NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1528020708 MD
Verify on CMS → William Mendenhall, MD
Radiation Oncology Physician in Gainesville, 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 6,141 in Radiation Oncology Physician, 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
453
Medicare Part D claims · 166 beneficiaries · Radiation Oncology Physician avg: 135
MIPS score
75/100
CMS neutral threshold · no category scores published
What the federal data shows
William Mendenhall, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 453 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 453
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥61st
- 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.
Federal trust snapshot
What official records show about William Mendenhall, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1528020708), first enumerated 04/04/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 453 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Florida statewide board action statistics are published annually — these figures describe aggregate state activity, not William Mendenhall, MD's individual license status. Verify directly with the state medical board.
Source: FLDOH annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Mendenhall with other Radiation Oncology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Florida
- Dr. Andre Abitbol, M.D. Miami, FL
- Dr. Matthew Abramowitz, MD Miami, FL
- Dr. Scot Ackerman, MD Jacksonville, FL
- Dr. James Adams, MD Pensacola, FL
- Dr. Paul Adams, MD Oxford, FL
- Dr. Anurag Agarwal, MD Boca Raton, FL
Other specialties in Gainesville: Student in an Organized Health Care Education/Training Program (1,473) · Behavior Technician (1,006) · Nurse's Aide (722) · Pharmacist (571)
CMS NPPES provider registry desk
NPI 1528020708 · Radiation Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-NEUTRAL · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1528020708
- ENUM-LEGACY 2006
- TAX-MID 6K Radiation Oncology
- MIPS-NEUTRAL 75/100
- RX-LIGHT 453
- BOOK-THIN 468 in Florida
- PHOTO-ENUM Roger Byhardt, MD · 2006
William Mendenhall, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
453 ≥ 61st percentile 61% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
William Mendenhall, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about William Mendenhall, MD?
CMS neutral score, not measuredPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
453 236% vs specialty avg
MIPS final score
75/100
Specialty distribution in Florida
How Radiation Oncology Physician compares to other specialties among Florida providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1528020708 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/04/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where William Mendenhall, MD 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.
Florida Proton Therapy Institute Inc
Jacksonville, 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 William Mendenhall, MD. To verify William Mendenhall, MD'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 2024.
453
Total Claims
$139K
Total Drug Cost
166
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 802.667
- Total Day Supply
- 20,857
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 91
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What William Mendenhall, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Tamsulosin Hcl
Tamsulosin Hcl
169 claims
- Ciprofloxacin Hcl 54
Ciprofloxacin Hcl
54 claims
- Orgovyx 48
Orgovyx
48 claims
- Testosterone Cypio… 29
Testosterone Cypionate
29 claims
- Alfuzosin Hcl Er 26
Alfuzosin Hcl Er
26 claims
- Sulfamethoxazole-T… 19
Sulfamethoxazole-Trimethoprim
19 claims
- Cefixime 16
Cefixime
16 claims
- Levothyroxine Sodium 14
Levothyroxine Sodium
14 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 169 |
| Ciprofloxacin Hcl | 54 |
| Orgovyx Relugolix | 48 |
| Testosterone Cypionate | 29 |
| Alfuzosin Hcl Er Alfuzosin Hcl | 26 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 19 |
| Cefixime | 16 |
| Levothyroxine Sodium | 14 |
| Terazosin Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How William Mendenhall, MD fits within the Radiation Oncology Physician landscape nationally.
6,141
Radiation Oncology Physician Providers in US
53
States with Radiation Oncology Physician
135
Avg Claims per Provider
William Mendenhall, MD's 453 claims are above the specialty average of 135.
Nationwide Radiation Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mendenhall, both outside Florida so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Radiation Oncology Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Mendenhall.
One of 468 Radiation Oncology Physician providers enrolled in Florida, 11 are shown on this page.
Dr. Anesa Ahamad
M.D.
Aventura, FL
Dr. Clayton Alonso
MD
Tampa, FL
Dr. Robert Amdur
MD
Gainesville, FL
Dr. Beatriz Amendola
MD
South Miami, FL
Dr. Rumpa Amornmarn
MD
Kissimmee, FL
Compare Radiation Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Mendenhall, MD's specialty? ▼
William Mendenhall, MD specializes in Radiation Oncology Physician and practices in Gainesville, Florida. Credentials: MD.
How much does William Mendenhall, MD prescribe under Medicare Part D? ▼
In 2024, William Mendenhall, MD wrote 453 Medicare Part D claims totaling $139K in drug costs for 166 beneficiaries.
What is William Mendenhall, MD's Medicare quality score? ▼
William Mendenhall, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 William Mendenhall, MD located? ▼
William Mendenhall, MD is located at 1600 SW ARCHER RD, Gainesville, FL, 32610. Phone: (352) 265-0287.
What is William Mendenhall, MD's NPI number? ▼
William Mendenhall, MD's National Provider Identifier (NPI) is 1528020708, issued on 04/04/2006.
How many Radiation Oncology Physician providers are there in the US? ▼
There are 6,141 Radiation Oncology Physician providers across 53 states in the US. The average Radiation Oncology Physician provider writes 135 Medicare Part D claims per year.
What drugs does William Mendenhall, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, William Mendenhall, MD's most frequently prescribed drugs include Tamsulosin Hcl, Ciprofloxacin Hcl, Orgovyx. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Mendenhall, MD accept Medicare? ▼
William Mendenhall, MD appears in CMS Medicare data with 453 Part D claims and 166 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Mendenhall, MD's credentials? ▼
William Mendenhall, MD's NPI is 1528020708 with credentials MD. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.