Dr. William Grier, MD
22 S Greene St, Room N3e09, Baltimore, MD 21201 • +1-374-555-8950
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Baltimore Percentiles
NPI #1740643378 • CBSA Regional • Critical Care (Intensivists)
Within the Baltimore, MD (CBSA local) Critical Care (Intensivists) cohort, Dr. William Grier, MD with sub-specialty concentration in 34 Active CMS HCPCS Codes ranks at the 40th municipal percentile and 35.14th MD percentile (-0.51σ Z-score) based on 765 billed procedures for 300 patients.
Procedural volume for Dr. Grier is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 344 annual services, $122–$167 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 199/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 99/yr).
Self-pay new patient consultations with Dr. Grier (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with in-person clinic visits only, 11-minute average reception wait, and a 4.55/5 modern protocol openness score across 15 patient logs.
NPI registry verification (#1740643378) confirms Dr. William Grier's MD standing serving CBSA 21201 with a 4.88/5 patient scorecard.
Compared against Baltimore, MD Critical Care (Intensivists) peers
765 annual services across 300 beneficiaries
Standard deviations from MD Critical Care (Intensivists) mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 344 | 40th | $122 – $167 |
| 99213 | Established Preventive & Chronic Care Visit | 199 | 40th | $93 – $128 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 99 | 43th | $44 – $61 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 77 | 43th | $143 – $196 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 46 | 36th | $169 – $232 |
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Dr. William Grier, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Grier National Provider Identifier | NPI #1740643378 (MD) | CMS NPPES Registry (21201) |
| Dr. Grier Baltimore CMS Volume Rank | 40.00th Pct (765 CMS svcs; Z -0.513σ) | CMS Medicare Part B (MD Critical Care (Intensivists)) |
| 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 • 11 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.74/5 Listening • 4.55/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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