NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1114004975
Verify on CMS → Deborah Toppmeyer
Medical Oncology Physician in New Brunswick, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,815 in Medical 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
348
Medicare Part D claims · 102 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Deborah Toppmeyer filed 348 Medicare Part D claims in 2023 as a Medical Oncology Physician in New Brunswick, New Jersey, prescribing 85% generic.
- 348
- Part D claims, 2023
- 85%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥57th
- 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.
Deborah Toppmeyer's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
348 ≥ 57th percentile 57% 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
✓
Board certification likely (heuristic, not verified)
Deborah Toppmeyer practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Deborah Toppmeyer?
Quality data not reportedPrimary specialty
Medical Oncology Physician
Medicare Part D claims
348 49% vs specialty avg
Specialty distribution in New Jersey
How Medical Oncology Physician compares to other specialties among New Jersey 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 Medical Oncology Physician. 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).
Deborah Toppmeyer appears in the CMS NPPES registry as a Medical Oncology Physician provider at 195 LITTLE ALBANY ST, New Brunswick, NJ, 08901, with a listed phone of (732) 235-2465. NPI 1114004975 was issued on 11/01/2006.
Medicare Part D records for calendar year 2023 show 348 prescription claims written by this provider, covering 102 Medicare beneficiaries and totaling roughly $813K in drug spend, split 15% brand-name and 85% generic by claim count.
Medical Oncology Physician is a narrow specialty nationwide, with 3,815 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
Provider Details
| NPI | 1114004975 |
|---|---|
| Specialty | Medical Oncology Physician |
| Gender | Female |
| NPI Issued | 11/01/2006 |
Hospital and facility affiliations
Facilities where Deborah Toppmeyer 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.
Rutgers Health-Rwj Scleroderma Program
New Brunswick, NJ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Deborah Toppmeyer - brand share 15.0%
Medical Oncology Physician average
15% brand-name claims vs 85% generic, on 348 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.
348
Total Claims
$813K
Total Drug Cost
102
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 696
- Total Day Supply
- 20,460
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $802K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 1.25
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Deborah Toppmeyer prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
120 claims
- Letrozole
Letrozole
66 claims
- Tamoxifen Citrate 44
Tamoxifen Citrate
44 claims
- Ibrance 29
Ibrance
29 claims
- Gabapentin 18
Gabapentin
18 claims
- Estradiol 12
Estradiol
12 claims
| Drug | Claims |
|---|---|
| Anastrozole | 120 |
| Letrozole | 66 |
| Tamoxifen Citrate | 44 |
| Ibrance Palbociclib | 29 |
| Gabapentin | 18 |
| Estradiol | 12 |
* 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 Deborah Toppmeyer fits within the Medical Oncology Physician landscape nationally.
3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Deborah Toppmeyer's 348 claims are below the specialty average of 689.
Nearby Medical Oncology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Toppmeyer.
Dr. Peter Abdelmessieh
DO
Robbinsville, NJ
Dr. Prashasti Agrawal
MD
Middletown, NJ
Joseph Aisner
New Brunswick, NJ
Dr. Sunny Arora
MD
West Long Branch, NJ
Lovely Beaucluche
Livingston, NJ
Compare Medical Oncology Physician 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 New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology Physician 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 Deborah Toppmeyer's specialty? ▼
Deborah Toppmeyer specializes in Medical Oncology Physician and practices in New Brunswick, New Jersey.
How much does Deborah Toppmeyer prescribe under Medicare Part D? ▼
In 2023, Deborah Toppmeyer wrote 348 Medicare Part D claims totaling $813K in drug costs for 102 beneficiaries.
Where is Deborah Toppmeyer located? ▼
Deborah Toppmeyer is located at 195 LITTLE ALBANY ST, New Brunswick, NJ, 08901. Phone: (732) 235-2465.
What is Deborah Toppmeyer's NPI number? ▼
Deborah Toppmeyer's National Provider Identifier (NPI) is 1114004975, issued on 11/01/2006.
Does Deborah Toppmeyer prescribe more brand-name or generic drugs? ▼
Deborah Toppmeyer's prescribing is 15% brand-name and 85% generic drugs by claim count, with $802K in brand drug costs.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,815 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 Deborah Toppmeyer prescribe most often? ▼
Based on 2023 Medicare Part D data, Deborah Toppmeyer's most frequently prescribed drugs include Anastrozole, Letrozole, Tamoxifen Citrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Deborah Toppmeyer accept Medicare? ▼
Deborah Toppmeyer appears in CMS Medicare data with 348 Part D claims and 102 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Deborah Toppmeyer's credentials? ▼
Deborah Toppmeyer's NPI is 1114004975. 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.