Dr. Michael D. Marcus, MD
- Medicare services, 2024
- 2,646
- Medicare patients, 2024
- 525
- Part D claims, 2024
- 1,708
- Hospital affiliations
- 3
- Industry payments
- $9,341
- Practice address
- 12855 N Forty Dr, Saint Louis, MO 63141
- Practice phone
- Call (314) 567-6071
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Neurosurgery of St Louis
Saint Louis, Missouri
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. Michael D. Marcus is a urologist in Saint Louis, Missouri
Dr. Marcus practices at Neurosurgery of St Louis in Saint Louis, Missouri.
Dr. Marcus' NPI, 1588622773, was assigned on May 4, 2006. Dr. Marcus graduated from University of Cincinnati College of Medicine in 1985. Dr. Marcus holds Missouri license R5P91.
- NPI
- 1588622773NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628027596
- NPI enumeration date
- May 4, 2006
- NPI status
- Active
- Practice phone
- (314) 567-6071
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael D. Marcus practices at Neurosurgery of St Louis in Saint Louis, Missouri
Dr. Marcus' primary practice is Neurosurgery of St Louis, at 12855 N Forty Dr, Saint Louis, MO 63141 in Saint Louis County. The practice phone is (314) 567-6071.
- Neurosurgery of St Louis12855 N Forty Dr, Saint Louis, MO 63141 · Saint Louis CountyPhone(314) 567-6071
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael D. Marcus is affiliated with 6 sites of care and 3 medical groups
Dr. Marcus' primary practice is Neurosurgery of St Louis in Saint Louis, Missouri. Dr. Marcus is also affiliated with Mercy Hospital St. Louis. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Marcus to 2 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael D. Marcus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Neurosurgery of St Louis | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael D. Marcus is one of 246 urologists in Missouri
Urology is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Marcus is licensed in Missouri.
Specialties and state licenses
- Urology, MissouriPrimary
Urologists near Dr. Marcus
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael D. Marcus billed Medicare for 2,646 services in 2024
CMS data shows 2,646 Medicare services from Dr. Marcus across 28 procedure codes in 2024, for 525 Medicare patients. Medicare paid $134,490 for them.
Dr. Marcus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9962024: 1,23424%
- Surgery
- 2023: 3822024: 47023%
- Other services
- 2023: 02024: 446
- Lab and pathology
- 2023: 2532024: 33834%
- Imaging
- 2023: 1092024: 12212%
- Tests and treatments
- 2023: 252024: 2212%
- Drugs given in the office
- 2023: 962024: 1485%
Where Dr. Marcus' Medicare services took place, 2024
- In an office2,48094%
- In a facility1666%
Dr. Marcus compared with the Missouri median for urologists, 2024
- Dr. Marcus
- Missouri median
- Medicare services
- 2,646vs 1,53472% above
- Medicare patients
- 525vs 5005% above
- Part D claims
- 1,590vs 79999% above
Medians across 252 urologists in Missouri 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 urologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael D. Marcus treated 525 Medicare patients in 2024, average age 76
CMS counts 525 Medicare patients who saw Dr. Marcus in 2024. The largest group is 65 to 74, with 213 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 71, with 21% women.
Dr. Marcus' Medicare patients by age, 2024
Dr. Marcus' Medicare patients by sex, 2024
- Women11121%
- Men41479%
Chronic conditions among Dr. Marcus' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease37%
- Chronic kidney disease34%
- Diabetes31%
- Cancer28%
- Atrial fibrillation27%
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 71
Patient panel by sex, all payers
- Women21%
- Men79%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael D. Marcus wrote 1,708 Medicare Part D claims in 2024
In 2024, Dr. Marcus wrote 1,708 Medicare Part D claims for 455 patients. 83% of them were for generic drugs. CMS names the drug for 1,590 of them, across 24 drugs with 11 or more claims each, at $1,359,717 in total drug cost. In 2023, CMS named 1,458 claims across 22 drugs.
Dr. Marcus' Part D claims by kind of drug, 2024
- Generic1,423 claims83%
- Brand-name285 claims17%
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
- Opioids2%30 of 1,708 claims
- Antibiotics10%165 of 1,708 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: 1,4582024: 1,5909%
Drugs named by CMS: 24 in 2024, 22 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
How Dr. Michael D. Marcus takes part in Medicare
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Source: Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael D. Marcus received $9,341 in industry payments from 2016 to 2025
CMS Open Payments shows 362 general payments to Dr. Marcus from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Astellas Pharma US Inc paid the most, $871.
General payments to Dr. Marcus by program year, 2016 to 2025
General payments to Dr. Marcus by kind, 2016 to 2025
- Food and beverage$9,25199%
- Education$901%
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. Michael D. Marcus graduated from University of Cincinnati College of Medicine
Dr. Marcus graduated from University of Cincinnati College of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael D. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Utilization Data (CMS) (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. Michael D. 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. Michael D. Marcus' NPI number?
Dr. Michael D. Marcus' NPI number is 1588622773. It was assigned on May 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael D. Marcus?
Dr. Michael D. Marcus is a urologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Michael D. Marcus practice?
Dr. Marcus practices at 12855 N Forty Dr, Saint Louis, MO 63141. Dr. Marcus' primary practice is Neurosurgery of St Louis in Saint Louis, Missouri. Dmand AI also links Dr. Marcus to 2 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Michael D. Marcus' office phone number?
The practice phone on file for Dr. Marcus is (314) 567-6071.
What is Dr. Michael D. Marcus' medical license number?
Dr. Marcus holds Missouri license R5P91.
Which hospitals is Dr. Michael D. Marcus affiliated with?
Dr. Marcus is affiliated with Mercy Hospital St. Louis. Dmand AI links Dr. Marcus to 2 more hospitals.
What medical group is Dr. Michael D. Marcus part of?
Dr. Marcus is linked to OSF Multi-Specialty Group. Dmand AI links Dr. Marcus to 2 more medical groups.
Does Dr. Michael D. Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 2,646 services in 2024.
How many Medicare patients does Dr. Michael D. Marcus see?
CMS counts 525 Medicare patients who saw Dr. Marcus in 2024, with an average age of 76.
What services does Dr. Michael D. Marcus bill to Medicare?
In 2024, Dr. Marcus' most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and lab and pathology test (81003).
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Where did Dr. Michael D. Marcus go to medical school?
Dr. Marcus graduated from University of Cincinnati College of Medicine in 1985.
What drugs does Dr. Michael D. Marcus prescribe most?
In 2024 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Dutasteride.
Has Dr. Michael D. Marcus received payments from drug or device companies?
CMS Open Payments shows $9,341 in general payments to Dr. Marcus from 58 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Michael D. Marcus been practicing?
Dr. Marcus graduated from medical school in 1985, 41 years ago.
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