2026 NPPES data Medical Oncology Physician NPI 1598931420 MD
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TINA MAYER, MD

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
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

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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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)

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 reported

NPI registry status

Active

Issued 04/30/2008

NPI 1598931420

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

852 24% 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).

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAYER 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 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%. 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 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%
Specialty average (est.)

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

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

3,792
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.

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

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 3,792 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 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

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