Dr. William Holgerson, MD
40 Walnut Street, Suite 201, Wellesley, MA 02481 • +1-787-555-8447
Medical Education: Accredited U.S. Medical School (Class of 1995)
What This Doctor Actually Performs: CMS Medicare Utilization & Wellesley Percentiles
NPI #1356445829 • CBSA Regional • Internal Medicine
Operating out of Wellesley, MA (40 Walnut Street, Suite 201), Internal Medicine clinician Dr. William Holgerson, MD (accredited MD/DO training, 1995) maintains a upper-quartile active clinical volume (72.22th Wellesley percentile) (80.7th MA percentile; Z-score +0.08σ across 2,747 documented services) with sub-specialty concentration in 34 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 40 Walnut Street, Suite 201 shows Dr. William Holgerson's primary concentration in Moderate-to-High Complexity Internal Medicine Follow-Up (code 99214: 1149x/yr, 72.22th local percentile) alongside Established Preventive & Chronic Care Visit (99213: 664x/yr, $81–$111).
Cash-pay intake data for NPI 1356445829 (40 Walnut Street, Suite 201, Wellesley) indicates $224.00 typical out-of-pocket visit spend against a $224.00 locality benchmark, paired with 20-minute average reception wait and 4.74/5 biomarker openness.
Patients evaluating Dr. William Holgerson in ZIP 02481 note 31 years of post-doctoral tenure (null, 1995) alongside 8.0 annual CMS procedures per patient.
Compared against Wellesley, MA Internal Medicine peers
2,747 annual services across 342 beneficiaries
Standard deviations from MA 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 | 1,149 | 72.22th | $106 – $145 |
| 99213 | Established Preventive & Chronic Care Visit | 664 | 69.22th | $81 – $111 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 332 | 70.22th | $39 – $54 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 255 | 74.22th | $124 – $170 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 153 | 75.22th | $147 – $202 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (34 HCPCS billing breadth) | 194 | 72.22th | $95 – $138 |
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Dr. William Holgerson, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Holgerson National Provider Identifier | NPI #1356445829 (MD) | CMS NPPES Registry (02481) |
| Dr. Holgerson Wellesley CMS Volume Rank | 72.22th Pct (2,747 CMS svcs; Z +0.078σ) | CMS Medicare Part B (MA Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $224.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Wellesley, MA) |
| Waiting-Room Wait Time & Cash Friendliness | $224.00 avg paid • 20 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.80/5 Listening • 4.74/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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