2026 NPPES data Oncology Registered Nurse NPI 1104461128 FNP-C, APRN
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BRENNA WILLIAMS, FNP-C, APRN

Oncology Registered Nurse in TAMPA, Florida. 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
195
Medicare Part D claims · 50 beneficiaries · Oncology Registered Nurse avg: 555
MIPS score
89.4387/100
▲ 6 pts above national avg 83.1 · [object Object]
What the federal data reveals: BRENNA WILLIAMS, FNP-C, APRN is a Oncology Registered Nurse ([object Object]) practicing in TAMPA, Florida with a Medicare Part D prescribing footprint of 195 claims across 50 beneficiaries . Their CMS MIPS Final Score of 89.4387/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: BRENNA WILLIAMS, FNP-C, APRN reported a CMS MIPS final score of 89.4387 out of 100, above the 83.1 national average, and filed 195 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

BRENNA WILLIAMS, FNP-C, APRN at a glance

High performer (top quartile)

NPI registry status

Active

Issued 11/13/2019

NPI 1104461128

Primary specialty

Oncology Registered Nurse

Niche

857 US NPIs in this specialty

Medicare Part D claims

195 65% vs specialty avg

2023 prescription claims

Specialty avg: 555

MIPS final score

89.4387/100 6.338700000000003% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Florida

How Oncology Registered Nurse compares to other specialties among Florida providers

Florida providers

Oncology Registered Nurse share within Florida

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

Medicare quality performance — MIPS

BRENNA WILLIAMS, FNP-C, APRN's 2023 MIPS final score plotted against the Oncology Registered Nurse national average

High performer (top quartile)
MIPS Final Score
89.4387/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Oncology Registered Nurse) — 89.4387/100 vs national avg 83.1

0%100%National avg83%89.4%
MIPS final score (Oncology Registered Nurse) — 89.4387/100 vs national avg 83.1

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).

BRENNA WILLIAMS, FNP-C, APRN is a Oncology Registered Nurse provider practicing in TAMPA, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP-C, APRN. NPI: 1104461128. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BRENNA WILLIAMS, FNP-C, APRN appears in the CMS NPPES registry as a Oncology Registered Nurse provider holding FNP-C, APRN credentials at 12902 USF MAGNOLIA DR, TAMPA, FL, 33612, with a listed phone of (813) 745-8000. NPI 1104461128 was issued on 11/13/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 195 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $288K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.4387/100 for the 2023 performance year (Quality 73.844), compared with the national average of 83.1.

Oncology Registered Nurse is a narrow specialty nationwide, with 857 enrolled providers across 50 states and an average of 555 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

12902 USF MAGNOLIA DR
TAMPA, FL 33612

Provider Details

NPI 1104461128
Specialty Oncology Registered Nurse
Credentials FNP-C, APRN
Gender Female
NPI Issued 11/13/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

89.4387
Final Score
Avg: 83.1
73.844
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where BRENNA WILLIAMS, FNP-C, 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.

H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC
TAMPA, 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).

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 BRENNA WILLIAMS, FNP-C, APRN. To verify BRENNA WILLIAMS, FNP-C, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

195
Total Claims
$288K
Total Drug Cost
50
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
339
Total Day Supply
9,221
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
70.7 years
Avg HCC Risk Score
2.96
Gender Split
42% female / 58% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Acyclovir
54
Prochlorperazine Maleate
12
Dexamethasone
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Oncology Registered Nurse Overview

How BRENNA WILLIAMS, FNP-C, APRN fits within the Oncology Registered Nurse landscape nationally.

857
Oncology Registered Nurse Providers in US
50
States with Oncology Registered Nurse
555
Avg Claims per Provider

BRENNA WILLIAMS, FNP-C, APRN's 195 claims are below the specialty average of 555.

Nearby Oncology Registered Nurse Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as WILLIAMS.

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

Frequently Asked Questions

What is BRENNA WILLIAMS, FNP-C, APRN's specialty?
BRENNA WILLIAMS, FNP-C, APRN specializes in Oncology Registered Nurse and practices in TAMPA, Florida. Credentials: FNP-C, APRN.
How much does BRENNA WILLIAMS, FNP-C, APRN prescribe under Medicare Part D?
In 2023, BRENNA WILLIAMS, FNP-C, APRN wrote 195 Medicare Part D claims totaling $288K in drug costs for 50 beneficiaries.
What is BRENNA WILLIAMS, FNP-C, APRN's Medicare quality score?
BRENNA WILLIAMS, FNP-C, APRN has a CMS MIPS Final Score of 89.4387/100 (Quality: 73.844). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BRENNA WILLIAMS, FNP-C, APRN located?
BRENNA WILLIAMS, FNP-C, APRN is located at 12902 USF MAGNOLIA DR, TAMPA, FL, 33612. Phone: (813) 745-8000.
What is BRENNA WILLIAMS, FNP-C, APRN's NPI number?
BRENNA WILLIAMS, FNP-C, APRN's National Provider Identifier (NPI) is 1104461128, issued on 11/13/2019.
How many Oncology Registered Nurse providers are there in the US?
There are 857 Oncology Registered Nurse providers across 50 states in the US. The average Oncology Registered Nurse provider writes 555 Medicare Part D claims per year.
What drugs does BRENNA WILLIAMS, FNP-C, APRN prescribe most often?
Based on 2023 Medicare Part D data, BRENNA WILLIAMS, FNP-C, APRN's most frequently prescribed drugs include Acyclovir, Prochlorperazine Maleate, Dexamethasone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRENNA WILLIAMS, FNP-C, APRN accept Medicare?
BRENNA WILLIAMS, FNP-C, APRN appears in CMS Medicare data with 195 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRENNA WILLIAMS, FNP-C, APRN's credentials?
BRENNA WILLIAMS, FNP-C, APRN's NPI is 1104461128 with credentials FNP-C, 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

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