2026 NPPES data Registered Nurse NPI 1518503135 CRNP
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COREY CAHILL, CRNP

Registered Nurse in GUNTERSVILLE, Alabama. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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)

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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 COREY CAHILL, CRNP?

Quality data not reported

NPI registry status

Active

Issued 11/19/2019

NPI 1518503135

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

502 50% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Alabama

How Registered Nurse compares to other specialties among Alabama providers

Alabama providers

Registered Nurse share within Alabama

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Alabama

Specialty board-certification context

Estimated specialty board-certified rate — Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CAHILL 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 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%. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 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

55 ROWE DR STE B
GUNTERSVILLE, AL 35976

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%
Specialty average (est.)

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

175,652
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.

Compare Registered Nurse nationally: see state-by-state distribution →

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 175,652 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

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