NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1326445560
Verify on CMS → Elena Castro
Nurse Practitioner in Los Angeles, 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 89,808 in 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
964
Medicare Part D claims · 122 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
76%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$168.44
7 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Elena Castro filed 964 Medicare Part D claims in 2024 as a Nurse Practitioner in Los Angeles, California, prescribing 76% generic.
- 964
- Part D claims, 2024
- 76%
- generic prescribing
- $168.44
- industry payments (Sunshine Act)
- ≥74th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Elena Castro
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1326445560), first enumerated 12/03/2014.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 964 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$168.44 in reported industry payments (7 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Elena Castro's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1326445560 · Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1326445560
- ENUM-MID 2014
- TAX-MEGA 90K Nurse Practitioner
- RX-LIGHT 964
- BOOK-MID 7,120 in California
- PHOTO-ENUM Toni Morningstar, APRN · 2014
Elena Castro's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
964 ≥ 74th percentile 74% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Elena Castro?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
964 16% vs specialty avg
Specialty distribution in California
How Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1326445560 |
|---|---|
| Specialty | Nurse Practitioner |
| Gender | Female |
| NPI Issued | 12/03/2014 |
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 Elena Castro. Source: openpaymentsdata.cms.gov.
Total received
$168
Largest payer
Medtronic, Inc.
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 Elena Castro. To verify Elena Castro'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
Elena Castro - brand share 20.0%
Nurse Practitioner average
20% brand-name claims vs 76% generic, on 964 2024 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 2024.
964
Total Claims
$128K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,376.467
- Total Day Supply
- 39,691
- Brand vs Generic
- 20% brand / 76% generic
- Brand Drug Cost
- $112K
- Generic Drug Cost
- $15K
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 67.0 years
- Avg HCC Risk Score
- 4.73
- Gender Split
- 35% female / 65% male
- Age Distribution
- <65: 43, 65-74: 51, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Elena Castro prescribes most
Top Medicare Part D drugs by claim count, 2024
- Spironolactone
Spironolactone
65 claims
- Atorvastatin Calcium
Atorvastatin Calcium
53 claims
- Bumetanide
Bumetanide
50 claims
- Amiodarone Hcl
Amiodarone Hcl
47 claims
- Clopidogrel
Clopidogrel
47 claims
- Metoprolol Succinate
Metoprolol Succinate
45 claims
- Entresto
Entresto
41 claims
- Farxiga
Farxiga
39 claims
| Drug | Claims |
|---|---|
| Spironolactone | 65 |
| Atorvastatin Calcium | 53 |
| Bumetanide | 50 |
| Amiodarone Hcl | 47 |
| Clopidogrel Clopidogrel Bisulfate | 47 |
| Metoprolol Succinate | 45 |
| Entresto Sacubitril/Valsartan | 41 |
| Farxiga Dapagliflozin Propanediol | 39 |
| Pantoprazole Sodium | 30 |
| Tamsulosin Hcl | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Elena Castro fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Elena Castro's 964 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Castro, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Castro.
One of 7,120 Nurse Practitioner providers enrolled in California, 5 are shown here.
Barbara Aaronson
RN/NURSE PRACTITONER
Los Angeles, CA
Albert Aba
AGNP
San Francisco, CA
Venice Ababat
Colton, CA
Martha Ababneh
CNA
El Monte, CA
Chelsea Abad
CRNP, AGPCNP - BC
Duarte, CA
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Elena Castro's specialty? ▼
Elena Castro specializes in Nurse Practitioner and practices in Los Angeles, California.
How much does Elena Castro prescribe under Medicare Part D? ▼
In 2024, Elena Castro wrote 964 Medicare Part D claims totaling $128K in drug costs for 122 beneficiaries.
Where is Elena Castro located? ▼
Elena Castro is located at 1520 SAN PABLO ST STE 1000, Los Angeles, CA, 90033. Phone: (323) 442-5100.
What is Elena Castro's NPI number? ▼
Elena Castro's National Provider Identifier (NPI) is 1326445560, issued on 12/03/2014.
Does Elena Castro prescribe more brand-name or generic drugs? ▼
Elena Castro's prescribing is 20% brand-name and 76% generic drugs by claim count, with $112K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Elena Castro prescribe most often? ▼
Based on 2024 Medicare Part D data, Elena Castro's most frequently prescribed drugs include Spironolactone, Atorvastatin Calcium, Bumetanide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Elena Castro accept Medicare? ▼
Elena Castro appears in CMS Medicare data with 964 Part D claims and 122 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elena Castro's credentials? ▼
Elena Castro's NPI is 1326445560. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.