mar 12, 2025, Aug 11, 2016 (3 updates tracked since 2016).

About Mrs. Marguerite Marie Guillaume Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. MARGUERITE MARIE GUILLAUME NP (NPI 1982158515) is an individual psychiatric/mental health provider in South Weymouth, Massachusetts, licensed in Massachusetts (2279920) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and maintains a secondary practice location in Brockton.

NPPES Registry Identity

NPI1982158515
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMRS. MARGUERITE MARIE GUILLAUMECredential: NP
Location Address55 FOGG RDSouth Weymouth, MA 02190-2432
Mailing Address55 Fogg RdSouth Weymouth, MA 02190-2432 · (617) 980-6886
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateAugust 11, 2016
Last NPPES UpdateMarch 17, 20253 updates tracked since enumeration
NPPES CertifiedMarch 17, 2025
NPI 1982158515 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License Licensed in MA · 2279920
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License RN2279920 (MA)
55 FOGG RD, South Weymouth, MA 02190

Secondary Practice Location 1

Location 1235 N Pearl StBrockton, MA 02301-1794 · Phone (508) 427-3000

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mrs. Marguerite Marie Guillaume Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284999160
PECOS Enrollment IDI20180523002560
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
271 services115 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
254 services95 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
205 services195 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
31 services21 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
28 services28 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220100
Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dietitian, Registered
55 FOGG RD
WEYMOUTH, MA 02190
Radiology (Diagnostic Radiology)
55 FOGG RD
WEYMOUTH, MA 02190
Dietitian, Registered
55 FOGG RD
WEYMOUTH, MA 02190
Dietitian, Registered
55 FOGG RD
SOUTH WEYMOUTH, MA 02190
Nurse Practitioner (Psychiatric/Mental Health)
55 FOGG RD
WEYMOUTH, MA 02190
Pediatrics
55 FOGG RD
S WEYMOUTH, MA 02190
Social Worker (Clinical)
55 FOGG RD
WEYMOUTH, MA 02190
Student in an Organized Health Care Education/Training Program
55 FOGG RD
SOUTH WEYMOUTH, MA 02190

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marguerite Guillaume's NPI number?

The NPI number for Marguerite Guillaume is 1982158515. It was assigned to this individual provider in the NPPES registry on August 11, 2016.

Where is Marguerite Guillaume located?

Marguerite Guillaume practices at 55 Fogg Rd, South Weymouth, MA 02190. The listed phone number is (781) 624-8928.

What is Marguerite Guillaume's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Marguerite Guillaume enrolled in Medicare?

Yes. Marguerite Guillaume is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Marguerite Guillaume accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Providence Health Plan list Marguerite Guillaume as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marguerite Guillaume affiliated with any hospitals?

According to CMS data, Marguerite Guillaume is affiliated with South Shore Hospital.

When was this NPI record last updated?

The NPPES record for Marguerite Guillaume was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.