Dr. Marlene Williams, MD
4940 Eastern Ave, Baltimore, MD 21224 • +1-336-555-9478
Medical Education: Accredited U.S. Medical School (Class of 1999)
What This Doctor Actually Performs: CMS Medicare Utilization & Baltimore Percentiles
NPI #1164450599 • CBSA Regional • Cardiology
Within the Baltimore, MD (CBSA local) Cardiology cohort, Dr. Marlene Williams, MD with sub-specialty concentration in 41 Active CMS HCPCS Codes ranks at the 64.22th municipal percentile and 43.97th MD percentile (-0.23σ Z-score) based on 3,559 billed procedures for 1,606 patients.
Among 5 tracked CMS fee-schedule codes for Dr. Williams (averaging 2.2 services per beneficiary), 99214 (Established Cardiology Consultation & Hemodynamic Review) represents 38% of tracked volume (1352 encounters), paired with 93000 (997x).
Direct cash-pay transparency modeling sets Dr. Williams's baseline new-consult rate near $209.00 in Baltimore, MD (cash-pay accepted, hybrid in-clinic and telehealth video consults, 19-minute average reception wait).
NPI registry verification (#1164450599) confirms Dr. Marlene Williams's MD standing serving CBSA 21224 with a 4.62/5 patient scorecard.
Compared against Baltimore, MD Cardiology peers
3,559 annual services across 1,606 beneficiaries
Standard deviations from MD Cardiology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Established Cardiology Consultation & Hemodynamic Review | 1,352 | 64.22th | $67 – $92 |
| 93000 | 12-Lead Resting Electrocardiogram (ECG) w/ Interpretation | 997 | 66.22th | $26 – $41 |
| 93306 | Complete Transthoracic Echocardiography w/ Doppler & Color Flow | 641 | 63.22th | $125 – $172 |
| 93224 | 24-Hour Ambulatory ECG Rhythm Monitoring & Analysis | 356 | 59.22th | $79 – $108 |
| 99204 | Comprehensive New Patient Cardiovascular Risk Evaluation | 214 | 62.22th | $96 – $132 |
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Dr. Marlene Williams, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Williams National Provider Identifier | NPI #1164450599 (MD) | CMS NPPES Registry (21224) |
| Dr. Williams Baltimore CMS Volume Rank | 64.22th Pct (3,559 CMS svcs; Z -0.234σ) | CMS Medicare Part B (MD Cardiology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Baltimore, MD) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 19 min lobby wait | 13 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.56/5 Listening • 4.40/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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