Dr. Mary Pieprzak, MD
5999 Harpers Farm Rd Ste W250, Columbia, MD 21044 • +1-808-555-6122
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Columbia Percentiles
NPI #1326046202 • CBSA Regional • Nephrology
Operating out of Columbia, MD (5999 Harpers Farm Rd Ste W250), Nephrology clinician Dr. Mary Pieprzak, MD (accredited MD/DO training, 1996) maintains a mid-cohort balanced caseload (50th Columbia percentile) (52.12th MD percentile; Z-score -0.16σ across 1,768 documented services) with sub-specialty concentration in 23 Active CMS HCPCS Codes.
Procedural volume for Dr. Pieprzak is led by HCPCS 99214 (Chronic Kidney Disease eGFR, uACR & Electrolyte Management — 849 annual services, $234–$321 GPCI cash estimate), followed by CPT 90960 (Monthly Adult ESRD Renal Replacement Oversight, 389/yr) and CPT 99215 (High-Complexity Cardiorenal & Resistant Hypertension Visit, 318/yr).
Self-pay new patient consultations with Dr. Pieprzak (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 10-minute average reception wait, and a 4.43/5 modern protocol openness score across 22 patient logs.
Credentialed as an MD specialist with 30 years post-graduation experience since completing medical school at an LCME/COCA institution (1996), Dr. Pieprzak coordinates 23 Active CMS HCPCS Codes workups from 5999 Harpers Farm Rd Ste W250 (+1-808-555-6122).
Compared against Columbia, MD Nephrology peers
1,768 annual services across 564 beneficiaries
Standard deviations from MD Nephrology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Chronic Kidney Disease eGFR, uACR & Electrolyte Management | 849 | 50th | $234 – $321 |
| 90960 | Monthly Adult ESRD Renal Replacement Oversight | 389 | 52th | $469 – $642 |
| 99215 | High-Complexity Cardiorenal & Resistant Hypertension Visit | 318 | 46th | $342 – $468 |
| 99204 | New Patient Nephrology & Proteinuria Consultation | 212 | 49th | $322 – $442 |
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Dr. Mary Pieprzak, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Pieprzak National Provider Identifier | NPI #1326046202 (MD) | CMS NPPES Registry (21044) |
| Dr. Pieprzak Columbia CMS Volume Rank | 50.00th Pct (1,768 CMS svcs; Z -0.157σ) | CMS Medicare Part B (MD Nephrology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Columbia, MD) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 10 min lobby wait | 22 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.60/5 Listening • 4.43/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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