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Dr. Robert S. Alter, MD

Medical Oncology (Medical Oncology Physician)

  • Medicare participating

At a glance

Medical school
College of Medicine and Surgery (1988)
Years since graduation
38
In the NPI registry since
2006
Medicare patients seen, 2024
800

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1988Medical school: College of Medicine and Surgery
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Medical Oncology Physician primary
    NJ license 25MA06465900
  • Hematology (Internal Medicine) Physician
    NJ license 25MA06465900

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Medical Oncology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
800
Services billed
43,309
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, epoetin alfa, (for non-esrd use), 1000 units3,93031
Established patient office or other outpatient visit, 30-39 minutes1,205559
Established patient office or other outpatient visit, 40-54 minutes952260
Injection, pegfilgrastim-cbqv (udenyca), biosimilar, 0.5 mg92425
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes373135
Injection of drug or substance under skin or into muscle22464
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count11359
New patient office or other outpatient visit, 60-74 minutes113113
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes10995
Complete blood cell count (red cells, white blood cell, platelets), automated test2817

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Abiraterone Acetate454
Prednisone
Other prescribers in Hackensack, NJ
371
Ondansetron Hcl
Other prescribers in Hackensack, NJ
110
Prochlorperazine Maleate
Other prescribers in Hackensack, NJ
104
Xtandi (enzalutamide)104
Nubeqa (darolutamide)92
Cabometyx (cabozantinib s-malate)91
Levothyroxine Sodium
Other prescribers in Hackensack, NJ
78
Orgovyx (relugolix)59
Erleada (apalutamide)51

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 29 companies reported 145 payments worth $39,678 in total to this clinician.

By type
Consulting Fee$14,709
Compensation for services other than consulting (speaking, faculty)$14,036
Speaking at a medical education program$4,613
Travel and Lodging$3,858
Food and Beverage$2,194
Education$268

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Sep 27, 2025Astellas Pharma US Inc
Sep 27, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$4,110
Mar 14, 2025Janssen Biotech, Inc.
Mar 14, 2025
Consulting Fee
ERLEADA; AKEEGA · Oncology
$3,788
May 15, 2025Astellas Pharma US Inc
May 15, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$3,425
Jul 10, 2025Astellas Pharma US Inc
Jul 10, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$3,425
Oct 9, 2025Eisai Inc.
Oct 9, 2025
Speaking at a medical education program
Lenvima · Oncology
$3,075
Dec 17, 2025AstraZeneca Pharmaceuticals LP
Dec 17, 2025
Consulting Fee
Truqap · Oncology
$2,750
Aug 29, 2025Exelixis Inc.
Aug 29, 2025
Consulting Fee
CABOMETYX · Renal Cell Carcinoma (RCC) Hepatocellular Carcinoma (HCC) Differentiated Thyroid
$2,640
Aug 27, 2025Novartis Pharmaceuticals Corporation
Aug 27, 2025
Consulting Fee$2,100
Oct 9, 2025Eisai Inc.
Oct 9, 2025
Speaking at a medical education program
Lenvima · Oncology
$1,538
Sep 27, 2025Astellas Pharma US Inc
Sep 27, 2025
Travel and Lodging
Padcev · Oncology · travel to Long Branch, NJ
$1,435
All 32 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 17, 2025AstraZeneca Pharmaceuticals LP
Dec 17, 2025
Consulting Fee
Truqap · Oncology
$2,750
Nov 11, 2025Janssen Biotech, Inc.
Nov 11, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$555
Oct 30, 2025Astellas Pharma US Inc
Oct 30, 2025
Travel and Lodging
Padcev · Oncology · travel to Reading, PA
$15.91
Oct 28, 2025Janssen Biotech, Inc.
Oct 28, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$1,110
Oct 11, 2025Eisai Inc.
Oct 11, 2025
Travel and Lodging
Lenvima · Oncology · travel to Lewes, DE
$1,129
Oct 9, 2025Eisai Inc.
Oct 9, 2025
Speaking at a medical education program
Lenvima · Oncology
$3,075
Oct 9, 2025Eisai Inc.
Oct 9, 2025
Speaking at a medical education program
Lenvima · Oncology
$1,538
Oct 2, 2025Eisai Inc.
Oct 2, 2025
Consulting Fee
Lenvima · Oncology
$615
Sep 27, 2025Astellas Pharma US Inc
Sep 27, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$4,110
Sep 27, 2025Astellas Pharma US Inc
Sep 27, 2025
Travel and Lodging
Padcev · Oncology · travel to Long Branch, NJ
$1,435
Sep 27, 2025Astellas Pharma US Inc
Sep 27, 2025
Travel and Lodging
Padcev · Oncology · travel to Long Branch, NJ
$98.80
Aug 29, 2025Exelixis Inc.
Aug 29, 2025
Consulting Fee
CABOMETYX · Renal Cell Carcinoma (RCC) Hepatocellular Carcinoma (HCC) Differentiated Thyroid
$2,640
Aug 27, 2025Novartis Pharmaceuticals Corporation
Aug 27, 2025
Consulting Fee$2,100
Aug 18, 2025Janssen Biotech, Inc.
Aug 18, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$555
Jul 11, 2025Janssen Biotech, Inc.
Jul 11, 2025
Education
ERLEADA · Oncology · in-kind
$99.99
Jul 10, 2025Astellas Pharma US Inc
Jul 10, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$3,425
Jul 5, 2025Astellas Pharma US Inc
Jul 5, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$856
Jun 23, 2025Incyte Corporation
Jun 23, 2025
Education$92.99
Jun 12, 2025Astellas Pharma US Inc
Jun 12, 2025
Education
in-kind
$74.99
May 30, 2025Janssen Biotech, Inc.
May 30, 2025
Consulting Fee
ERLEADA · Oncology
$1,263
May 15, 2025Astellas Pharma US Inc
May 15, 2025
Compensation for services other than consulting (speaking, faculty)
Padcev · Oncology
$3,425
May 15, 2025Astellas Pharma US Inc
May 15, 2025
Travel and Lodging
Padcev · Oncology · travel to Pelham, NY
$170
Apr 22, 2025Eisai Inc.
Apr 22, 2025
Consulting Fee
Lenvima · Oncology
$923
Apr 4, 2025Janssen Biotech, Inc.
Apr 4, 2025
Consulting Fee
ERLEADA; AKEEGA · Oncology
$631
Mar 14, 2025Janssen Biotech, Inc.
Mar 14, 2025
Consulting Fee
ERLEADA; AKEEGA · Oncology
$3,788
Mar 5, 2025Janssen Biotech, Inc.
Mar 5, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX · in-kind
$140
Mar 5, 2025Janssen Biotech, Inc.
Mar 5, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX
$60.94
Mar 5, 2025Janssen Biotech, Inc.
Mar 5, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX
$19.33
Mar 4, 2025Janssen Biotech, Inc.
Mar 4, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX · in-kind
$263
Mar 4, 2025Janssen Biotech, Inc.
Mar 4, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX · in-kind
$150
Mar 4, 2025Janssen Biotech, Inc.
Mar 4, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX
$82.72
Feb 20, 2025Janssen Biotech, Inc.
Feb 20, 2025
Travel and Lodging
ERLEADA; AKEEGA · Oncology · travel to HOUSTON, TX · in-kind
$293

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in New Jersey →

Industry-funded research

Named as a principal investigator on 12 industry-funded studies in 2025, from 7 companies. The companies reported $113,366 in research payments for these studies, mostly to the institutions running them.

  • A Phase II Clinical Trial to Study the Efficacy and Safety of Pembrolizumab MK-3475 and Pembrolizumab in Combination with Other Investigational Agents in Subjects with High-risk Non-muscle-Invasive Bladder Cancer NMIB…
    Merck Sharp & Dohme LLC
  • A Phase 3, Open-label Study of Ifinatamab Deruxtecan Versus Docetaxel in Participants with Metastatic Castration-Resistant Prostate Cancer mCRPC IDeate-Prostate01
    Merck Sharp & Dohme LLC
  • Randomized Study to Evaluate MACE in Patients With Prostate Cancer Treated With Relugolix or Leuprolide Acetate
    Sumitomo Pharma America, Inc. · Completed · NCT05605964
  • A Phase III, Randomized, Double-blind, Matching Placebo-controlled Clinical Trial to Study the Efficacy and Safety of Pembrolizumab MK-3475 in Combination With Chemoradiotherapy CRT versus CRT Alone in Participants wi…
    Merck Sharp & Dohme LLC
  • A phase i dose escalation and expanded cohort study of PF06821497 in the treatment of adult patients with relapsedrefractory small cell lung cancer sclc castration resistant prostate cancer crpc and follicular lymphom…
    Pfizer Inc.
  • A Dose-Escalation and Expansion Study of the Safety and Efficacy of XL092 in Combination with Immuno-Oncology Agents in Subjects with Unresectable Advanced or Metastatic Solid Tumors
    Exelixis Inc.
  • Phase Ib,II Trial of Pembrolizumab MK-3475 Combination Therapies in Metastatic Castration-Resistant Prostate Cancer mCRPC KEYNOTE-365
    Merck Sharp & Dohme LLC
  • A Phase III, Randomized,Open Label,Multi Center,Global Study of Volrustomig as Sequential Therapy Versus Observation in Participants with Unresected Locally Advanced Head and Neck Squamous Cell Carcinoma,Who Have Not …
    AstraZeneca Pharmaceuticals LP
  • A Phase 2 Open-label Extension Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study
    Astellas Pharma Global Development
  • A study of enfortumab vedotin ASG22CE as monotherapy or in combination with other anticancer therapies for the treatment of urothelial cancer
    Pfizer Inc.

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Medical Oncology clinicians in Hackensack

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 26, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1306805460. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.