2026 NPPES data Dental Hygienist NPI 1558500025 RDH, BS
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JULIE CHUN, RDH, BS

Dental Hygienist in PHOENIX, Arizona. 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

JULIE CHUN, RDH, BS is a Dental Hygienist in PHOENIX, Arizona, 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 JULIE CHUN, RDH, BS?

Quality data not reported

NPI registry status

Active

Issued 02/06/2009

NPI 1558500025

Primary specialty

Dental Hygienist

Mid-sized

15,486 US NPIs in this specialty

Specialty distribution in Arizona

How Dental Hygienist compares to other specialties among Arizona providers

Arizona providers

Dental Hygienist share within Arizona

1. Dental Hygienist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dental Hygienist share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Dental Hygienist (ABMS / AOA reference)

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

Est. board-certified rate (Dental Hygienist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Dental Hygienist) — 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).

JULIE CHUN, RDH, BS appears in the CMS NPPES registry as a Dental Hygienist provider holding RDH, BS credentials at 4944 E SIESTA DR UNIT 3, PHOENIX, AZ, 85044, with a listed phone of (951) 809-2457. NPI 1558500025 was issued on 02/06/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHUN 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 Dental Hygienist providers operate outside Part D entirely.

Dental Hygienist is a mid-sized specialty nationwide, with 15,486 enrolled providers across 55 states and an average of 114 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

4944 E SIESTA DR UNIT 3
PHOENIX, AZ 85044

Provider Details

NPI 1558500025
Specialty Dental Hygienist
Credentials RDH, BS
Gender Female
NPI Issued 02/06/2009

Dental Hygienist Overview

How JULIE CHUN, RDH, BS fits within the Dental Hygienist landscape nationally.

15,486
Dental Hygienist Providers in US
55
States with Dental Hygienist
114
Avg Claims per Provider

Nearby Dental Hygienist Providers in Arizona

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

Compare Dental Hygienist nationally: see state-by-state distribution →

Frequently Asked Questions

What is JULIE CHUN, RDH, BS's specialty?
JULIE CHUN, RDH, BS specializes in Dental Hygienist and practices in PHOENIX, Arizona. Credentials: RDH, BS.
Where is JULIE CHUN, RDH, BS located?
JULIE CHUN, RDH, BS is located at 4944 E SIESTA DR UNIT 3, PHOENIX, AZ, 85044. Phone: (951) 809-2457.
What is JULIE CHUN, RDH, BS's NPI number?
JULIE CHUN, RDH, BS's National Provider Identifier (NPI) is 1558500025, issued on 02/06/2009.
How many Dental Hygienist providers are there in the US?
There are 15,486 Dental Hygienist providers across 55 states in the US. The average Dental Hygienist provider writes 114 Medicare Part D claims per year.
Does JULIE CHUN, RDH, BS accept Medicare?
JULIE CHUN, RDH, BS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JULIE CHUN, RDH, BS's credentials?
JULIE CHUN, RDH, BS's NPI is 1558500025 with credentials RDH, BS. 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