2026 NPPES data Ambulatory Care Registered Nurse NPI 1861473662 FNP
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SUSAN DE GRUCHY, FNP

Ambulatory Care Registered Nurse in BOSTON, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
71
Medicare Part D claims · 46 beneficiaries · Ambulatory Care Registered Nurse avg: 695
What the federal data reveals: SUSAN DE GRUCHY, FNP is a Ambulatory Care Registered Nurse ([object Object]) practicing in BOSTON, Massachusetts with a Medicare Part D prescribing footprint of 71 claims across 46 beneficiaries .

What stands out: SUSAN DE GRUCHY, FNP filed 71 Medicare Part D claims in 2023 across BOSTON, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SUSAN DE GRUCHY, FNP at a glance

Quality data not reported

NPI registry status

Active

Issued 11/09/2005

NPI 1861473662

Primary specialty

Ambulatory Care Registered Nurse

Niche

3,123 US NPIs in this specialty

Medicare Part D claims

71 90% vs specialty avg

2023 prescription claims

Specialty avg: 695

Specialty distribution in Massachusetts

How Ambulatory Care Registered Nurse compares to other specialties among Massachusetts providers

Massachusetts providers

Ambulatory Care Registered Nurse share within Massachusetts

1. Ambulatory Care Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ambulatory Care Registered Nurse share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Ambulatory Care Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ambulatory Care Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Ambulatory Care Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ambulatory Care Registered Nurse) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

SUSAN DE GRUCHY, FNP is a Ambulatory Care Registered Nurse provider practicing in BOSTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP. NPI: 1861473662. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SUSAN DE GRUCHY, FNP appears in the CMS NPPES registry as a Ambulatory Care Registered Nurse provider holding FNP credentials at 332 HANOVER ST, BOSTON, MA, 02113, with a listed phone of (617) 643-8000. NPI 1861473662 was issued on 11/09/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DE GRUCHY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 71 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $5K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Ambulatory Care Registered Nurse is a narrow specialty nationwide, with 3,123 enrolled providers across 53 states and an average of 695 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

332 HANOVER ST
BOSTON, MA 02113

Provider Details

NPI 1861473662
Specialty Ambulatory Care Registered Nurse
Credentials FNP
Gender Female
NPI Issued 11/09/2005

Hospital and facility affiliations

Facilities where SUSAN DE GRUCHY, FNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC
BOSTON, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to SUSAN DE GRUCHY, FNP. To verify SUSAN DE GRUCHY, FNP's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

71
Total Claims
$5K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
78
Total Day Supply
1,200
Generic Drug Cost
$3K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
2.08
Gender Split
50% female / 50% male

Ambulatory Care Registered Nurse Overview

How SUSAN DE GRUCHY, FNP fits within the Ambulatory Care Registered Nurse landscape nationally.

3,123
Ambulatory Care Registered Nurse Providers in US
53
States with Ambulatory Care Registered Nurse
695
Avg Claims per Provider

SUSAN DE GRUCHY, FNP's 71 claims are below the specialty average of 695.

Nearby Ambulatory Care Registered Nurse Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as DE GRUCHY.

Compare Ambulatory Care Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUSAN DE GRUCHY, FNP's specialty?
SUSAN DE GRUCHY, FNP specializes in Ambulatory Care Registered Nurse and practices in BOSTON, Massachusetts. Credentials: FNP.
How much does SUSAN DE GRUCHY, FNP prescribe under Medicare Part D?
In 2023, SUSAN DE GRUCHY, FNP wrote 71 Medicare Part D claims totaling $5K in drug costs for 46 beneficiaries.
Where is SUSAN DE GRUCHY, FNP located?
SUSAN DE GRUCHY, FNP is located at 332 HANOVER ST, BOSTON, MA, 02113. Phone: (617) 643-8000.
What is SUSAN DE GRUCHY, FNP's NPI number?
SUSAN DE GRUCHY, FNP's National Provider Identifier (NPI) is 1861473662, issued on 11/09/2005.
How many Ambulatory Care Registered Nurse providers are there in the US?
There are 3,123 Ambulatory Care Registered Nurse providers across 53 states in the US. The average Ambulatory Care Registered Nurse provider writes 695 Medicare Part D claims per year.
Does SUSAN DE GRUCHY, FNP accept Medicare?
SUSAN DE GRUCHY, FNP appears in CMS Medicare data with 71 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN DE GRUCHY, FNP's credentials?
SUSAN DE GRUCHY, FNP's NPI is 1861473662 with credentials FNP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology