2026 NPPES data Hematology & Oncology Physician NPI 1790082550 M.D
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MEHANDAR KUMAR, M.D

Hematology & Oncology Physician in KEANSBURG, 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
8K
Medicare Part D claims · 644 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$977.8
35 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MEHANDAR KUMAR, M.D filed 8,015 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in KEANSBURG, New Jersey, prescribing 87% generic.

8K
Part D claims, 2023
87%
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.

MEHANDAR KUMAR, M.D's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

8,015 Top 3% higher than 97% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

MEHANDAR KUMAR, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 MEHANDAR KUMAR, M.D?

Quality data not reported

NPI registry status

Active

Issued 02/14/2011

NPI 1790082550

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

8,015 846% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in New Jersey

How Hematology & Oncology Physician compares to other specialties among New Jersey providers

New Jersey providers

Hematology & Oncology Physician share within New Jersey

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hematology & 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).

MEHANDAR KUMAR, M.D appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D credentials at 100 MAIN ST, KEANSBURG, NJ, 07734, with a listed phone of (732) 787-0568. NPI 1790082550 was issued on 02/14/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUMAR 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 8,015 prescription claims written by this provider, covering 644 Medicare beneficiaries and totaling roughly $1.8 million in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.2%. 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

100 MAIN ST
KEANSBURG, NJ 07734

Provider Details

NPI 1790082550
Specialty Hematology & Oncology Physician
Credentials M.D
Gender Male
NPI Issued 02/14/2011

Hospital and facility affiliations

Facilities where MEHANDAR KUMAR, 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.

GK HEALTH, PC
KEANSBURG, NJ
ST JOSEPHS MEDICAL GROUP PC
PATERSON, 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).

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 MEHANDAR KUMAR, M.D. Source: openpaymentsdata.cms.gov.

Total received

$978

Largest payer

Janssen Biotech, 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.

Brand vs generic prescribing mix · Typical

MEHANDAR KUMAR, M.D — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 8,015 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.

8,015
Total Claims
$1.8M
Total Drug Cost
644
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,319
Total Day Supply
437,400
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$1.6M
Generic Drug Cost
$214K
Opioid Claims
100 (1.2% rate)
Antibiotic Claims
341

Patient Demographics

Average Patient Age
70.9 years
Avg HCC Risk Score
1.49
Gender Split
59% female / 41% male
Age Distribution
<65: 127, 65-74: 287, 75-84: 172, 85+: 58

Top Prescribed Drugs (Medicare Part D)

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

What MEHANDAR KUMAR, 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
Atorvastatin Calcium
367
Amlodipine Besylate
329
Levothyroxine Sodium
247
Metformin Hcl
236
Prednisone
223
Montelukast Sodium
192
Omeprazole
188
Losartan Potassium
176
Metoprolol Succinate
172
Lisinopril
165

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

Hematology & Oncology Physician Overview

How MEHANDAR KUMAR, M.D fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

MEHANDAR KUMAR, M.D's 8,015 claims are above the specialty average of 847.

Nearby Hematology & 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 KUMAR.

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MEHANDAR KUMAR, M.D's specialty?
MEHANDAR KUMAR, M.D specializes in Hematology & Oncology Physician and practices in KEANSBURG, New Jersey. Credentials: M.D.
How much does MEHANDAR KUMAR, M.D prescribe under Medicare Part D?
In 2023, MEHANDAR KUMAR, M.D wrote 8,015 Medicare Part D claims totaling $1.8M in drug costs for 644 beneficiaries.
Where is MEHANDAR KUMAR, M.D located?
MEHANDAR KUMAR, M.D is located at 100 MAIN ST, KEANSBURG, NJ, 07734. Phone: (732) 787-0568.
What is MEHANDAR KUMAR, M.D's NPI number?
MEHANDAR KUMAR, M.D's National Provider Identifier (NPI) is 1790082550, issued on 02/14/2011.
Does MEHANDAR KUMAR, M.D prescribe more brand-name or generic drugs?
MEHANDAR KUMAR, M.D's prescribing is 13% brand-name and 87% generic drugs by claim count, with $1.6M in brand drug costs.
Does MEHANDAR KUMAR, M.D prescribe opioids?
Yes, MEHANDAR KUMAR, M.D had 100 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does MEHANDAR KUMAR, M.D prescribe most often?
Based on 2023 Medicare Part D data, MEHANDAR KUMAR, M.D's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MEHANDAR KUMAR, M.D accept Medicare?
MEHANDAR KUMAR, M.D appears in CMS Medicare data with 8,015 Part D claims and 644 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEHANDAR KUMAR, M.D's credentials?
MEHANDAR KUMAR, M.D's NPI is 1790082550 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.
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