NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1578132940 ARNP
Verify on CMS → Alec Steils, ARNP
Registered Nurse in Waterloo, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 185,440 in Registered Nurse, 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
9K
Medicare Part D claims · 910 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Alec Steils, ARNP filed 8,651 Medicare Part D claims in 2024 as a Registered Nurse in Waterloo, Iowa, prescribing 52% generic.
- 9K
- Part D claims, 2024
- 52%
- generic prescribing
- ≥97th
- 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 Alec Steils, ARNP
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 1578132940), first enumerated 06/21/2021.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 8,651 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1578132940 · Registered Nurse
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1578132940
- ENUM-RECENT 2021
- TAX-MEGA 185K Registered Nurse
- RX-MID 8,651
- BOOK-LIGHT 1,031 in Iowa
- PHOTO-ENUM Nicola Penrose, RN · 2021
Alec Steils, ARNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
8,651 ≥ 97th percentile 97% 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 Alec Steils, ARNP?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
8,651 8× vs specialty avg
Specialty distribution in Iowa
How Registered Nurse compares to other specialties among Iowa 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 Registered Nurse. 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 | 1578132940 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | ARNP |
| Gender | Male |
| NPI Issued | 06/21/2021 |
Hospital and facility affiliations
Facilities where Alec Steils, ARNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Allen Memorial Hospital Corporation
Waterloo, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Alec Steils, ARNP - brand share 48.0%
Registered Nurse average
48% brand-name claims vs 52% generic, on 8,651 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.
8,651
Total Claims
$4.1M
Total Drug Cost
910
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,248.233
- Total Day Supply
- 332,781
- Brand vs Generic
- 48% brand / 52% generic
- Brand Drug Cost
- $3.9M
- Generic Drug Cost
- $167K
- Opioid Claims
- 11 (0.1% rate)
- Antibiotic Claims
- 921
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 2.06
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 109, 65-74: 422, 75-84: 303, 85+: 76
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Alec Steils, ARNP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
1,456 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
869 claims
- Montelukast Sodium
Montelukast Sodium
767 claims
- Azithromycin
Azithromycin
638 claims
- Breztri Aerosphere
Breztri Aerosphere
620 claims
- Prednisone 562
Prednisone
562 claims
- Fluticasone Propio… 370
Fluticasone Propionate
370 claims
- Azelastine Hcl 288
Azelastine Hcl
288 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 1,456 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 869 |
| Montelukast Sodium | 767 |
| Azithromycin | 638 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 620 |
| Prednisone | 562 |
| Fluticasone Propionate | 370 |
| Azelastine Hcl | 288 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 273 |
| Ipratropium Bromide | 231 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Alec Steils, ARNP fits within the Registered Nurse landscape nationally.
185,440
Registered Nurse Providers in US
56
States with Registered Nurse
1,063
Avg Claims per Provider
Alec Steils, ARNP's 8,651 claims are above the specialty average of 1,063.
Nationwide Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Steils, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Registered Nurse Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Steils.
One of 1,031 Registered Nurse providers enrolled in Iowa, 5 are shown here.
Omar Aceviz
Davenport, IA
Jamie Ackerman
Cedar Falls, IA
Subhadra Adhikari
Iowa City, IA
Carina Aduddell
RN
Le Mars, IA
Kiara Agosto- Burgos
Iowa City, IA
Compare Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is Alec Steils, ARNP's specialty? ▼
Alec Steils, ARNP specializes in Registered Nurse and practices in Waterloo, Iowa. Credentials: ARNP.
How much does Alec Steils, ARNP prescribe under Medicare Part D? ▼
In 2024, Alec Steils, ARNP wrote 8,651 Medicare Part D claims totaling $4.1M in drug costs for 910 beneficiaries.
Where is Alec Steils, ARNP located? ▼
Alec Steils, ARNP is located at 152 W DALE ST, Waterloo, IA, 50703. Phone: (319) 235-3518.
What is Alec Steils, ARNP's NPI number? ▼
Alec Steils, ARNP's National Provider Identifier (NPI) is 1578132940, issued on 06/21/2021.
Does Alec Steils, ARNP prescribe more brand-name or generic drugs? ▼
Alec Steils, ARNP's prescribing is 48% brand-name and 52% generic drugs by claim count, with $3.9M in brand drug costs.
Does Alec Steils, ARNP prescribe opioids? ▼
Yes, Alec Steils, ARNP had 11 opioid claims in 2024 with an opioid prescribing rate of 0.1%.
How many Registered Nurse providers are there in the US? ▼
There are 185,440 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,063 Medicare Part D claims per year.
What drugs does Alec Steils, ARNP prescribe most often? ▼
Based on 2024 Medicare Part D data, Alec Steils, ARNP's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alec Steils, ARNP accept Medicare? ▼
Alec Steils, ARNP appears in CMS Medicare data with 8,651 Part D claims and 910 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alec Steils, ARNP's credentials? ▼
Alec Steils, ARNP's NPI is 1578132940 with credentials ARNP. 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.