NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1821455155 APRN
Verify on CMS → Sharon Williamson, APRN
Registered Nurse in Trenton, Florida.
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
2K
Medicare Part D claims · 359 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$28.17
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sharon Williamson, APRN filed 2,384 Medicare Part D claims in 2023 as a Registered Nurse in Trenton, Florida, prescribing 87% generic.
- 2K
- Part D claims, 2023
- 87%
- generic prescribing
- $28.17
- industry payments (Sunshine Act)
- ≥86th
- 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.
Sharon Williamson, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,384 ≥ 86th percentile 86% of 1,370,886 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 · 2023
What does the federal data show about Sharon Williamson, APRN?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
2,384 138% vs specialty avg
Specialty distribution in Florida
How Registered Nurse compares to other specialties among Florida 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).
Sharon Williamson, APRN appears in the CMS NPPES registry as a Registered Nurse provider holding APRN credentials at 911 S MAIN ST, Trenton, FL, 32693, with a listed phone of (352) 463-2374. NPI 1821455155 was issued on 01/17/2016.
Medicare Part D records for calendar year 2023 show 2,384 prescription claims written by this provider, covering 359 Medicare beneficiaries and totaling roughly $212K in drug spend, split 13% brand-name and 87% generic by claim count.
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 | 1821455155 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 01/17/2016 |
Hospital and facility affiliations
Facilities where Sharon Williamson, APRN 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.
Lake Area Physical Therapy Inc.
Melrose, FL
North Florida Physicians, LLC
Gainesville, FL
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 Sharon Williamson, APRN. Source: openpaymentsdata.cms.gov.
Total received
$28
Largest payer
ABBVIE 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.
License & disciplinary context - Florida FLDOH 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Sharon Williamson, APRN. To verify Sharon Williamson, APRN's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Sharon Williamson, APRN - brand share 13.0%
Registered Nurse average
13% brand-name claims vs 87% generic, on 2,384 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.
2,384
Total Claims
$212K
Total Drug Cost
359
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,923
- Total Day Supply
- 140,030
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $174K
- Generic Drug Cost
- $37K
- Antibiotic Claims
- 126
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.43
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 81, 65-74: 171, 75-84: 85, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sharon Williamson, APRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
110 claims
- Amlodipine Besylate
Amlodipine Besylate
104 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
99 claims
- Lisinopril
Lisinopril
96 claims
- Omeprazole
Omeprazole
80 claims
- Losartan Potassium
Losartan Potassium
79 claims
- Metformin Hcl
Metformin Hcl
70 claims
- Levothyroxine Sodium
Levothyroxine Sodium
56 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 110 |
| Amlodipine Besylate | 104 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 99 |
| Lisinopril | 96 |
| Omeprazole | 80 |
| Losartan Potassium | 79 |
| Metformin Hcl | 70 |
| Levothyroxine Sodium | 56 |
| Gabapentin | 50 |
| Fluticasone Propionate | 47 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Sharon Williamson, APRN 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
Sharon Williamson, APRN's 2,384 claims are above the specialty average of 1,000.
Nearby Registered Nurse Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Williamson.
Tracie Aaron
Jacksonville, FL
Sharon Abbady
Pembroke Pines, FL
Dr. Meghan Abbott
RN
Bradenton, FL
Dr. Rachael Abbott
RN
Bradenton, FL
Dr. Mohamed Abdelli
RN
Panama City, FL
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 Florida 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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Frequently Asked Questions
What is Sharon Williamson, APRN's specialty? ▼
Sharon Williamson, APRN specializes in Registered Nurse and practices in Trenton, Florida. Credentials: APRN.
How much does Sharon Williamson, APRN prescribe under Medicare Part D? ▼
In 2023, Sharon Williamson, APRN wrote 2,384 Medicare Part D claims totaling $212K in drug costs for 359 beneficiaries.
Where is Sharon Williamson, APRN located? ▼
Sharon Williamson, APRN is located at 911 S MAIN ST, Trenton, FL, 32693. Phone: (352) 463-2374.
What is Sharon Williamson, APRN's NPI number? ▼
Sharon Williamson, APRN's National Provider Identifier (NPI) is 1821455155, issued on 01/17/2016.
Does Sharon Williamson, APRN prescribe more brand-name or generic drugs? ▼
Sharon Williamson, APRN's prescribing is 13% brand-name and 87% generic drugs by claim count, with $174K in brand drug costs.
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 Sharon Williamson, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Sharon Williamson, APRN's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sharon Williamson, APRN accept Medicare? ▼
Sharon Williamson, APRN appears in CMS Medicare data with 2,384 Part D claims and 359 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sharon Williamson, APRN's credentials? ▼
Sharon Williamson, APRN's NPI is 1821455155 with credentials APRN. 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
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.