NPI registry status
Active
2026 NPPES data Neurology with Special Qualifications in Child Neurology Physician NPI 1811991474 MD
Verify on CMS → Peter Castellanos, MD
Neurology with Special Qualifications in Child Neurology Physician in Idaho Falls, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,803 in Neurology with Special Qualifications in Child Neurology Physician, 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
180
Medicare Part D claims · Neurology with Special Qualifications in Child Neurology Physician avg: 359
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$589.58
31 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Peter Castellanos, MD filed 180 Medicare Part D claims in 2023 as a Neurology with Special Qualifications in Child Neurology Physician in Idaho Falls, Idaho, prescribing 72% generic.
- 180
- Part D claims, 2023
- 72%
- generic prescribing
- $589.58
- 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.
Peter Castellanos, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
180 35th percentile higher than 35% of 1,370,886 prescribers
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
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Board-eligible specialty (heuristic, not verified)
Peter Castellanos, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Peter Castellanos, MD?
Quality data not reportedPrimary specialty
Neurology with Special Qualifications in Child Neurology Physician
Medicare Part D claims
180 50% vs specialty avg
Specialty distribution in Idaho
How Neurology with Special Qualifications in Child Neurology Physician compares to other specialties among Idaho 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 Neurology with Special Qualifications in Child Neurology Physician. 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).
Peter Castellanos, MD appears in the CMS NPPES registry as a Neurology with Special Qualifications in Child Neurology Physician provider holding MD credentials at 2225 TETON PLZ STE B, Idaho Falls, ID, 83404, with a listed phone of (208) 529-4300. NPI 1811991474 was issued on 06/10/2005.
Medicare Part D records for calendar year 2023 show 180 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $105K in drug spend, split 28% brand-name and 72% generic by claim count.
Neurology with Special Qualifications in Child Neurology Physician is a narrow specialty nationwide, with 1,803 enrolled providers across 51 states and an average of 359 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
Provider Details
| NPI | 1811991474 |
|---|---|
| Specialty | Neurology with Special Qualifications in Child Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/10/2005 |
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 Peter Castellanos, MD. Source: openpaymentsdata.cms.gov.
Total received
$590
Largest payer
UCB, 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.
Brand vs generic prescribing mix · Above average
Peter Castellanos, MD - brand share 28.0%
Neurology with Special Qualifications in Child Neurology Physician average
28% brand-name claims vs 72% generic, on 180 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.
180
Total Claims
$105K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 182
- Total Day Supply
- 4,980
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $88K
- Generic Drug Cost
- $17K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 22.8 years
- Avg HCC Risk Score
- 0.69
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Peter Castellanos, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levetiracetam Er
Levetiracetam Er
55 claims
- Oxtellar Xr
Oxtellar Xr
32 claims
- Clonidine Hcl 15
Clonidine Hcl
15 claims
- Minocycline Hcl 15
Minocycline Hcl
15 claims
- Dextroamphetamine-… 14
Dextroamphetamine-Amphet Er
14 claims
- Duloxetine Hcl 14
Duloxetine Hcl
14 claims
- Xcopri 13
Xcopri
13 claims
- Lacosamide 12
Lacosamide
12 claims
| Drug | Claims |
|---|---|
| Levetiracetam Er Levetiracetam | 55 |
| Oxtellar Xr Oxcarbazepine | 32 |
| Clonidine Hcl | 15 |
| Minocycline Hcl | 15 |
| Dextroamphetamine-Amphet Er Dextroamphetamine/Amphetamine | 14 |
| Duloxetine Hcl | 14 |
| Xcopri Cenobamate | 13 |
| Lacosamide | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Neurology with Special Qualifications in Child Neurology Physician in ID →
All providers in Idaho →
Compare specialties →
Neurology with Special Qualifications in Child Neurology Physician Overview
How Peter Castellanos, MD fits within the Neurology with Special Qualifications in Child Neurology Physician landscape nationally.
1,803
Neurology with Special Qualifications in Child Neurology Physician Providers in US
51
States with Neurology with Special Qualifications in Child Neurology Physician
359
Avg Claims per Provider
Peter Castellanos, MD's 180 claims are below the specialty average of 359.
Nearby Neurology with Special Qualifications in Child Neurology Physician Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as Castellanos.
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 Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology with Special Qualifications in Child Neurology Physician 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.
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Frequently Asked Questions
What is Peter Castellanos, MD's specialty? ▼
Peter Castellanos, MD specializes in Neurology with Special Qualifications in Child Neurology Physician and practices in Idaho Falls, Idaho. Credentials: MD.
How much does Peter Castellanos, MD prescribe under Medicare Part D? ▼
In 2023, Peter Castellanos, MD wrote 180 Medicare Part D claims totaling $105K in drug costs for N/A beneficiaries.
Where is Peter Castellanos, MD located? ▼
Peter Castellanos, MD is located at 2225 TETON PLZ STE B, Idaho Falls, ID, 83404. Phone: (208) 529-4300.
What is Peter Castellanos, MD's NPI number? ▼
Peter Castellanos, MD's National Provider Identifier (NPI) is 1811991474, issued on 06/10/2005.
Does Peter Castellanos, MD prescribe more brand-name or generic drugs? ▼
Peter Castellanos, MD's prescribing is 28% brand-name and 72% generic drugs by claim count, with $88K in brand drug costs.
How many Neurology with Special Qualifications in Child Neurology Physician providers are there in the US? ▼
There are 1,803 Neurology with Special Qualifications in Child Neurology Physician providers across 51 states in the US. The average Neurology with Special Qualifications in Child Neurology Physician provider writes 359 Medicare Part D claims per year.
What drugs does Peter Castellanos, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Peter Castellanos, MD's most frequently prescribed drugs include Levetiracetam Er, Oxtellar Xr, Clonidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Peter Castellanos, MD accept Medicare? ▼
Peter Castellanos, MD appears in CMS Medicare data with 180 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Castellanos, MD's credentials? ▼
Peter Castellanos, MD's NPI is 1811991474 with credentials MD. 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 (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.