2026 NPPES data Nurse Practitioner NPI 1598856866 APN
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DEBORAH FATTORI, APN

Nurse Practitioner in WILMINGTON, Delaware. 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.
What the federal data reveals: DEBORAH FATTORI, APN is a Nurse Practitioner ([object Object]) practicing in WILMINGTON, Delaware .

What stands out: DEBORAH FATTORI, APN specializes in Nurse Practitioner and practices in WILMINGTON, Delaware, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

DEBORAH FATTORI, APN at a glance

Quality data not reported

NPI registry status

Active

Issued 09/28/2006

NPI 1598856866

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Specialty distribution in Delaware

How Nurse Practitioner compares to other specialties among Delaware providers

Delaware providers

Nurse Practitioner share within Delaware

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within Delaware

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — 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).

DEBORAH FATTORI, APN is a Nurse Practitioner provider practicing in WILMINGTON, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APN. NPI: 1598856866. 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.

DEBORAH FATTORI, APN appears in the CMS NPPES registry as a Nurse Practitioner provider holding APN credentials at A.I. DUPONT HOSPITAL FOR CHILDREN, WILMINGTON, DE, 19803, with a listed phone of (302) 651-4000. NPI 1598856866 was issued on 09/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FATTORI 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Nurse Practitioner providers operate outside Part D entirely.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

A.I. DUPONT HOSPITAL FOR CHILDREN
WILMINGTON, DE 19803

Provider Details

NPI 1598856866
Specialty Nurse Practitioner
Credentials APN
Gender Female
NPI Issued 09/28/2006

Nurse Practitioner Overview

How DEBORAH FATTORI, APN fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

Nearby Nurse Practitioner Providers in Delaware

Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as FATTORI.

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is DEBORAH FATTORI, APN's specialty?
DEBORAH FATTORI, APN specializes in Nurse Practitioner and practices in WILMINGTON, Delaware. Credentials: APN.
Where is DEBORAH FATTORI, APN located?
DEBORAH FATTORI, APN is located at A.I. DUPONT HOSPITAL FOR CHILDREN, WILMINGTON, DE, 19803. Phone: (302) 651-4000.
What is DEBORAH FATTORI, APN's NPI number?
DEBORAH FATTORI, APN's National Provider Identifier (NPI) is 1598856866, issued on 09/28/2006.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
Does DEBORAH FATTORI, APN accept Medicare?
DEBORAH FATTORI, APN appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DEBORAH FATTORI, APN's credentials?
DEBORAH FATTORI, APN's NPI is 1598856866 with credentials APN. 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.
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