DR. MARCUS LEJON WILLIAMS (MD) – Interventional Cardiology Physician, NPI 1417026436
Interventional Cardiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,010 CARDIOVASCULAR DISEASE (CARDIOLOGY) in CA
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Provider Addresses for DR. MARCUS LEJON WILLIAMS (MD)
FILE # 54433
LOS ANGELES, CA 900740001
Phone:
Type: Mailing
North Torrey Pines Road, La Jolla Farms, Torrey Pines, San Diego, San Diego County, California, 92093, United States
LA JOLLA, CA 920371027
Phone: (858) 554-5257
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 13 Open Payments records for all available years, with a total value of $574.
Total Amount is formed as General ($574) + Research ($0) + Ownership ($0) = $574.
Last reported payment date: 2024-10-25 • Largest payer in this snapshot: Boston Scientific Corporation ($416).
Total Amount
$574
General + Research + Ownership
Payments
13
Total payment records
General Amount
$574
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-25
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-01-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20070108000413 | I | Cardiovascular Disease (Cardiology) | GA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 953 | 382 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 543 | 373 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 470 | 452 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 368 | 281 | $0 |
| J2785 | Injection, regadenoson, 0.1 mg | 352 | 88 | $0 |
Insurance plans in this area (ZIP 90074)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 58 | 58 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 85610 | Blood test, clotting time | 410 | 44 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 93458 | Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart | 46 | 45 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 24 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Certified Registered Nurse Anesthetist (Crna) | GA | |
| Anesthesiology Assistant | GA | |
| Certified Registered Nurse Anesthetist (Crna) | GA | |
| Internal Medicine, Infectious Disease | GA | |
| - | GA | |
| - | GA | |
| Physician Assistant | GA | |
| Certified Registered Nurse Anesthetist (Crna) | FL | |
| N E U R O L O G Y | GA |
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