Dr. Marcellus Walker, MD
2094 Pitkin Ave, Brooklyn, NY 11207 • +1-789-555-1374
Medical Education: Accredited U.S. Medical School (Class of 2007)
What This Doctor Actually Performs: CMS Medicare Utilization & Brooklyn Percentiles
NPI #1003038274 • CBSA Regional • Internal Medicine
Dr. Marcellus Walker, MD (NPI #1003038274) practices Internal Medicine in Brooklyn, NY (11207) with sub-specialty concentration in 51 Active CMS HCPCS Codes, recording 755 annual CMS services across 352 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (9.93th Brooklyn percentile) (-0.21σ vs NY state mean, 11.5th statewide percentile).
Medicare Part B line-item claims for Dr. Marcellus Walker (11207) place 99214 at the top of the practice ledger (329 yearly units, 12th metro rank), rounded out by 99213 and 93000.
Self-pay new patient consultations with Dr. Walker (CPT 99204 GPCI-adjusted benchmark) estimate around $232.00 (community reported average: $232.00) with in-person clinic visits only, 12-minute average reception wait, and a 4.52/5 modern protocol openness score across 12 patient logs.
Patients evaluating Dr. Marcellus Walker in ZIP 11207 note 19 years of post-doctoral tenure (null, 2007) alongside 2.1 annual CMS procedures per patient.
Compared against Brooklyn, NY Internal Medicine peers
755 annual services across 352 beneficiaries
Standard deviations from NY Internal Medicine 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 | 329 | 12th | $133 – $182 |
| 99213 | Established Preventive & Chronic Care Visit | 190 | 12th | $102 – $140 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 95 | 12th | $49 – $67 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 73 | 12th | $156 – $214 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 44 | 12th | $185 – $254 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (51 HCPCS billing breadth) | 25 | 9.93th | $120 – $174 |
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Dr. Marcellus Walker, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Walker National Provider Identifier | NPI #1003038274 (MD) | CMS NPPES Registry (11207) |
| Dr. Walker Brooklyn CMS Volume Rank | 9.93th Pct (755 CMS svcs; Z -0.210σ) | CMS Medicare Part B (NY Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $232.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Brooklyn, NY) |
| Waiting-Room Wait Time & Cash Friendliness | $232.00 avg paid • 12 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.71/5 Listening • 4.52/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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