NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1598931420 MD
Verify on CMS → Tina Mayer, MD
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
852
Medicare Part D claims · 111 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Tina Mayer, MD filed 852 Medicare Part D claims in 2023 as a Medical Oncology Physician in New Brunswick, New Jersey, prescribing 76% generic.
- 852
- Part D claims, 2023
- 76%
- 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.
Tina Mayer, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
852 Top 27% higher than 73% of 1,370,886 prescribers
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)
Tina Mayer, MD 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 Tina Mayer, MD?
Quality data not reportedPrimary specialty
Medical Oncology Physician
Medicare Part D claims
852 24% 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).
Tina Mayer, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 195 LITTLE ALBANY ST, New Brunswick, NJ, 08901, with a listed phone of (732) 235-2465. NPI 1598931420 was issued on 04/30/2008.
Medicare Part D records for calendar year 2023 show 852 prescription claims written by this provider, covering 111 Medicare beneficiaries and totaling roughly $2.9 million in drug spend, split 24% brand-name and 76% generic by claim count, with an opioid prescribing rate of 3.1%.
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 | 1598931420 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/30/2008 |
Hospital and facility affiliations
Facilities where Tina Mayer, 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.
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
Tina Mayer, MD - brand share 24.0%
Medical Oncology Physician average
24% brand-name claims vs 76% generic, on 852 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.
852
Total Claims
$2.9M
Total Drug Cost
111
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,068
- Total Day Supply
- 29,707
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $2.4M
- Generic Drug Cost
- $435K
- Opioid Claims
- 26 (3.1% rate)
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 2.49
- Gender Split
- 10% female / 90% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tina Mayer, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Abiraterone Acetate
Abiraterone Acetate
172 claims
- Prednisone
Prednisone
118 claims
- Xtandi
Xtandi
80 claims
- Bicalutamide
Bicalutamide
72 claims
- Dexamethasone 49
Dexamethasone
49 claims
- Venlafaxine Hcl Er 46
Venlafaxine Hcl Er
46 claims
- Tamsulosin Hcl 26
Tamsulosin Hcl
26 claims
- Ondansetron Hcl 20
Ondansetron Hcl
20 claims
| Drug | Claims |
|---|---|
| Abiraterone Acetate | 172 |
| Prednisone | 118 |
| Xtandi Enzalutamide | 80 |
| Bicalutamide | 72 |
| Dexamethasone | 49 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 46 |
| Tamsulosin Hcl | 26 |
| Ondansetron Hcl | 20 |
| Nubeqa Darolutamide | 18 |
| Lynparza Olaparib | 17 |
* 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 Tina Mayer, MD 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
Tina Mayer, MD's 852 claims are above 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 Mayer.
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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore New Jersey
Frequently Asked Questions
What is Tina Mayer, MD's specialty? ▼
Tina Mayer, MD specializes in Medical Oncology Physician and practices in New Brunswick, New Jersey. Credentials: MD.
How much does Tina Mayer, MD prescribe under Medicare Part D? ▼
In 2023, Tina Mayer, MD wrote 852 Medicare Part D claims totaling $2.9M in drug costs for 111 beneficiaries.
Where is Tina Mayer, MD located? ▼
Tina Mayer, MD is located at 195 LITTLE ALBANY ST, New Brunswick, NJ, 08901. Phone: (732) 235-2465.
What is Tina Mayer, MD's NPI number? ▼
Tina Mayer, MD's National Provider Identifier (NPI) is 1598931420, issued on 04/30/2008.
Does Tina Mayer, MD prescribe more brand-name or generic drugs? ▼
Tina Mayer, MD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $2.4M in brand drug costs.
Does Tina Mayer, MD prescribe opioids? ▼
Yes, Tina Mayer, MD had 26 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
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 Tina Mayer, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Tina Mayer, MD's most frequently prescribed drugs include Abiraterone Acetate, Prednisone, Xtandi. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tina Mayer, MD accept Medicare? ▼
Tina Mayer, MD appears in CMS Medicare data with 852 Part D claims and 111 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tina Mayer, MD's credentials? ▼
Tina Mayer, MD's NPI is 1598931420 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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.