Dr. David Marcus , MD
Emergency Medicine โข Rahway, NJ
865 Stone St
Rahway, NJ 070652742
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. David Marcus is listed in NPPES under Emergency Medicine.
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NPI assigned on September 24, 2010; this date does not establish years in practice.
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Published CMS data list 179 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99285 โ Emergency department visit with high level of medical decision making: 103 service units.
- 99284 โ Emergency department visit with moderate level of medical decision making: 48 service units.
- 99291 โ Critical care: 28 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 75% of clinicians listed under Emergency Medicine in New Jersey (2024, 1,250 clinicians with data). Median for this group: 359. Middle half: 194 to 627.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 273 in 2020 to 179 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
865 Stone St
Rahway, NJ 070652742
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Emergency Physician Services Of New York, P.C.; Rwjbh Emergency Medicine Associates, Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
State University Of New York Downstate Medical Center
2009
What Public CMS Data Show
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
195 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $28,702 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $22,886 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $14.75 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2010
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Marcus has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Marcus as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Rahway and New Jersey
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 75% of clinicians listed under Emergency Medicine in New Jersey (2024, 1,250 clinicians with data). Median for this group: 359. Middle half: 194 to 627.
Too few clinicians listed under Emergency Medicine in Rahway have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 70% of clinicians listed under Emergency Medicine in New Jersey (2024, 1,250 clinicians with data). Median for this group: $52,577. Middle half: $27,727 to $87,493.
Too few clinicians listed under Emergency Medicine in Rahway have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 70% of clinicians listed under Emergency Medicine in New Jersey (2024, 1,250 clinicians with data). Median for this group: $40,292. Middle half: $21,134 to $68,467.
Too few clinicians listed under Emergency Medicine in Rahway have Medicare Part B data for 2024 to compare.
10 active clinicians are listed under Emergency Medicine with a practice address in Rahway, NJ (1,755 in New Jersey).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 34% from 273 in 2020 to 179 in 2024.
- 2020: 273
- 2021: 257
- 2022: 189
- 2023: 151
- 2024: 179
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Medicare-allowed amount
Medicare-allowed amount decreased 33% from $42,713 in 2020 to $28,702 in 2024.
- 2020: $42,713
- 2021: $45,831
- 2022: $31,175
- 2023: $23,781
- 2024: $28,702
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Paid by Medicare
Paid by Medicare decreased 32% from $33,851 in 2020 to $22,886 in 2024.
- 2020: $33,851
- 2021: $39,826
- 2022: $25,387
- 2023: $18,997
- 2024: $22,886
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2021 (payments made January 1 โ December 31, 2021): fewer than 11 records totaling $14.75.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
LOKELMA | General | $14.75 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99285
Emergency department visit with high level of medical decision making
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103 | 102 | $1399.17 | $168.52 |
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99284
Emergency department visit with moderate level of medical decision making
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48 | 48 | $965.38 | $114.93 |
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99291
Critical care, first 30-74 minutes
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28 | 28 | $1890.96 | $208.15 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-04-07NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20240219000163
NJ
3375763030
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Rwjbh Emergency Medicine Associates, Llc
865 Stone St, Rahway, NJ 070652742
Phone: 7323814200
Rwjbh Emergency Medicine Associates, Llc
225 Williamson St, Elizabeth, NJ 072023625
Phone: 9089945422
Emergency Physician Services Of New York, P.c.
2209 Genesee St, Utica, NY 135015930
Phone: 3157988100
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Adult Nurse Practitioner
Emergency Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 865 STONE ST, RAHWAY, NJ 070652742 (Tel: 7323814200)
Emergency Medicine (license number reported to NPPES: NY 269132)
Internal Medicine (license number reported to NPPES: NY 269132)
NPI status registered as active in NPPES database
Registered at 27005 76TH AVE, DEPARTMENT OF EMERGENCY MEDICINE, NEW HYDE PARK, NY 110401402 (Tel: 7184707501)
Registered at 27005 76TH AVE, DEPARTMENT OF EMERGENCY MEDICINE, NEW HYDE PARK, NY 110401402 (Tel: 7184707501)
Recorded as DAVID MARCUS, MD
Emergency Medicine (license number reported to NPPES: NY 269132)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Rahway
- Dr. Vincent Valente, DO
- Dr. Schubert Perotte, MD
- Dr. Concepcion Dancel, MD
- Dr. Lynn Mccoy, DO
- Dr. Michael Veltre, MD
- Rayshma Ali
Mailing Address
27005 76th Ave, Department Of Emergency Medicine
New Hyde Park, NY 110401402
Phone: 7184707501