2026 NPPES data Registered Dietitian NPI 1629446786 R.D., L.D.N.
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SUZANNE BERKLEY, R.D., L.D.N.

Registered Dietitian in PLAINFIELD, Illinois. 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 shows

SUZANNE BERKLEY, R.D., L.D.N. is a Registered Dietitian in PLAINFIELD, Illinois, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about SUZANNE BERKLEY, R.D., L.D.N.?

Quality data not reported

NPI registry status

Active

Issued 09/07/2015

NPI 1629446786

Primary specialty

Registered Dietitian

High-volume

64,100 US NPIs in this specialty

Specialty distribution in Illinois

How Registered Dietitian compares to other specialties among Illinois providers

Illinois providers

Registered Dietitian share within Illinois

1. Registered Dietitian42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Dietitian share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Registered Dietitian (ABMS / AOA reference)

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

Est. board-certified rate (Registered Dietitian) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Registered Dietitian) — 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).

SUZANNE BERKLEY, R.D., L.D.N. appears in the CMS NPPES registry as a Registered Dietitian provider holding R.D., L.D.N. credentials at 25021 W PRAIRIE GROVE DR, PLAINFIELD, IL, 60585, with a listed phone of (847) 507-3757. NPI 1629446786 was issued on 09/07/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERKLEY 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 Registered Dietitian providers operate outside Part D entirely.

Registered Dietitian is a high-volume specialty nationwide, with 64,100 enrolled providers across 55 states and an average of 696 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

25021 W PRAIRIE GROVE DR
PLAINFIELD, IL 60585

Provider Details

NPI 1629446786
Specialty Registered Dietitian
Credentials R.D., L.D.N.
Gender Female
NPI Issued 09/07/2015

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to SUZANNE BERKLEY, R.D., L.D.N.. To verify SUZANNE BERKLEY, R.D., L.D.N.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Registered Dietitian Overview

How SUZANNE BERKLEY, R.D., L.D.N. fits within the Registered Dietitian landscape nationally.

64,100
Registered Dietitian Providers in US
55
States with Registered Dietitian
696
Avg Claims per Provider

Nearby Registered Dietitian Providers in Illinois

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

Compare Registered Dietitian nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUZANNE BERKLEY, R.D., L.D.N.'s specialty?
SUZANNE BERKLEY, R.D., L.D.N. specializes in Registered Dietitian and practices in PLAINFIELD, Illinois. Credentials: R.D., L.D.N..
Where is SUZANNE BERKLEY, R.D., L.D.N. located?
SUZANNE BERKLEY, R.D., L.D.N. is located at 25021 W PRAIRIE GROVE DR, PLAINFIELD, IL, 60585. Phone: (847) 507-3757.
What is SUZANNE BERKLEY, R.D., L.D.N.'s NPI number?
SUZANNE BERKLEY, R.D., L.D.N.'s National Provider Identifier (NPI) is 1629446786, issued on 09/07/2015.
How many Registered Dietitian providers are there in the US?
There are 64,100 Registered Dietitian providers across 55 states in the US. The average Registered Dietitian provider writes 696 Medicare Part D claims per year.
Does SUZANNE BERKLEY, R.D., L.D.N. accept Medicare?
SUZANNE BERKLEY, R.D., L.D.N. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUZANNE BERKLEY, R.D., L.D.N.'s credentials?
SUZANNE BERKLEY, R.D., L.D.N.'s NPI is 1629446786 with credentials R.D., L.D.N.. 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