2026 NPPES data Diabetes Educator Registered Nurse NPI 1639333784 RN
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MARGARET HAZE, RN

Diabetes Educator Registered Nurse in MOUNTAIN VIEW, California. 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

MARGARET HAZE, RN is a Diabetes Educator Registered Nurse in MOUNTAIN VIEW, California, 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 MARGARET HAZE, RN?

Quality data not reported

NPI registry status

Active

Issued 07/17/2008

NPI 1639333784

Primary specialty

Diabetes Educator Registered Nurse

Niche

2,273 US NPIs in this specialty

Specialty distribution in California

How Diabetes Educator Registered Nurse compares to other specialties among California providers

California providers

Diabetes Educator Registered Nurse share within California

1. Diabetes Educator Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Diabetes Educator Registered Nurse share within California

Specialty board-certification context

Estimated specialty board-certified rate — Diabetes Educator Registered Nurse (ABMS / AOA reference)

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

Est. board-certified rate (Diabetes Educator Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Diabetes Educator 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).

MARGARET HAZE, RN appears in the CMS NPPES registry as a Diabetes Educator Registered Nurse provider holding RN credentials at 1734 W EL CAMINO REAL APT 5, MOUNTAIN VIEW, CA, 94040, with a listed phone of (650) 279-0364. NPI 1639333784 was issued on 07/17/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAZE 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 Diabetes Educator Registered Nurse providers operate outside Part D entirely.

Diabetes Educator Registered Nurse is a narrow specialty nationwide, with 2,273 enrolled providers across 55 states and an average of 1,296 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

1734 W EL CAMINO REAL APT 5
MOUNTAIN VIEW, CA 94040

Provider Details

NPI 1639333784
Specialty Diabetes Educator Registered Nurse
Credentials RN
Gender Female
NPI Issued 07/17/2008

License & disciplinary context — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to MARGARET HAZE, RN. To verify MARGARET HAZE, RN's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Diabetes Educator Registered Nurse Overview

How MARGARET HAZE, RN fits within the Diabetes Educator Registered Nurse landscape nationally.

2,273
Diabetes Educator Registered Nurse Providers in US
55
States with Diabetes Educator Registered Nurse
1,296
Avg Claims per Provider

Nearby Diabetes Educator Registered Nurse Providers in California

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

Compare Diabetes Educator Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARGARET HAZE, RN's specialty?
MARGARET HAZE, RN specializes in Diabetes Educator Registered Nurse and practices in MOUNTAIN VIEW, California. Credentials: RN.
Where is MARGARET HAZE, RN located?
MARGARET HAZE, RN is located at 1734 W EL CAMINO REAL APT 5, MOUNTAIN VIEW, CA, 94040. Phone: (650) 279-0364.
What is MARGARET HAZE, RN's NPI number?
MARGARET HAZE, RN's National Provider Identifier (NPI) is 1639333784, issued on 07/17/2008.
How many Diabetes Educator Registered Nurse providers are there in the US?
There are 2,273 Diabetes Educator Registered Nurse providers across 55 states in the US. The average Diabetes Educator Registered Nurse provider writes 1,296 Medicare Part D claims per year.
Does MARGARET HAZE, RN accept Medicare?
MARGARET HAZE, RN appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGARET HAZE, RN's credentials?
MARGARET HAZE, RN's NPI is 1639333784 with credentials RN. 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