Dr. Mark Diehl, DO
40 V-Twin DR, Suite 205, Gettysburg, PA 17325 • +1-942-555-8669
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Gettysburg Percentiles
NPI #1982667754 • CBSA Regional • Rheumatology
Operating out of Gettysburg, PA (40 V-Twin DR, Suite 205), Rheumatology clinician Dr. Mark Diehl, DO (accredited MD/DO training, 1996) maintains a top-decile high-throughput specialist (99th percentile in Gettysburg) (41.67th PA percentile; Z-score -0.48σ across 24,173 documented services) with sub-specialty concentration in 23 Active CMS HCPCS Codes.
Among 6 tracked CMS fee-schedule codes for Dr. Diehl (averaging 41.4 services per beneficiary), 99214 (Autoimmune Arthritis & Biologic/DMARD Safety Evaluation) represents 2% of tracked volume (530 encounters), paired with 20610 (242x).
For out-of-network patients contacting +1-942-555-8669, Dr. Diehl's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.84/5 composite reality score over 19 submissions).
Patients evaluating Dr. Mark Diehl in ZIP 17325 note 30 years of post-doctoral tenure (null, 1996) alongside 41.4 annual CMS procedures per patient.
Top 10% Rheumatology volume leader in Gettysburg, PA
24,173 annual services across 584 beneficiaries
Standard deviations from PA 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 | 530 | 99th | $45 – $62 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 242 | 98th | $36 – $51 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 173 | 97th | $62 – $85 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 115 | 99.5th | $47 – $65 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 92 | 94th | $62 – $85 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (23 HCPCS billing breadth) | 23,020 | 99th | $45 – $65 |
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Dr. Mark Diehl, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Diehl National Provider Identifier | NPI #1982667754 (DO) | CMS NPPES Registry (17325) |
| Dr. Diehl Gettysburg CMS Volume Rank | 99.00th Pct (24,173 CMS svcs; Z -0.479σ) | CMS Medicare Part B (PA Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Gettysburg, PA) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 21 min lobby wait | 19 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.60/5 Listening • 4.44/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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