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Dr. Elizabeth Ann Marcus, MD
NPI1457464638PAC ID9739363490
- Medicare services, 2024
- 39
- Medicare patients, 2024
- 40
- Part D claims, 2024
- 61
- Publications
- 6
- Clinical trials
- 1
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Marcus' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Elizabeth Ann Marcus is a general surgeon in Chicago, Illinois
Dr. Marcus practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Dr. Marcus' NPI, 1457464638, was assigned on August 15, 2006. Dr. Marcus graduated from University of Pittsburgh School of Medicine in 1988. Dr. Marcus holds Illinois license 036-093110.
NPI and contact details
- NPI
- 1457464638NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739363490
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 864-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Elizabeth Ann Marcus practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois
Dr. Marcus' primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000.
- John H. Stroger, Jr. Hospital of Cook County1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
Source: Dmand AI Affiliation Data
Dr. Elizabeth Ann Marcus is affiliated with 1 site of care and 1 medical group
Dr. Marcus' primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government. The medical group on file is John H. Stroger, Jr. Hospital of Cook County.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Elizabeth Ann Marcus' 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.
| Site | EHR vendor and product |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Marcus practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cook County Government and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Elizabeth Ann Marcus is one of 1,217 general surgeons in Illinois
Surgery is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Marcus is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Marcus
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
1,217general surgeons in Illinois372general surgeons in Chicago22general surgeons at John H. Stroger, Jr. Hospital of Cook County
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Elizabeth Ann Marcus billed Medicare for 39 services in 2024
CMS data shows 39 Medicare services from Dr. Marcus across 1 procedure code in 2024, all of them office visits, for 40 Medicare patients. Medicare paid $1,997 for them. Every service was in an office.
Medicare services, 202439
Medicare patients40
Paid by Medicare$1,997
Procedure codes1
Dr. Marcus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 452024: 3913%
Dr. Marcus compared with the Illinois median for general surgeons, 2024
- Dr. Marcus
- Illinois median
- Medicare services
- 39vs 19480% below
- Medicare patients
- 40vs 14472% below
- Part D claims
- 36vs 2829% above
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Marcus' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marcus and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Elizabeth Ann Marcus treated 40 Medicare patients in 2024, average age 74
CMS counts 40 Medicare patients who saw Dr. Marcus in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have cancer, and 75% have high blood pressure. 68% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 73, with 100% women.
Medicare patients, 202440
Average age74
Average risk score0.93
Also on Medicaid68%
Dr. Marcus' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Marcus' Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol60%
- Arthritis45%
- Diabetes38%
Share of Medicare patients with each condition. A patient can have several.
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 73
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Elizabeth Ann Marcus wrote 61 Medicare Part D claims in 2024
In 2024, Dr. Marcus wrote 61 Medicare Part D claims for 31 patients. 98% of them were for generic drugs. CMS names the drug for 36 of them, across 1 drug with 11 or more claims each, at $630 in total drug cost. In 2023, CMS named 72 claims across 3 drugs.
Part D claims, 202461
Drugs named by CMS1
Total drug cost$630
Part D patients31
Dr. Marcus' Part D claims by kind of drug, 2024
- Generic60 claims98%
- Brand-name and other1 claims2%
Dr. Marcus' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Marcus' Part D claims, 2024
- Opioids21%13 of 61 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 722024: 3650%
Drugs named by CMS: 1 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Elizabeth Ann Marcus scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Marcus for performance year 2024, reported as part of a group. Dr. Marcus accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Marcus' MIPS scores, performance year 2024
- 95of 100Final score
- 74.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Elizabeth Ann Marcus has 6 publications on record
Dmand AI links 6 papers to Dr. Marcus, published from 2017 to 2023. 2019 was the busiest year, with 3. The most frequent topics are Triple Negative Breast Neoplasms, Neoadjuvant Therapy and Chemotherapy, Adjuvant. Dr. Marcus' most frequent co-authors are Banujan Balachandran, MD, Jose Gilberto Bazan, MD and Kathlyn E. Fletcher, MD.
Papers6
Years published2017 to 2023
Dr. Marcus' papers by year, 2017 to 2023
Topics Dr. Marcus writes about most
- Triple Negative Breast Neoplasms
- Neoadjuvant Therapy
- Chemotherapy, Adjuvant
Dr. Marcus' most frequent co-authors
- Banujan Balachandran, MD1 shared paper
- Jose Gilberto Bazan, MD1 shared paper
- Kathlyn E. Fletcher, MD1 shared paper
Recent publications by Dr. Marcus
Chemotherapy, AdjuvantCirculating Tumor DNAGene Frequency
Antineoplastic AgentsApoptosisCell Line, Tumor
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Elizabeth Ann Marcus has worked on 1 clinical trial
Dmand AI links Dr. Marcus to 1 clinical trial. Conditions studied include Triple Negative Breast Neoplasms and Neoplasm Metastasis.
Conditions in Dr. Marcus' trials
- Triple Negative Breast Neoplasms
- Neoplasm Metastasis
Recent clinical trials with Dr. Marcus
Triple Negative Breast NeoplasmsNeoplasm Metastasis
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Elizabeth Ann Marcus received $608 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Marcus from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $318.
General payments to Dr. Marcus by program year, 2016 to 2025
Companies that paid Dr. Marcus the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Elizabeth Ann Marcus graduated from University of Pittsburgh School of Medicine
Dr. Marcus graduated from University of Pittsburgh School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Elizabeth Ann Marcus's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Elizabeth Ann Marcus
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. Elizabeth Ann Marcus' NPI number?
Dr. Elizabeth Ann Marcus' NPI number is 1457464638. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Elizabeth Ann Marcus?
Dr. Elizabeth Ann Marcus is a general surgeon in Chicago, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Elizabeth Ann Marcus practice?
Dr. Marcus practices at 1901 W Harrison St, Chicago, IL 60612. Dr. Marcus' primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Dr. Elizabeth Ann Marcus' office phone number?
The practice phone on file for Dr. Marcus is (312) 864-6000.
What is Dr. Elizabeth Ann Marcus' medical license number?
Dr. Marcus holds Illinois license 036-093110.
Which hospitals is Dr. Elizabeth Ann Marcus affiliated with?
Dr. Marcus practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
What medical group is Dr. Elizabeth Ann Marcus part of?
Dr. Marcus is linked to John H. Stroger, Jr. Hospital of Cook County.
Does Dr. Elizabeth Ann Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 39 services in 2024, and Dr. Marcus accepts Medicare assignment.
What is Dr. Elizabeth Ann Marcus' MIPS score?
Dr. Marcus' MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
How many Medicare patients does Dr. Elizabeth Ann Marcus see?
CMS counts 40 Medicare patients who saw Dr. Marcus in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Elizabeth Ann Marcus bill to Medicare?
In 2024, Dr. Marcus' most billed Medicare services were office visit, established patient (99213).
Where did Dr. Elizabeth Ann Marcus go to medical school?
Dr. Marcus graduated from University of Pittsburgh School of Medicine in 1988.
What drugs does Dr. Elizabeth Ann Marcus prescribe most?
In 2024 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Anastrozole.
Has Dr. Elizabeth Ann Marcus received payments from drug or device companies?
CMS Open Payments shows $608 in general payments to Dr. Marcus from 4 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Elizabeth Ann Marcus been practicing?
Dr. Marcus graduated from medical school in 1988, 38 years ago.
Does Dr. Elizabeth Ann Marcus do research?
Dmand AI links 6 publications to Dr. Marcus, published from 2017 to 2023. Dr. Marcus has worked on 1 clinical trial.
Who does Dr. Elizabeth Ann Marcus publish with?
Dr. Marcus' most frequent co-authors are Banujan Balachandran, MD (1 shared paper), Jose Gilberto Bazan, MD (1 shared paper) and Kathlyn E. Fletcher, MD (1 shared paper).
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