2026 NPPES data Women's Health Nurse Practitioner NPI 1407920192 NP BSN MSN
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Ellen Olaivar, NP BSN MSN

Women's Health Nurse Practitioner in Torrance, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 9,452 in Women's Health Nurse Practitioner, 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.
Prescribing volume
2K
Medicare Part D claims · 169 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$53.05
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ellen Olaivar, NP BSN MSN filed 1,758 Medicare Part D claims in 2023 as a Women's Health Nurse Practitioner in Torrance, California, prescribing 88% generic.

2K
Part D claims, 2023
88%
generic prescribing
$53.05
industry payments (Sunshine Act)

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.

Ellen Olaivar, NP BSN MSN's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,758 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Ellen Olaivar, NP BSN MSN?

Quality data not reported

NPI registry status

Active

Issued 11/17/2006

NPI 1407920192

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

1,758 vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in California

How Women's Health Nurse Practitioner compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Women's Health Nurse Practitioner — 0.1%Women's Health Nurse Practitioner0.1%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Women's Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Women's Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Women's Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Women's Health Nurse Practitioner) — 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).

Ellen Olaivar, NP BSN MSN appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding NP BSN MSN credentials at 1124 W CARSON ST # N28, Torrance, CA, 90502, with a listed phone of (310) 641-0443. NPI 1407920192 was issued on 11/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Olaivar 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 records for calendar year 2023 show 1,758 prescription claims written by this provider, covering 169 Medicare beneficiaries and totaling roughly $172K in drug spend, split 11% brand-name and 88% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

1124 W CARSON ST # N28
Torrance, CA 90502

Provider Details

NPI 1407920192
Specialty Women's Health Nurse Practitioner
Credentials NP BSN MSN
Gender Female
NPI Issued 11/17/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ellen Olaivar, NP BSN MSN. Source: openpaymentsdata.cms.gov.

Total received

$53

Largest payer

GlaxoSmithKline, LLC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 Ellen Olaivar, NP BSN MSN. To verify Ellen Olaivar, NP BSN MSN'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.

Brand vs generic prescribing mix · Typical

Ellen Olaivar, NP BSN MSN — brand share 11.0%
Women's Health Nurse Practitioner average

11% brand-name claims vs 88% generic, on 1,758 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,758
Total Claims
$172K
Total Drug Cost
169
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,837
Total Day Supply
111,044
Brand vs Generic
11% brand / 88% generic
Brand Drug Cost
$126K
Generic Drug Cost
$44K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
68.7 years
Avg HCC Risk Score
0.95
Gender Split
62% female / 38% male
Age Distribution
<65: 19, 65-74: 131, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Ellen Olaivar, NP BSN MSN prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
137
Amlodipine Besylate
103
Metformin Hcl
72
Ibuprofen
70
Gabapentin
66
Losartan Potassium
65
Omeprazole
58
Diclofenac Sodium
45
Hydrochlorothiazide
45
Enalapril Maleate
43

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Women's Health Nurse Practitioner Overview

How Ellen Olaivar, NP BSN MSN fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

Ellen Olaivar, NP BSN MSN's 1,758 claims are above the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in California

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

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Women's Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Ellen Olaivar, NP BSN MSN's specialty?
Ellen Olaivar, NP BSN MSN specializes in Women's Health Nurse Practitioner and practices in Torrance, California. Credentials: NP BSN MSN.
How much does Ellen Olaivar, NP BSN MSN prescribe under Medicare Part D?
In 2023, Ellen Olaivar, NP BSN MSN wrote 1,758 Medicare Part D claims totaling $172K in drug costs for 169 beneficiaries.
Where is Ellen Olaivar, NP BSN MSN located?
Ellen Olaivar, NP BSN MSN is located at 1124 W CARSON ST # N28, Torrance, CA, 90502. Phone: (310) 641-0443.
What is Ellen Olaivar, NP BSN MSN's NPI number?
Ellen Olaivar, NP BSN MSN's National Provider Identifier (NPI) is 1407920192, issued on 11/17/2006.
Does Ellen Olaivar, NP BSN MSN prescribe more brand-name or generic drugs?
Ellen Olaivar, NP BSN MSN's prescribing is 11% brand-name and 88% generic drugs by claim count, with $126K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does Ellen Olaivar, NP BSN MSN prescribe most often?
Based on 2023 Medicare Part D data, Ellen Olaivar, NP BSN MSN's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ellen Olaivar, NP BSN MSN accept Medicare?
Ellen Olaivar, NP BSN MSN appears in CMS Medicare data with 1,758 Part D claims and 169 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ellen Olaivar, NP BSN MSN's credentials?
Ellen Olaivar, NP BSN MSN's NPI is 1407920192 with credentials NP BSN MSN. 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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

Compiled from official public sources by the PlainDoctor editorial team.