Registry data as of Aug 27, 2026
2026 NPPES data Ambulatory Care Registered Nurse NPI 1437095171 DNP
Verify on CMS →

Mercedez Vandecasteele, DNP

Ambulatory Care Registered Nurse in Chicago, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,522 in Ambulatory Care Registered Nurse, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.

What the federal data shows

Mercedez Vandecasteele, DNP is an Ambulatory Care Registered Nurse in Chicago, Illinois, listed in the federal CMS National Provider Identifier registry.

#224
Ambulatory Care Registered Nurse rank among Illinois specialties

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Mercedez Vandecasteele, DNP

Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1437095171), first enumerated 04/27/2026.

    Source: CMS NPPES

  • Not in federal data

    Medicare Part D participation

    No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).

    Source: CMS Part D Prescriber PUF

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Vandecasteele with other Ambulatory Care Registered Nurse providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in Illinois

Other specialties in Chicago: Student in an Organized Health Care Education/Training Program (5,297) · Clinical Social Worker (4,054) · Internal Medicine Physician (3,291) · Physical Therapist (2,616)

CMS NPPES provider registry desk

NPI 1437095171 · Ambulatory Care Registered Nurse

NPI-10 · ENUM-NEW · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1437095171
  • ENUM-NEW 2026
  • TAX-NARROW 3,522
  • RX-NONE No Part D
  • BOOK-THIN 48 in Illinois
  • PHOTO-ENUM Whitney Miller · 2026

What does the federal data show about Mercedez Vandecasteele, DNP?

Quality data not reported

NPI registry status

Active

Issued 04/27/2026

NPI 1437095171

Primary specialty

Ambulatory Care Registered Nurse

Niche

3,522 US NPIs in this specialty

Specialty distribution in Illinois

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

Illinois providers
Clinical Social Worker5.2%Physical Therapist4.9%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.1%Pharmacist4.1%Ambulatory Care Registered N…0%
Largest specialties in Illinois (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Ambulatory Care Registered Nurse. Verify directly:

How MIPS and board certification work

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).

Practice Address

1620 W HARRISON ST
Chicago, IL 60612

Provider Details

NPI 1437095171
Specialty Ambulatory Care Registered Nurse
Credentials DNP
Gender Female
NPI Issued 04/27/2026

Ambulatory Care Registered Nurse Overview

How Mercedez Vandecasteele, DNP fits within the Ambulatory Care Registered Nurse landscape nationally.

3,522
Ambulatory Care Registered Nurse Providers in US
53
States with Ambulatory Care Registered Nurse
799
Avg Claims per Provider

Nationwide Ambulatory Care Registered Nurse peers with similar MIPS or enrollment year

Two federal-record peer sets for Vandecasteele, both outside Illinois so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2026)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Ambulatory Care Registered Nurse Providers in Illinois

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

One of 48 Ambulatory Care Registered Nurse providers enrolled in Illinois, 11 are shown on this page.

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

Frequently Asked Questions

What is Mercedez Vandecasteele, DNP's specialty? ▼
Mercedez Vandecasteele, DNP specializes in Ambulatory Care Registered Nurse and practices in Chicago, Illinois. Credentials: DNP.
Where is Mercedez Vandecasteele, DNP located? ▼
Mercedez Vandecasteele, DNP is located at 1620 W HARRISON ST, Chicago, IL, 60612. Phone: (309) 236-6936.
What is Mercedez Vandecasteele, DNP's NPI number? ▼
Mercedez Vandecasteele, DNP's National Provider Identifier (NPI) is 1437095171, issued on 04/27/2026.
How many Ambulatory Care Registered Nurse providers are there in the US? ▼
There are 3,522 Ambulatory Care Registered Nurse providers across 53 states in the US. The average Ambulatory Care Registered Nurse provider writes 799 Medicare Part D claims per year.
Does Mercedez Vandecasteele, DNP accept Medicare? ▼
Mercedez Vandecasteele, DNP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mercedez Vandecasteele, DNP's credentials? ▼
Mercedez Vandecasteele, DNP's NPI is 1437095171 with credentials DNP. 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

View source datasets and methodology notes
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 August 2026 (NPPES) / 2024 (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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2026.