2026 NPPES data Medical Oncology Physician NPI 1114004975
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DEBORAH TOPPMEYER

Medical Oncology Physician in NEW BRUNSWICK, New Jersey. 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
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

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)

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 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

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 reported

NPI registry status

Active

Issued 11/01/2006

NPI 1114004975

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

348 49% vs specialty avg

2023 prescription claims

Specialty avg: 689

Specialty distribution in New Jersey

How Medical Oncology Physician compares to other specialties among New Jersey providers

New Jersey providers

Medical Oncology Physician share within New Jersey

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

Specialty board-certification context

Estimated specialty board-certified rate — Medical Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TOPPMEYER 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 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. 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.

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

195 LITTLE ALBANY ST
NEW BRUNSWICK, NJ 08901

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%
Specialty average (est.)

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

3,792
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.

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

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 3,792 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 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

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