Dr. David Gruenberg, MD
9 Village Sq, Chelmsford, MA 01824 • +1-356-555-9066
Medical Education: Accredited U.S. Medical School (Class of 2001)
What This Doctor Actually Performs: CMS Medicare Utilization & Chelmsford Percentiles
NPI #1386773422 • CBSA Regional • Allergy/ Immunology
Anchored in Chelmsford, MA 01824, Dr. David Gruenberg, MD (NPI 1386773422) logged 3,345 annual procedures (mid-cohort balanced caseload (50th Chelmsford percentile), 59.26th MA percentile, -0.26σ) with sub-specialty concentration in 28 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1386773422 highlights 1486 annual claims for 99214 (50th Chelmsford percentile; $47–$64 self-pay corridor) plus 859 encounters under 99213 and 429 under 93000.
Cash-pay intake data for NPI 1386773422 (9 Village Sq, Chelmsford) indicates $224.00 typical out-of-pocket visit spend against a $224.00 locality benchmark, paired with 16-minute average reception wait and 4.59/5 biomarker openness.
Clinical background for Dr. Gruenberg (MD, NPI #1386773422) includes accredited doctoral training (2001, 25 yrs in practice) and dedicated on-site consultations at 9 Village Sq.
Compared against Chelmsford, MA Allergy/ Immunology peers
3,345 annual services across 234 beneficiaries
Standard deviations from MA Allergy/ Immunology 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 | 1,486 | 50th | $47 – $64 |
| 99213 | Established Preventive & Chronic Care Visit | 859 | 49th | $36 – $51 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 429 | 50th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 330 | 46th | $55 – $75 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 198 | 54th | $65 – $89 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (28 HCPCS billing breadth) | 42 | 50th | $45 – $65 |
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Dr. David Gruenberg, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Gruenberg National Provider Identifier | NPI #1386773422 (MD) | CMS NPPES Registry (01824) |
| Dr. Gruenberg Chelmsford CMS Volume Rank | 50.00th Pct (3,345 CMS svcs; Z -0.261σ) | CMS Medicare Part B (MA Allergy/ Immunology) |
| Fair Cash-Pay New-Patient Benchmark | $224.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Chelmsford, MA) |
| Waiting-Room Wait Time & Cash Friendliness | $224.00 avg paid • 16 min lobby wait | 12 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.59/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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