Dr. Donald Massenburg, MD
3021 Voyager DR, Green Bay, WI 54311 • +1-233-555-4905
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Green Bay Percentiles
NPI #1932118536 • CBSA Regional • Rheumatology
Dr. Donald Massenburg, MD (NPI #1932118536) practices Rheumatology in Green Bay, WI (54311) with sub-specialty concentration in 20 Active CMS HCPCS Codes, recording 1,283 annual CMS services across 159 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (0th Green Bay percentile) (-0.60σ vs WI state mean, 21.43th statewide percentile).
Medicare Part B line-item claims for Dr. Donald Massenburg (54311) place 99214 at the top of the practice ledger (590 yearly units, 12th metro rank), rounded out by 20610 and 96413.
Direct cash-pay transparency modeling sets Dr. Massenburg's baseline new-consult rate near $209.00 in Green Bay, WI (cash-pay accepted, in-person clinic visits only, 12-minute average reception wait).
From 3021 Voyager DR in Green Bay (+1-233-555-4905), Dr. Massenburg, MD (13-year clinical track record) delivers 20 Active CMS HCPCS Codes care.
Compared against Green Bay, WI Rheumatology peers
1,283 annual services across 159 beneficiaries
Standard deviations from WI Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 590 | 12th | $54 – $74 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 269 | 12th | $43 – $58 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 192 | 12th | $74 – $101 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 128 | 12th | $56 – $77 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 103 | 12th | $74 – $101 |
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Dr. Donald Massenburg, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Massenburg National Provider Identifier | NPI #1932118536 (MD) | CMS NPPES Registry (54311) |
| Dr. Massenburg Green Bay CMS Volume Rank | 0.00th Pct (1,283 CMS svcs; Z -0.597σ) | CMS Medicare Part B (WI Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Green Bay, WI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 12 min lobby wait | 24 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.60/5 Listening • 4.83/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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