Dr. Marcus Johnson, MD
- Medicare services, 2024
- 612
- Medicare patients, 2024
- 598
- Part D claims, 2024
- 257
- Publications
- 1
- MIPS score, 2024
- 84
- Practice address
- 901 Harry S Truman N Dr, Upper Marlboro, MD 20774
- Practice phone
- Call (240) 677-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UM Capital Region Medical Center
Upper Marlboro, Maryland
Find Dr. Johnson's 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. Marcus Johnson is an emergency medicine physician in Upper Marlboro, Maryland
Dr. Johnson practices at UM Capital Region Medical Center in Upper Marlboro, Maryland.
Dr. Johnson's NPI, 1649568692, was assigned on July 12, 2011. Dr. Johnson holds Pennsylvania license MT200465.
- NPI
- 1649568692NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2011
- NPI status
- Active
- Practice phone
- (240) 677-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Marcus Johnson practices at UM Capital Region Medical Center in Upper Marlboro, Maryland
Dr. Johnson's primary practice is UM Capital Region Medical Center, at 901 Harry S Truman N Dr, Upper Marlboro, MD 20774 in Prince Georges County. The practice phone is (240) 677-3000.
- UM Capital Region Medical Center901 Harry S Truman N Dr, Upper Marlboro, MD 20774 · Prince Georges CountyPhone(240) 677-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marcus Johnson is affiliated with 1 site of care and 2 medical groups
Dr. Johnson's primary practice is UM Capital Region Medical Center in Upper Marlboro, Maryland. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Dr. Johnson to 1 more medical group, 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. Marcus Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UM Capital Region Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcus Johnson is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Johnson is licensed in Pennsylvania.
Specialties and state licenses
- Emergency medicine, PennsylvaniaPrimary
Emergency medicine physicians near Dr. Johnson
Counts of emergency medicine physicians 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. Marcus Johnson billed Medicare for 612 services in 2024
CMS data shows 612 Medicare services from Dr. Johnson across 4 procedure codes in 2024, for 598 Medicare patients. Medicare paid $87,088 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6932024: 61212%
Dr. Johnson compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Johnson
- Maryland median
- Medicare services
- 612vs 3002.0 times
- Medicare patients
- 598vs 2922.0 times
- Part D claims
- 137vs 443.1 times
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Johnson's 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.
Need commercial claims for Dr. Johnson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other emergency medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcus Johnson treated 598 Medicare patients in 2024, average age 76
CMS counts 598 Medicare patients who saw Dr. Johnson in 2024. The largest group is 75 to 84, with 213 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 59, with 56% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women32454%
- Men27446%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes47%
- Mood disorders42%
- Chronic kidney disease39%
- Ischemic heart disease37%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marcus Johnson wrote 257 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 257 Medicare Part D claims for 168 patients. 94% of them were for generic drugs. CMS names the drug for 137 of them, across 7 drugs with 11 or more claims each, at $749 in total drug cost. In 2023, CMS named 98 claims across 5 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic241 claims94%
- Brand-name16 claims6%
Dr. Johnson's 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. Johnson's Part D claims, 2024
- Opioids11%29 of 257 claims
- Antibiotics21%55 of 257 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: 982024: 13740%
Drugs named by CMS: 7 in 2024, 5 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. Marcus Johnson scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group.
Dr. Johnson's MIPS scores, performance year 2024
- 84of 100Final score
- 75.4of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Marcus Johnson has 1 publication on record
Dmand AI links 1 paper to Dr. Johnson in 2018.
Recent publications by Dr. Johnson
See who Dr. Johnson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnson works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marcus Johnson received $74 in industry payments from 2023 to 2024
CMS Open Payments shows 4 general payments to Dr. Johnson from 3 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $36.
General payments to Dr. Johnson by program year, 2023 to 2024
Companies that paid Dr. Johnson the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Marcus Johnson'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 | Clinician Public Reporting: Overall MIPS Performance (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Marcus Johnson
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. Marcus Johnson's NPI number?
Dr. Marcus Johnson's NPI number is 1649568692. It was assigned on July 12, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus Johnson?
Dr. Marcus Johnson is an emergency medicine physician in Upper Marlboro, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Marcus Johnson practice?
Dr. Johnson practices at 901 Harry S Truman N Dr, Upper Marlboro, MD 20774. Dr. Johnson's primary practice is UM Capital Region Medical Center in Upper Marlboro, Maryland. Dmand AI also links Dr. Johnson to 1 medical group.
What is Dr. Marcus Johnson's office phone number?
The practice phone on file for Dr. Johnson is (240) 677-3000.
What is Dr. Marcus Johnson's medical license number?
Dr. Johnson holds Pennsylvania license MT200465.
What medical group is Dr. Marcus Johnson part of?
Dr. Johnson is linked to Emergency Medicine Physicians (EMP). Dmand AI links Dr. Johnson to 1 more medical group.
Does Dr. Marcus Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 612 services in 2024.
What is Dr. Marcus Johnson's MIPS score?
Dr. Johnson's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Marcus Johnson see?
CMS counts 598 Medicare patients who saw Dr. Johnson in 2024, with an average age of 76.
What services does Dr. Marcus Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
Show 4 more questionsShow fewer questions
What drugs does Dr. Marcus Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Ibuprofen, Cephalexin and Cyclobenzaprine HCl.
Has Dr. Marcus Johnson received payments from drug or device companies?
CMS Open Payments shows $74 in general payments to Dr. Johnson from 3 companies from 2023 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Marcus Johnson been practicing?
Dr. Johnson's NPI was assigned in 2011.
Does Dr. Marcus Johnson do research?
Dmand AI links 1 publication to Dr. Johnson.
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