Dr. Marcus Lejon Williams, MD
- Medicare services, 2024
- 5,058
- Medicare patients, 2024
- 1,150
- Part D claims, 2024
- 5,045
- Publications
- 5
- Hospital affiliations
- 5
- Practice address
- 101 W Ponce De Leon Ave, Decatur, GA 30030
- Practice phone
- Call (404) 778-4888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Emory Specialty Associates
Decatur, Georgia
Find Dr. Williams' 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 Lejon Williams is an interventional cardiologist in Decatur, Georgia
Dr. Williams practices at Emory Specialty Associates in Decatur, Georgia.
Dr. Williams' NPI, 1417026436, was assigned on November 6, 2006. Dr. Williams graduated from Weill Cornell Medicine in 2001. Dr. Williams holds California license A98711.
- NPI
- 1417026436NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971503301
- NPI enumeration date
- November 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (404) 778-4888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marcus Lejon Williams practices at Emory Specialty Associates in Decatur, Georgia
Dr. Williams' primary practice is Emory Specialty Associates, at 101 W Ponce De Leon Ave, Decatur, GA 30030 in Dekalb County. The practice phone is (404) 778-4888.
- Emory Specialty Associates101 W Ponce De Leon Ave, Decatur, GA 30030 · Dekalb CountyPhone(404) 778-4888
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marcus Lejon Williams is affiliated with 7 sites of care and 4 medical groups
Dr. Williams' primary practice is Emory Specialty Associates in Decatur, Georgia. Dr. Williams is also affiliated with Emory University Hospital. The medical group on file is Emory Healthcare. Dmand AI also links Dr. Williams to 4 more hospitals, 3 medical groups and 1 group practice or clinic, 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. Marcus Lejon Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emory Specialty Associates | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcus Lejon Williams is one of 214 interventional cardiologists in Georgia
Interventional cardiology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Williams is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Williams' licenses on file in 4 states: California, Georgia, Alabama and New York.
Specialties and state licenses
- Interventional cardiology, CaliforniaPrimary
- Cardiovascular disease, Georgia
- Alabama license
- New York license
Clinical focus
Dmand AI lists aneurysm, angioplasty, atrial fibrillation and flutter, cardiac arrhythmia, cardiac catheterization, cardiomyopathy, cerebrovascular disease and chronic hypertension among the conditions Dr. Williams treats.
Interventional cardiologists near Dr. Williams
Counts of interventional cardiologists 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 Lejon Williams billed Medicare for 5,058 services in 2024
CMS data shows 5,058 Medicare services from Dr. Williams across 26 procedure codes in 2024, for 1,150 Medicare patients. Medicare paid $255,488 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,0052024: 2,21611%
- Office and hospital visits
- 2023: 1,1732024: 1,1821%
- Other services
- 2023: 1982024: 1,156484%
- Drugs given in the office
- 2023: 3522024: 3613%
- Imaging
- 2023: 1242024: 14315%
Where Dr. Williams' Medicare services took place, 2024
- In an office3,88677%
- In a facility1,17223%
Dr. Williams compared with the Georgia median for interventional cardiologists, 2024
- Dr. Williams
- Georgia median
- Medicare services
- 5,058vs 1,7662.9 times
- Medicare patients
- 1,150vs 72459% above
- Part D claims
- 4,822vs 2,43098% above
Medians across 213 interventional cardiologists in Georgia with Dmand AI profiles that report each measure.
Dr. Williams' 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. Williams and other interventional cardiologists in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcus Lejon Williams treated 1,150 Medicare patients in 2024, average age 75
CMS counts 1,150 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 455 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.60, 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. Williams' median patient age at 72, with 55% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women59852%
- Men55248%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Ischemic heart disease46%
- Chronic kidney disease43%
- Diabetes43%
- Atrial fibrillation38%
- Heart failure37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marcus Lejon Williams wrote 5,045 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 5,045 Medicare Part D claims for 706 patients. 80% of them were for generic drugs. CMS names the drug for 4,822 of them, across 53 drugs with 11 or more claims each, at $800,422 in total drug cost. In 2023, CMS named 4,504 claims across 47 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic4,022 claims80%
- Brand-name1,023 claims20%
Dr. Williams' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,5042024: 4,8227%
Drugs named by CMS: 53 in 2024, 47 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. Marcus Lejon Williams takes part in Medicare
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Marcus Lejon Williams has 5 publications on record
Dmand AI links 5 papers to Dr. Williams, published from 2010 to 2022. The most frequent topics are Calcium, Predictive Value of Tests and Tomography, X-Ray Computed. Dr. Williams' most frequent co-authors are Richmond Augustine Akatue, MD, Colin MacLeod Barker, MD and Ryan Alan Brown, MD.
Topics Dr. Williams writes about most
- Calcium
- Predictive Value of Tests
- Tomography, X-Ray Computed
Dr. Williams' most frequent co-authors
- Richmond Augustine Akatue, MD1 shared paper
- Colin MacLeod Barker, MD1 shared paper
- Ryan Alan Brown, MD1 shared paper
Recent publications by Dr. Williams
Catheter Cardiovasc Interv
JACC Cardiovasc Imaging
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right interventional cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marcus Lejon Williams received $2,310 in industry payments from 2016 to 2025
CMS Open Payments shows 73 general payments to Dr. Williams from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Boston Scientific Corporation paid the most, $874.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
- Food and beverage$2,29799%
- Education$121%
Companies that paid Dr. Williams 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. Marcus Lejon Williams graduated from Weill Cornell Medicine
Dr. Williams graduated from Weill Cornell Medicine in 2001.
- Medical school
- Board certified in cardiovascular disease
- Board certified in interventional cardiology
Source: Dmand AI Professional Profile Data
Dr. Marcus Lejon Williams accepts plans from 16 insurance carriers
Dr. Williams is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Williams accepts, by number of carriers
- Medicare11
- PPO11
- HMO9
- EPO5
- POS5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Marcus Lejon Williams'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 National Downloadable File (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Marcus Lejon Williams
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 Lejon Williams' NPI number?
Dr. Marcus Lejon Williams' NPI number is 1417026436. It was assigned on November 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus Lejon Williams?
Dr. Marcus Lejon Williams is an interventional cardiologist in Decatur, Georgia. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Marcus Lejon Williams practice?
Dr. Williams practices at 101 W Ponce De Leon Ave, Decatur, GA 30030. Dr. Williams' primary practice is Emory Specialty Associates in Decatur, Georgia. Dmand AI also links Dr. Williams to 4 hospitals, 3 medical groups and 1 group practice or clinic.
What is Dr. Marcus Lejon Williams' office phone number?
The practice phone on file for Dr. Williams is (404) 778-4888.
What is Dr. Marcus Lejon Williams' medical license number?
Dr. Williams holds California license A98711, one of the licenses on file in 4 states.
Which states has Dr. Marcus Lejon Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (2007 to 2026), Georgia (2003 to 2027), Alabama (2011 to 2014) and New York (2003 to 2005).
Which hospitals is Dr. Marcus Lejon Williams affiliated with?
Dr. Williams is affiliated with Emory University Hospital. Dmand AI links Dr. Williams to 4 more hospitals.
What medical group is Dr. Marcus Lejon Williams part of?
Dr. Williams is linked to Emory Healthcare. Dmand AI links Dr. Williams to 3 more medical groups.
Does Dr. Marcus Lejon Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 5,058 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. Marcus Lejon Williams see?
CMS counts 1,150 Medicare patients who saw Dr. Williams in 2024, with an average age of 75.
Show 9 more questionsShow fewer questions
Is Dr. Marcus Lejon Williams board certified?
Yes. Dr. Williams is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Marcus Lejon Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and heart test or procedure (93010).
Where did Dr. Marcus Lejon Williams go to medical school?
Dr. Williams graduated from Weill Cornell Medicine in 2001.
What drugs does Dr. Marcus Lejon Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Eliquis, Furosemide and Clopidogrel.
Has Dr. Marcus Lejon Williams received payments from drug or device companies?
CMS Open Payments shows $2,310 in general payments to Dr. Williams from 24 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Marcus Lejon Williams been practicing?
Dr. Williams graduated from medical school in 2001, 25 years ago.
Does Dr. Marcus Lejon Williams do research?
Dmand AI links 5 publications to Dr. Williams, published from 2010 to 2022.
Who does Dr. Marcus Lejon Williams publish with?
Dr. Williams' most frequent co-authors are Richmond Augustine Akatue, MD (1 shared paper), Colin MacLeod Barker, MD (1 shared paper) and Ryan Alan Brown, MD (1 shared paper).
What insurance does Dr. Marcus Lejon Williams accept?
Dr. Williams is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
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