NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1619346038 CNP
Verify on CMS → Kay Gianantonio, CNP
Adult Health Nurse Practitioner in North Myrtle Beach, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,519 in Adult Health 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
6K
Medicare Part D claims · 415 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.9/100
▲ 7 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Kay Gianantonio, CNP reported a CMS MIPS final score of 90.9/100 - above the 83.5 national average - and filed 5,663 Medicare Part D claims in 2023.
- 90.9/100
- MIPS score · +7 vs avg
- 6K
- Part D claims, 2023
- 86%
- generic prescribing
- ≥58th
- pct among measured MIPS (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.
CMS NPPES provider registry desk
NPI 1619346038 · Adult Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · MIPS-ABOVE · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1619346038
- ENUM-MID 2015
- TAX-MID 30K Adult Health
- MIPS-ABOVE 90.9/100
- RX-MID 5,663
- BOOK-THIN 375 in South Carolina
- PHOTO-FINISH Kylene Camilletti · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Gianantonio · th…
Gianantonio · this provider
90.9 MIPS pts
- Laura Eiseman · …
Laura Eiseman
90.9 MIPS pts
- Kylene Camillett…
Kylene Camilletti
90.9 MIPS pts
- Randall Cassidy …
Randall Cassidy
90.9 MIPS pts
- Judith Deschamps…
Judith Deschamps
90.9 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Kay Gianantonio, CNP's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
91 ≥ 58th percentile 58% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Kay Gianantonio, CNP sits
This provider among adult health nurse practitioner peers
Across the 4,201 adult health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Kay Gianantonio, CNP writes more Part D claims than 98% of them and scores higher on MIPS quality than 62% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one adult health nurse practitioner peer from a representative sample of 60; the gold marker is Kay Gianantonio, CNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Kay Gianantonio, CNP?
High performer (top quartile)Primary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
5,663 372% vs specialty avg
MIPS final score
90.9/100 7.4 pts vs avg
Specialty distribution in South Carolina
How Adult Health Nurse Practitioner compares to other specialties among South Carolina providers
Medicare quality performance, MIPS
Kay Gianantonio, CNP's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average
- MIPS Final Score
- 90.9/100
- vs 83.5 national avg · 2023 performance year
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 | 1619346038 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | CNP |
| Gender | Female |
| NPI Issued | 09/15/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.9046
Final Score
Measured-score avg: 83.5
81.8092
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Kay Gianantonio, CNP 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.
Centerwell Senior Primary Care SC JV PC
Myrtle Beach, SC
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 · Typical
Kay Gianantonio, CNP - brand share 12.0%
Adult Health Nurse Practitioner average
12% brand-name claims vs 86% generic, on 5,663 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.
5,663
Total Claims
$603K
Total Drug Cost
415
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,183
- Total Day Supply
- 349,760
- Brand vs Generic
- 12% brand / 86% generic
- Brand Drug Cost
- $501K
- Generic Drug Cost
- $95K
- Opioid Claims
- 13 (0.2% rate)
- Antibiotic Claims
- 275
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 46, 65-74: 191, 75-84: 145, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kay Gianantonio, CNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
363 claims
- Levothyroxine Sodium
Levothyroxine Sodium
325 claims
- Lisinopril
Lisinopril
241 claims
- Amlodipine Besylate
Amlodipine Besylate
212 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
179 claims
- Losartan Potassium
Losartan Potassium
171 claims
- Omeprazole
Omeprazole
166 claims
- Potassium Chloride 134
Potassium Chloride
134 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 363 |
| Levothyroxine Sodium | 325 |
| Lisinopril | 241 |
| Amlodipine Besylate | 212 |
| Rosuvastatin Calcium | 179 |
| Losartan Potassium | 171 |
| Omeprazole | 166 |
| Potassium Chloride | 134 |
| Furosemide | 110 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 107 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Health Nurse Practitioner in SC →
All providers in South Carolina →
Compare specialties →
Adult Health Nurse Practitioner Overview
How Kay Gianantonio, CNP fits within the Adult Health Nurse Practitioner landscape nationally.
29,519
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider
Kay Gianantonio, CNP's 5,663 claims are above the specialty average of 1,201.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Gianantonio, both outside South Carolina so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (90.9 here).
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Gianantonio.
One of 375 Adult Health Nurse Practitioner providers enrolled in South Carolina, 5 are shown here.
Dr. Megan Allman
MSN, APRN, FNP-BC
West Columbia, SC
Dr. Cynthia Anderson
ANP
Charleston, SC
Dr. Julia Anderson
ARNP
Charleston, SC
Kristy Anderson
Charleston, SC
Dr. Jamie Andrews
ACNPC-AG
West Columbia, SC
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Kay Gianantonio, CNP's specialty? ▼
Kay Gianantonio, CNP specializes in Adult Health Nurse Practitioner and practices in North Myrtle Beach, South Carolina. Credentials: CNP.
How much does Kay Gianantonio, CNP prescribe under Medicare Part D? ▼
In 2023, Kay Gianantonio, CNP wrote 5,663 Medicare Part D claims totaling $603K in drug costs for 415 beneficiaries.
What is Kay Gianantonio, CNP's Medicare quality score? ▼
Kay Gianantonio, CNP has a CMS MIPS Final Score of 90.9/100 (Quality: 81.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kay Gianantonio, CNP located? ▼
Kay Gianantonio, CNP is located at 240 HIGHWAY 17 N, North Myrtle Beach, SC, 29582. Phone: (843) 310-4969.
What is Kay Gianantonio, CNP's NPI number? ▼
Kay Gianantonio, CNP's National Provider Identifier (NPI) is 1619346038, issued on 09/15/2015.
Does Kay Gianantonio, CNP prescribe more brand-name or generic drugs? ▼
Kay Gianantonio, CNP's prescribing is 12% brand-name and 86% generic drugs by claim count, with $501K in brand drug costs.
Does Kay Gianantonio, CNP prescribe opioids? ▼
Yes, Kay Gianantonio, CNP had 13 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,519 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does Kay Gianantonio, CNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Kay Gianantonio, CNP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kay Gianantonio, CNP accept Medicare? ▼
Kay Gianantonio, CNP appears in CMS Medicare data with 5,663 Part D claims and 415 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kay Gianantonio, CNP's credentials? ▼
Kay Gianantonio, CNP's NPI is 1619346038 with credentials CNP. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.