NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1518503135 CRNP
Verify on CMS → Corey Cahill, CRNP
Registered Nurse in Guntersville, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 177,204 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
502
Medicare Part D claims · 211 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.0K
44 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
Corey Cahill, CRNP filed 502 Medicare Part D claims in 2023 as a Registered Nurse in Guntersville, Alabama, prescribing 96% generic.
- 502
- Part D claims, 2023
- 96%
- generic prescribing
- $1.0K
- 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.
Corey Cahill, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
502 Top 34% higher than 66% 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
What does the federal data show about Corey Cahill, CRNP?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
502 50% vs specialty avg
Specialty distribution in Alabama
How Registered Nurse compares to other specialties among Alabama 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).
Corey Cahill, CRNP appears in the CMS NPPES registry as a Registered Nurse provider holding CRNP credentials at 55 ROWE DR STE B, Guntersville, AL, 35976, with a listed phone of (256) 571-8450. NPI 1518503135 was issued on 11/19/2019.
Medicare Part D records for calendar year 2023 show 502 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $18K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 5.8%.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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 | 1518503135 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | CRNP |
| Gender | Male |
| NPI Issued | 11/19/2019 |
Hospital and facility affiliations
Facilities where Corey Cahill, CRNP 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.
Masdon Ent And Facial Plastic Surgery, LLC
Guntersville, AL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Corey Cahill, CRNP. Source: openpaymentsdata.cms.gov.
Total received
$1.0K
Largest payer
Inspire Medical Systems, 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 · Generic-heavy
Corey Cahill, CRNP - brand share 4.0%
Registered Nurse average
4% brand-name claims vs 96% generic, on 502 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.
502
Total Claims
$18K
Total Drug Cost
211
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 651
- Total Day Supply
- 15,216
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $14K
- Opioid Claims
- 29 (5.8% rate)
- Antibiotic Claims
- 89
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 44, 65-74: 102, 75-84: 44, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Corey Cahill, CRNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ipratropium Bromide
Ipratropium Bromide
72 claims
- Omeprazole
Omeprazole
60 claims
- Cefdinir
Cefdinir
44 claims
- Fluticasone Propio…
Fluticasone Propionate
44 claims
- Pantoprazole Sodium
Pantoprazole Sodium
38 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
29 claims
- Azithromycin 23
Azithromycin
23 claims
- Meclizine Hcl 21
Meclizine Hcl
21 claims
| Drug | Claims |
|---|---|
| Ipratropium Bromide | 72 |
| Omeprazole | 60 |
| Cefdinir | 44 |
| Fluticasone Propionate | 44 |
| Pantoprazole Sodium | 38 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 29 |
| Azithromycin | 23 |
| Meclizine Hcl | 21 |
| Ciprofloxacin-Dexamethasone Ciprofloxacin Hcl/Dexameth | 18 |
| Hydrocortisone | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Corey Cahill, CRNP fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Corey Cahill, CRNP's 502 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Cahill.
Dr. McKensie Aaron
APRN, FNP-C
Brewton, AL
Dr. Lindsay Aaron-Wade
RN
Jasper, AL
Dr. Jasmine Abebe
NP
Montgomery, AL
Dr. Carrleigh Abernathy
FNP-C
Calera, AL
Chasiti Abernathy
Birmingham, AL
Compare Registered Nurse 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 Alabama medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Nurse 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Corey Cahill, CRNP's specialty? ▼
Corey Cahill, CRNP specializes in Registered Nurse and practices in Guntersville, Alabama. Credentials: CRNP.
How much does Corey Cahill, CRNP prescribe under Medicare Part D? ▼
In 2023, Corey Cahill, CRNP wrote 502 Medicare Part D claims totaling $18K in drug costs for 211 beneficiaries.
Where is Corey Cahill, CRNP located? ▼
Corey Cahill, CRNP is located at 55 ROWE DR STE B, Guntersville, AL, 35976. Phone: (256) 571-8450.
What is Corey Cahill, CRNP's NPI number? ▼
Corey Cahill, CRNP's National Provider Identifier (NPI) is 1518503135, issued on 11/19/2019.
Does Corey Cahill, CRNP prescribe more brand-name or generic drugs? ▼
Corey Cahill, CRNP's prescribing is 4% brand-name and 96% generic drugs by claim count, with $4K in brand drug costs.
Does Corey Cahill, CRNP prescribe opioids? ▼
Yes, Corey Cahill, CRNP had 29 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Corey Cahill, CRNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Corey Cahill, CRNP's most frequently prescribed drugs include Ipratropium Bromide, Omeprazole, Cefdinir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Corey Cahill, CRNP accept Medicare? ▼
Corey Cahill, CRNP appears in CMS Medicare data with 502 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Corey Cahill, CRNP's credentials? ▼
Corey Cahill, CRNP's NPI is 1518503135 with credentials CRNP. 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.
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 May 2026.