Dr. Robert B. Marcus Jr., MD

  • Poplar Bluff, MO
  • Therapeutic radiology physician
NPI1023024189PAC ID8426030685
Medicare services, 2020
804
Part D claims, 2017
17
Publications
100
Industry payments
$337
Affiliated sites
1
Practice address
3098 Oak Grove Rd, Poplar Bluff, MO 63901
Practice phone
Call (573) 776-2835
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Poplar Bluff HMA Physician Management

Poplar Bluff, Missouri

See all 6 affiliations

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Dr. Robert B. Marcus Jr. is a therapeutic radiology physician in Poplar Bluff, Missouri

Dr. Marcus practices at Poplar Bluff HMA Physician Management in Poplar Bluff, Missouri.

Dr. Marcus' NPI, 1023024189, was assigned on July 31, 2006. Dr. Marcus graduated from University Of Florida College Of Medicine in 1975. Dr. Marcus holds Florida license 29054.

NPI and contact details
Medicare PAC ID
8426030685
NPI enumeration date
July 31, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(573) 776-2835
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
77
Medical school graduation
1975

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Robert B. Marcus Jr. practices at Poplar Bluff HMA Physician Management in Poplar Bluff, Missouri

Dr. Marcus' primary practice is Poplar Bluff HMA Physician Management, at 3098 Oak Grove Rd, Poplar Bluff, MO 63901 in Butler County. The practice phone is (573) 776-2835.

  • Poplar Bluff HMA Physician Management
    3098 Oak Grove Rd, Poplar Bluff, MO 63901 · Butler CountyPhone(573) 776-2835

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Robert B. Marcus Jr. is affiliated with 2 sites of care and 4 medical groups

Dr. Marcus' primary practice is Poplar Bluff HMA Physician Management in Poplar Bluff, Missouri. The medical group on file is Regional Physician Services. Dmand AI also links Dr. Marcus to 3 more medical groups and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Marcus

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Robert B. Marcus Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Poplar Bluff HMA Physician ManagementAvailable with a free account
+1 more site and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Robert B. Marcus Jr. is one of 2 therapeutic radiology physicians in Missouri

Therapeutic radiology is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 2085R0203X. Dr. Marcus is board certified in therapeutic radiology by the American Board of Radiology. Dmand AI has Dr. Marcus' licenses on file in 5 states: Florida, Georgia, Missouri, Arkansas and Tennessee.

Specialties and state licenses

  • Therapeutic radiology, FloridaPrimaryLicense 29054 · 1975 to 2026 · taxonomy 2085R0203X
  • Radiation oncology, GeorgiaLicense 029347 · 1987 to 2026 · taxonomy 2085R0001X
  • Missouri license2019 to 2026
  • Arkansas license2018 to 2023
  • Tennessee license2018 to 2021

Therapeutic radiology physicians near Dr. Marcus

Counts of therapeutic radiology physicians with a Dmand AI profile, by place and practice. Each opens the list.

2therapeutic radiology physicians in Missouri

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Robert B. Marcus Jr. billed Medicare for 804 services in 2020

CMS data shows 804 Medicare services from Dr. Marcus across 12 procedure codes in 2020. Medicare paid $48,520 for them.

Medicare services, 2020804
Paid by Medicare$48,520
Procedure codes12

Dr. Marcus' Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Imaging
2019: 3982020: 63860%
Other services
2019: 5772020: 15174%
Office and hospital visits
2019: 402020: 1563%

Where Dr. Marcus' Medicare services took place, 2020

  • In an office9512%
  • In a facility70988%

Dr. Marcus' most billed Medicare procedure codes, 2020

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Marcus

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Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Dr. Robert B. Marcus Jr.'s patients have a median age of 77

Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 77, with 38% women.

Dr. Marcus' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women38%
  • Men63%

Source: Dmand AI Patient Panel Data

Dr. Robert B. Marcus Jr. wrote 17 Medicare Part D claims in 2017

In 2017, Dr. Marcus wrote 17 Medicare Part D claims. They cover 1 drug, with $309 in total drug cost. In 2016, CMS named 28 claims across 2 drugs.

Part D claims, 201717
Drugs named by CMS1
Total drug cost$309

Dr. Marcus' most prescribed drugs by claims, 2017

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2016 to 2017

  • 2016
  • 2017
Claims for drugs CMS names
2016: 282017: 1739%

Drugs named by CMS: 1 in 2017, 2 in 2016.

See all prescribing by Dr. Marcus

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Dr. Robert B. Marcus Jr. takes part in Medicare

Dr. Marcus accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Robert B. Marcus Jr. has 100 publications on record

Dmand AI links 100 papers to Dr. Marcus, published from 2006 to 2021. 2011 was the busiest year, with 6. The most frequent topics are Radiotherapy Dosage, Brain Neoplasms and Antineoplastic Combined Chemotherapy Protocols. Dr. Marcus has published most often in Int J Radiat Oncol Biol Phys. Dr. Marcus' most frequent co-authors are Nancy P. Mendenhall, MD, William M. Mendenhall, MD and Daniel J. Indelicato, MD.

Papers100
Years published2006 to 2021

Dr. Marcus' papers by year, 2007 to 2021

Topics Dr. Marcus writes about most

  • Radiotherapy Dosage
  • Brain Neoplasms
  • Antineoplastic Combined Chemotherapy Protocols
  • Radiotherapy
  • Bone Neoplasms
  • Sarcoma, Ewing
  • Sarcoma
  • Analysis of Variance

Dr. Marcus' most frequent co-authors

Recent publications by Dr. Marcus

See all 100 publications and co-authors

See who Dr. Marcus researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marcus works with, so you can find a warm path to the right therapeutic radiology physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Robert B. Marcus Jr. received $337 in industry payments from 2016 to 2018

CMS Open Payments shows 7 general payments to Dr. Marcus from 6 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Novocure Inc. paid the most, $133.

General payments to Dr. Marcus by program year, 2016 to 2018

Companies that paid Dr. Marcus the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Marcus

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Robert B. Marcus Jr. graduated from University Of Florida College Of Medicine

Dr. Marcus graduated from University Of Florida College Of Medicine in 1975.

  1. Medical schoolUniversity Of Florida College Of Medicine
  2. Board certified in therapeutic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Robert B. Marcus Jr. accepts plans from 7 insurance carriers

Dr. Marcus is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Cigna
  • HCSC
  • Regence Health Plans
  • AR State Medicaid
  • GA State Medicaid

Plan types Dr. Marcus accepts, by number of carriers

  1. Medicare5
  2. PPO5
  3. HMO3
  4. Medicaid3
  5. POS3
  6. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Robert B. Marcus Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Robert B. Marcus Jr.

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Robert B. Marcus Jr.'s NPI number?

Dr. Robert B. Marcus Jr.'s NPI number is 1023024189. It was assigned on July 31, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Robert B. Marcus Jr.?

Dr. Robert B. Marcus Jr. is a therapeutic radiology physician in Poplar Bluff, Missouri. The primary specialty in the NPI Registry is Therapeutic Radiology Physician (taxonomy code 2085R0203X).

Where does Dr. Robert B. Marcus Jr. practice?

Dr. Marcus practices at 3098 Oak Grove Rd, Poplar Bluff, MO 63901. Dr. Marcus' primary practice is Poplar Bluff HMA Physician Management in Poplar Bluff, Missouri. Dmand AI also links Dr. Marcus to 3 medical groups and 1 group practice or clinic.

What is Dr. Robert B. Marcus Jr.'s office phone number?

The practice phone on file for Dr. Marcus is (573) 776-2835.

What is Dr. Robert B. Marcus Jr.'s medical license number?

Dr. Marcus holds Florida license 29054, one of the licenses on file in 5 states.

Which states has Dr. Robert B. Marcus Jr. been licensed in?

Dmand AI has state licenses on file for Dr. Marcus in Florida (1975 to 2026), Georgia (1987 to 2026), Missouri (2019 to 2026), Arkansas (2018 to 2023) and Tennessee (2018 to 2021).

What medical group is Dr. Robert B. Marcus Jr. part of?

Dr. Marcus is linked to Regional Physician Services. Dmand AI links Dr. Marcus to 3 more medical groups.

Does Dr. Robert B. Marcus Jr. accept Medicare?

Yes. CMS data shows Dr. Marcus billed Medicare for 804 services in 2020, and Dr. Marcus accepts Medicare assignment.

Is Dr. Robert B. Marcus Jr. board certified?

Yes. Dr. Marcus is board certified in therapeutic radiology by the American Board of Radiology.

What services does Dr. Robert B. Marcus Jr. bill to Medicare?

In 2020, Dr. Marcus' most billed Medicare services were radiation oncology (77014), medicare service (G6002) and radiation oncology (77427).

Show 7 more questionsShow fewer questions

Where did Dr. Robert B. Marcus Jr. go to medical school?

Dr. Marcus graduated from University Of Florida College Of Medicine in 1975.

What drugs does Dr. Robert B. Marcus Jr. prescribe most?

In 2017 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Ondansetron ODT.

Has Dr. Robert B. Marcus Jr. received payments from drug or device companies?

CMS Open Payments shows $337 in general payments to Dr. Marcus from 6 companies from 2016 to 2018. The largest total came from Novocure Inc.

How long has Dr. Robert B. Marcus Jr. been practicing?

Dr. Marcus graduated from medical school in 1975, 51 years ago.

Does Dr. Robert B. Marcus Jr. do research?

Dmand AI links 100 publications to Dr. Marcus, published from 2006 to 2021.

Who does Dr. Robert B. Marcus Jr. publish with?

Dr. Marcus' most frequent co-authors are Nancy P. Mendenhall, MD (27 shared papers), William M. Mendenhall, MD (23 shared papers) and Daniel J. Indelicato, MD (20 shared papers).

What insurance does Dr. Robert B. Marcus Jr. accept?

Dr. Marcus is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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