2026 NPPES data Occupational Health Registered Nurse NPI 1164655627 RN, MS
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DIANE MOOREFIELD, RN, MS

Occupational Health Registered Nurse in BELAIR, Maryland. 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: DIANE MOOREFIELD, RN, MS is a Occupational Health Registered Nurse ([object Object]) practicing in BELAIR, Maryland .

What stands out: DIANE MOOREFIELD, RN, MS specializes in Occupational Health Registered Nurse and practices in BELAIR, Maryland, 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.

DIANE MOOREFIELD, RN, MS at a glance

Quality data not reported

NPI registry status

Active

Issued 09/01/2009

NPI 1164655627

Primary specialty

Occupational Health Registered Nurse

Rare

342 US NPIs in this specialty

Specialty distribution in Maryland

How Occupational Health Registered Nurse compares to other specialties among Maryland providers

Maryland providers

Occupational Health Registered Nurse share within Maryland

1. Occupational Health Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Occupational Health Registered Nurse share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Occupational Health Registered Nurse (ABMS / AOA reference)

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

Est. board-certified rate (Occupational Health Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Occupational Health 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).

DIANE MOOREFIELD, RN, MS is a Occupational Health Registered Nurse provider practicing in BELAIR, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: RN, MS. NPI: 1164655627. 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.

DIANE MOOREFIELD, RN, MS appears in the CMS NPPES registry as a Occupational Health Registered Nurse provider holding RN, MS credentials at 1600 SCHUCKS RD, BELAIR, MD, 21015, with a listed phone of (410) 642-2411. NPI 1164655627 was issued on 09/01/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MOOREFIELD 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 Occupational Health Registered Nurse providers operate outside Part D entirely.

Occupational Health Registered Nurse is a narrow specialty nationwide, with 342 enrolled providers across 46 states and an average of 620 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

1600 SCHUCKS RD
BELAIR, MD 21015

Provider Details

NPI 1164655627
Specialty Occupational Health Registered Nurse
Credentials RN, MS
Gender Female
NPI Issued 09/01/2009

Occupational Health Registered Nurse Overview

How DIANE MOOREFIELD, RN, MS fits within the Occupational Health Registered Nurse landscape nationally.

342
Occupational Health Registered Nurse Providers in US
46
States with Occupational Health Registered Nurse
620
Avg Claims per Provider

Nearby Occupational Health Registered Nurse Providers in Maryland

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

Compare Occupational Health Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is DIANE MOOREFIELD, RN, MS's specialty?
DIANE MOOREFIELD, RN, MS specializes in Occupational Health Registered Nurse and practices in BELAIR, Maryland. Credentials: RN, MS.
Where is DIANE MOOREFIELD, RN, MS located?
DIANE MOOREFIELD, RN, MS is located at 1600 SCHUCKS RD, BELAIR, MD, 21015. Phone: (410) 642-2411.
What is DIANE MOOREFIELD, RN, MS's NPI number?
DIANE MOOREFIELD, RN, MS's National Provider Identifier (NPI) is 1164655627, issued on 09/01/2009.
How many Occupational Health Registered Nurse providers are there in the US?
There are 342 Occupational Health Registered Nurse providers across 46 states in the US. The average Occupational Health Registered Nurse provider writes 620 Medicare Part D claims per year.
Does DIANE MOOREFIELD, RN, MS accept Medicare?
DIANE MOOREFIELD, RN, MS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DIANE MOOREFIELD, RN, MS's credentials?
DIANE MOOREFIELD, RN, MS's NPI is 1164655627 with credentials RN, MS. 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