Dr. Donald Mangum, MD
2115 S Fremont Ave, Suite 3300, Springfield, MO 65804 • +1-615-555-2919
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Springfield Percentiles
NPI #1679641799 • CBSA Regional • Gastroenterology
Operating out of Springfield, MO (2115 S Fremont Ave, Suite 3300), Gastroenterology clinician Dr. Donald Mangum, MD (accredited MD/DO training, 2008) maintains a focused low-volume boutique caseload (18.18th Springfield percentile) (13.14th MO percentile; Z-score -0.46σ across 750 documented services) with sub-specialty concentration in 44 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 2115 S Fremont Ave, Suite 3300 shows Dr. Donald Mangum's primary concentration in Established Gastroenterology, GERD & IBD Evaluation (code 99214: 278x/yr, 18.18th local percentile) alongside Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy (45380: 188x/yr, $530–$726).
Direct cash-pay transparency modeling sets Dr. Mangum's baseline new-consult rate near $209.00 in Springfield, MO (cash-pay accepted, hybrid in-clinic and telehealth video consults, 13-minute average reception wait).
Clinical background for Dr. Mangum (MD, NPI #1679641799) includes accredited doctoral training (2008, 18 yrs in practice) and virtual + in-office availability across MO.
Compared against Springfield, MO Gastroenterology peers
750 annual services across 558 beneficiaries
Standard deviations from MO Gastroenterology 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 Gastroenterology, GERD & IBD Evaluation | 278 | 18.18th | $220 – $301 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 188 | 13.18th | $530 – $726 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 158 | 18.18th | $440 – $603 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 75 | 20.18th | $590 – $808 |
| 99204 | New Patient Digestive & Hepatology Consultation | 53 | 19.18th | $310 – $425 |
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Dr. Donald Mangum, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mangum National Provider Identifier | NPI #1679641799 (MD) | CMS NPPES Registry (65804) |
| Dr. Mangum Springfield CMS Volume Rank | 18.18th Pct (750 CMS svcs; Z -0.457σ) | CMS Medicare Part B (MO Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Springfield, MO) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 13 min lobby wait | 13 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.71/5 Listening • 4.94/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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