2026 NPPES data Family Nurse Practitioner NPI 1184223562 NP-C
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Anne Marie Castillo, NP-C

Family Nurse Practitioner in Las Vegas, Nevada. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 209,817 in Family 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
3K
Medicare Part D claims · 400 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$32.8
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Anne Marie Castillo, NP-C filed 3,067 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Las Vegas, Nevada, prescribing 88% generic.

3K
Part D claims, 2023
88%
generic prescribing
$32.8
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.

Anne Marie Castillo, NP-C's Medicare Part D volume vs every U.S. prescriber

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

3,067 Top 11% higher than 89% 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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 Anne Marie Castillo, NP-C?

Quality data not reported

NPI registry status

Active

Issued 10/18/2020

NPI 1184223562

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

3,067 151% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Nevada

How Family Nurse Practitioner compares to other specialties among Nevada providers

Nevada providers
Personal Care Attendant - 25.1%Personal Care Attendant25.1%Behavior Technician - 6.3%Behavior Technician6.3%Rehabilitation Practitioner - 5.6%Rehabilitation Practitioner5.6%Behavior Analyst - 4.7%Behavior Analyst4.7%Chore Provider - 4.5%Chore Provider4.5%Mental Health Counselor - 2.6%Mental Health Counselor2.6%Family Nurse Practitioner - 2%Family Nurse Practitioner2%
Largest specialties in Nevada (% of in-state 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 Family Nurse Practitioner. Verify directly:

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).

Anne Marie Castillo, NP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding NP-C credentials at 8595 S DECATUR BLVD STE 108, Las Vegas, NV, 89139, with a listed phone of (702) 948-1130. NPI 1184223562 was issued on 10/18/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Castillo 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 3,067 prescription claims written by this provider, covering 400 Medicare beneficiaries and totaling roughly $363K in drug spend, split 11% brand-name and 88% generic by claim count, with an opioid prescribing rate of 3.6%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

8595 S DECATUR BLVD STE 108
Las Vegas, NV 89139

Provider Details

NPI 1184223562
Specialty Family Nurse Practitioner
Credentials NP-C
Gender Female
NPI Issued 10/18/2020

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 Anne Marie Castillo, NP-C. Source: openpaymentsdata.cms.gov.

Total received

$33

Largest payer

Ferring Pharmaceuticals Inc.

Most common payment type

Education

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.

Brand vs generic prescribing mix · Typical

Anne Marie Castillo, NP-C - brand share 11.0%
Family Nurse Practitioner average

11% brand-name claims vs 88% generic, on 3,067 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.

3,067
Total Claims
$363K
Total Drug Cost
400
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,386
Total Day Supply
211,739
Brand vs Generic
11% brand / 88% generic
Brand Drug Cost
$336K
Generic Drug Cost
$25K
Opioid Claims
111 (3.6% rate)
Antibiotic Claims
122

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
1.99
Gender Split
59% female / 41% male
Age Distribution
<65: 27, 65-74: 143, 75-84: 180, 85+: 50

Top Prescribed Drugs (Medicare Part D)

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

What Anne Marie Castillo, NP-C 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
Rosuvastatin Calcium
230
Atorvastatin Calcium
146
Hydroxyzine Hcl
97
Levothyroxine Sodium
91
Lisinopril
75
Albuterol Sulfate Hfa
Albuterol Sulfate
73
Amlodipine Besylate
73
Fluticasone Propionate
64
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
47
Alendronate Sodium
46

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

Family Nurse Practitioner Overview

How Anne Marie Castillo, NP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Anne Marie Castillo, NP-C's 3,067 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Nevada

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

Compare Family 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 Nevada medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family 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 Anne Marie Castillo, NP-C's specialty?
Anne Marie Castillo, NP-C specializes in Family Nurse Practitioner and practices in Las Vegas, Nevada. Credentials: NP-C.
How much does Anne Marie Castillo, NP-C prescribe under Medicare Part D?
In 2023, Anne Marie Castillo, NP-C wrote 3,067 Medicare Part D claims totaling $363K in drug costs for 400 beneficiaries.
Where is Anne Marie Castillo, NP-C located?
Anne Marie Castillo, NP-C is located at 8595 S DECATUR BLVD STE 108, Las Vegas, NV, 89139. Phone: (702) 948-1130.
What is Anne Marie Castillo, NP-C's NPI number?
Anne Marie Castillo, NP-C's National Provider Identifier (NPI) is 1184223562, issued on 10/18/2020.
Does Anne Marie Castillo, NP-C prescribe more brand-name or generic drugs?
Anne Marie Castillo, NP-C's prescribing is 11% brand-name and 88% generic drugs by claim count, with $336K in brand drug costs.
Does Anne Marie Castillo, NP-C prescribe opioids?
Yes, Anne Marie Castillo, NP-C had 111 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Anne Marie Castillo, NP-C prescribe most often?
Based on 2023 Medicare Part D data, Anne Marie Castillo, NP-C's most frequently prescribed drugs include Rosuvastatin Calcium, Atorvastatin Calcium, Hydroxyzine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Anne Marie Castillo, NP-C accept Medicare?
Anne Marie Castillo, NP-C appears in CMS Medicare data with 3,067 Part D claims and 400 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Anne Marie Castillo, NP-C's credentials?
Anne Marie Castillo, NP-C's NPI is 1184223562 with credentials NP-C. 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.