Dr. Mary Elfrey, DO
3407 Wilkens Ave Ste 300, Baltimore, MD 21229 • +1-357-555-3055
Medical Education: Accredited U.S. Medical School (Class of 1998)
What This Doctor Actually Performs: CMS Medicare Utilization & Baltimore Percentiles
NPI #1760645519 • CBSA Regional • Cardiology
Within the Baltimore, MD (CBSA local) Cardiology cohort, Dr. Mary Elfrey, DO with sub-specialty concentration in 36 Active CMS HCPCS Codes ranks at the 58.72th municipal percentile and 37.53th MD percentile (-0.35σ Z-score) based on 2,980 billed procedures for 974 patients.
Medicare Part B line-item claims for Dr. Mary Elfrey (21229) place 99214 at the top of the practice ledger (1132 yearly units, 58.72th metro rank), rounded out by 93000 and 93306.
Uninsured and high-deductible cash patients visiting Dr. Mary Elfrey in Baltimore (21229) face an estimated $209.00 initial evaluation fee at 3407 Wilkens Ave Ste 300 (in-person clinic visits only; 21-minute average reception wait; bedside manner 4.72/5 from 21 verified reports).
Clinical background for Dr. Elfrey (DO, NPI #1760645519) includes accredited doctoral training (1998, 28 yrs in practice) and dedicated on-site consultations at 3407 Wilkens Ave Ste 300.
Compared against Baltimore, MD Cardiology peers
2,980 annual services across 974 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 | 1,132 | 58.72th | $139 – $190 |
| 93000 | 12-Lead Resting Electrocardiogram (ECG) w/ Interpretation | 834 | 59.72th | $54 – $74 |
| 93306 | Complete Transthoracic Echocardiography w/ Doppler & Color Flow | 536 | 61.72th | $259 – $356 |
| 93224 | 24-Hour Ambulatory ECG Rhythm Monitoring & Analysis | 298 | 62.72th | $163 – $223 |
| 99204 | Comprehensive New Patient Cardiovascular Risk Evaluation | 179 | 62.72th | $199 – $273 |
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Dr. Mary Elfrey, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Elfrey National Provider Identifier | NPI #1760645519 (DO) | CMS NPPES Registry (21229) |
| Dr. Elfrey Baltimore CMS Volume Rank | 58.72th Pct (2,980 CMS svcs; Z -0.348σ) | 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 • 21 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.72/5 Listening • 4.83/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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