2026 NPPES data Medical Oncology Physician NPI 1962440305 M.D.
Verify on CMS →

JAMES MAHER, M.D.

Medical Oncology Physician in CINCINNATI, Ohio. 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
1K
Medicare Part D claims · 197 beneficiaries · Medical Oncology Physician avg: 689
MIPS score
90.3837/100
▲ 7 pts above national avg 83.1 · [object Object]
Industry payments
$437.47
20 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JAMES MAHER, M.D. reported a CMS MIPS final score of 90.3837/100 — above the 83.1 national average — and filed 1,270 Medicare Part D claims in 2023.

90.3837/100
MIPS score · +7 vs avg
1K
Part D claims, 2023
Likely
board-certified (heuristic)

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.

JAMES MAHER, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

90 Top 40% higher than 60% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

JAMES MAHER, M.D. 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 JAMES MAHER, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/04/2006

NPI 1962440305

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

1,270 84% vs specialty avg

2023 prescription claims

Specialty avg: 689

MIPS final score

90.3837/100 7.28370000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Ohio

How Medical Oncology Physician compares to other specialties among Ohio providers

Ohio providers

Medical Oncology Physician share within Ohio

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

Medicare quality performance — MIPS

JAMES MAHER, M.D.'s 2023 MIPS final score plotted against the Medical Oncology Physician national average

High performer (top quartile)
MIPS Final Score
90.3837/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Oncology Physician) — 90.3837/100 vs national avg 83.1

0%100%National avg83%90.4%
MIPS final score (Medical Oncology Physician) — 90.3837/100 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).

JAMES MAHER, M.D. appears in the CMS NPPES registry as a Medical Oncology Physician provider holding M.D. credentials at 5520 CHEVIOT ROAD, CINCINNATI, OH, 45247, with a listed phone of (513) 451-4033. NPI 1962440305 was issued on 06/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAHER 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 1,270 prescription claims written by this provider, covering 197 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, with an opioid prescribing rate of 4.6%. 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 90.3837/100 for the 2023 performance year (Quality 80.7674), compared with the national average of 83.1.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 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

5520 CHEVIOT ROAD
CINCINNATI, OH 45247

Provider Details

NPI 1962440305
Specialty Medical Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 06/04/2006

CMS Quality Score (MIPS)

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

90.3837
Final Score
Avg: 83.1
80.7674
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JAMES MAHER, M.D. 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.

TRIHEALTH H LLC
MONTGOMERY, OH

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 JAMES MAHER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$437

Largest payer

Tempus AI, 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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to JAMES MAHER, M.D.. To verify JAMES MAHER, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio 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.

1,270
Total Claims
$1.5M
Total Drug Cost
197
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,903
Total Day Supply
51,770
Generic Drug Cost
$243K
Opioid Claims
58 (4.6% rate)
Antibiotic Claims
62

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
2.20
Gender Split
55% female / 45% male
Age Distribution
<65: 11, 65-74: 79, 75-84: 78, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

What JAMES MAHER, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
74
Gabapentin
73
Anastrozole
57
Letrozole
55
Potassium Chloride
55
Imatinib Mesylate
45
Alendronate Sodium
38
Xtandi
Enzalutamide
36
Xarelto
Rivaroxaban
34
Hydroxyurea
30

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

Medical Oncology Physician Overview

How JAMES MAHER, M.D. fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

JAMES MAHER, M.D.'s 1,270 claims are above the specialty average of 689.

Nearby Medical Oncology Physician Providers in Ohio

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

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

Frequently Asked Questions

What is JAMES MAHER, M.D.'s specialty?
JAMES MAHER, M.D. specializes in Medical Oncology Physician and practices in CINCINNATI, Ohio. Credentials: M.D..
How much does JAMES MAHER, M.D. prescribe under Medicare Part D?
In 2023, JAMES MAHER, M.D. wrote 1,270 Medicare Part D claims totaling $1.5M in drug costs for 197 beneficiaries.
What is JAMES MAHER, M.D.'s Medicare quality score?
JAMES MAHER, M.D. has a CMS MIPS Final Score of 90.3837/100 (Quality: 80.7674). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JAMES MAHER, M.D. located?
JAMES MAHER, M.D. is located at 5520 CHEVIOT ROAD, CINCINNATI, OH, 45247. Phone: (513) 451-4033.
What is JAMES MAHER, M.D.'s NPI number?
JAMES MAHER, M.D.'s National Provider Identifier (NPI) is 1962440305, issued on 06/04/2006.
Does JAMES MAHER, M.D. prescribe opioids?
Yes, JAMES MAHER, M.D. had 58 opioid claims in 2023 with an opioid prescribing rate of 4.6%.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does JAMES MAHER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JAMES MAHER, M.D.'s most frequently prescribed drugs include Prednisone, Gabapentin, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES MAHER, M.D. accept Medicare?
JAMES MAHER, M.D. appears in CMS Medicare data with 1,270 Part D claims and 197 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES MAHER, M.D.'s credentials?
JAMES MAHER, M.D.'s NPI is 1962440305 with credentials M.D.. 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