2026 NPPES data Radiation Oncology Physician NPI 1689882680 MD, PHD
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BRENT MAHONEY, MD, PHD

Radiation Oncology Physician in ABILENE, Texas. 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
335
Medicare Part D claims · 129 beneficiaries · Radiation Oncology Physician avg: 186
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.1096/100
▼ 10 pts below national avg 83.1 · [object Object]
Industry payments
$261.99
12 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BRENT MAHONEY, MD, PHD is a Radiation Oncology Physician ([object Object]) practicing in ABILENE, Texas with a Medicare Part D prescribing footprint of 335 claims across 129 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 73.1096/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $261.99 across 12 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BRENT MAHONEY, MD, PHD reported a CMS MIPS final score of 73.1096 out of 100, below the 83.1 national average, and filed 335 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BRENT MAHONEY, MD, PHD 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).

BRENT MAHONEY, MD, PHD at a glance

Below national average

NPI registry status

Active

Issued 05/21/2007

NPI 1689882680

Primary specialty

Radiation Oncology Physician

Mid-sized

6,018 US NPIs in this specialty

Medicare Part D claims

335 80% vs specialty avg

2023 prescription claims

Specialty avg: 186

MIPS final score

73.1096/100 9.990399999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Texas

How Radiation Oncology Physician compares to other specialties among Texas providers

Texas providers

Radiation Oncology Physician share within Texas

1. Radiation Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Radiation Oncology Physician share within Texas

Medicare quality performance — MIPS

BRENT MAHONEY, MD, PHD's 2023 MIPS final score plotted against the Radiation Oncology Physician national average

Below national average
MIPS Final Score
73.1096/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Radiation Oncology Physician) — 73.1096/100 vs national avg 83.1

0%100%National avg83%73.1%
MIPS final score (Radiation Oncology Physician) — 73.1096/100 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).

BRENT MAHONEY, MD, PHD is a Radiation Oncology Physician provider practicing in ABILENE, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD, PHD. NPI: 1689882680. 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.

BRENT MAHONEY, MD, PHD appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding MD, PHD credentials at 2000 PINE ST, ABILENE, TX, 79601, with a listed phone of (325) 670-6340. NPI 1689882680 was issued on 05/21/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAHONEY 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 335 prescription claims written by this provider, covering 129 Medicare beneficiaries and totaling roughly $8K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 11.6%. 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 73.1096/100 for the 2023 performance year (Quality 63.2667, Cost 47.0987), compared with the national average of 83.1.

Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,018 enrolled providers across 52 states and an average of 186 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

2000 PINE ST
ABILENE, TX 79601

Provider Details

NPI 1689882680
Specialty Radiation Oncology Physician
Credentials MD, PHD
Gender Male
NPI Issued 05/21/2007

CMS Quality Score (MIPS)

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

73.1096
Final Score
Avg: 83.1
63.2667
Quality
47.0987
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where BRENT MAHONEY, MD, PHD 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.

HENDRICK PROVIDER NETWORK
ABILENE, TX

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 BRENT MAHONEY, MD, PHD. Source: openpaymentsdata.cms.gov.

Total received

$262

Largest payer

Janssen Biotech, 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 — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to BRENT MAHONEY, MD, PHD. To verify BRENT MAHONEY, MD, PHD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

BRENT MAHONEY, MD, PHD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 335 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.

335
Total Claims
$8K
Total Drug Cost
129
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
473
Total Day Supply
10,732
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$922
Generic Drug Cost
$7K
Opioid Claims
39 (11.6% rate)
Antibiotic Claims
50

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.40
Gender Split
35% female / 65% 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
Tamsulosin Hcl
77
Methylprednisolone
27
Ciprofloxacin Hcl
21
Fluconazole
18
Ssd
Silver Sulfadiazine
15
Fentanyl
14
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
13

* 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 BRENT MAHONEY, MD, PHD fits within the Radiation Oncology Physician landscape nationally.

6,018
Radiation Oncology Physician Providers in US
52
States with Radiation Oncology Physician
186
Avg Claims per Provider

BRENT MAHONEY, MD, PHD's 335 claims are above the specialty average of 186.

Nearby Radiation Oncology Physician Providers in Texas

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

Compare Radiation Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRENT MAHONEY, MD, PHD's specialty?
BRENT MAHONEY, MD, PHD specializes in Radiation Oncology Physician and practices in ABILENE, Texas. Credentials: MD, PHD.
How much does BRENT MAHONEY, MD, PHD prescribe under Medicare Part D?
In 2023, BRENT MAHONEY, MD, PHD wrote 335 Medicare Part D claims totaling $8K in drug costs for 129 beneficiaries.
What is BRENT MAHONEY, MD, PHD's Medicare quality score?
BRENT MAHONEY, MD, PHD has a CMS MIPS Final Score of 73.1096/100 (Quality: 63.2667, Cost: 47.0987). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BRENT MAHONEY, MD, PHD located?
BRENT MAHONEY, MD, PHD is located at 2000 PINE ST, ABILENE, TX, 79601. Phone: (325) 670-6340.
What is BRENT MAHONEY, MD, PHD's NPI number?
BRENT MAHONEY, MD, PHD's National Provider Identifier (NPI) is 1689882680, issued on 05/21/2007.
Does BRENT MAHONEY, MD, PHD prescribe more brand-name or generic drugs?
BRENT MAHONEY, MD, PHD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $922 in brand drug costs.
Does BRENT MAHONEY, MD, PHD prescribe opioids?
Yes, BRENT MAHONEY, MD, PHD had 39 opioid claims in 2023 with an opioid prescribing rate of 11.6%.
How many Radiation Oncology Physician providers are there in the US?
There are 6,018 Radiation Oncology Physician providers across 52 states in the US. The average Radiation Oncology Physician provider writes 186 Medicare Part D claims per year.
What drugs does BRENT MAHONEY, MD, PHD prescribe most often?
Based on 2023 Medicare Part D data, BRENT MAHONEY, MD, PHD's most frequently prescribed drugs include Tamsulosin Hcl, Methylprednisolone, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRENT MAHONEY, MD, PHD accept Medicare?
BRENT MAHONEY, MD, PHD appears in CMS Medicare data with 335 Part D claims and 129 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRENT MAHONEY, MD, PHD's credentials?
BRENT MAHONEY, MD, PHD's NPI is 1689882680 with credentials MD, PHD. 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