Dr. Mary Hammock, MD
725 Glenwood DR, Suite 480, Chattanooga, TN 37404 • +1-218-555-1850
Medical Education: Accredited U.S. Medical School (Class of 1994)
What This Doctor Actually Performs: CMS Medicare Utilization & Chattanooga Percentiles
NPI #1174509640 • CBSA Regional • Internal Medicine
Within the Chattanooga, TN (CBSA local) Internal Medicine cohort, Dr. Mary Hammock, MD with sub-specialty concentration in 62 Active CMS HCPCS Codes ranks at the 63.1th municipal percentile and 63.46th TN percentile (-0.14σ Z-score) based on 2,901 billed procedures for 249 patients.
Dr. Hammock's longitudinal care intensity (11.7 billed units per patient across 249 individuals) centers on 99214 (1211 annual units) and 99213 ($36–$51 cash range).
Uninsured and high-deductible cash patients visiting Dr. Mary Hammock in Chattanooga (37404) face an estimated $201.00 initial evaluation fee at 725 Glenwood DR, Suite 480 (hybrid in-clinic and telehealth video consults; 21-minute average reception wait; bedside manner 4.68/5 from 17 verified reports).
NPI registry verification (#1174509640) confirms Dr. Mary Hammock's MD standing serving CBSA 37404 with a 4.70/5 patient scorecard.
Compared against Chattanooga, TN Internal Medicine peers
2,901 annual services across 249 beneficiaries
Standard deviations from TN 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 | 1,211 | 63.1th | $47 – $65 |
| 99213 | Established Preventive & Chronic Care Visit | 700 | 67.1th | $36 – $51 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 350 | 63.1th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 269 | 64.1th | $55 – $76 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 162 | 66.1th | $66 – $90 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (62 HCPCS billing breadth) | 209 | 63.1th | $45 – $65 |
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Dr. Mary Hammock, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Hammock National Provider Identifier | NPI #1174509640 (MD) | CMS NPPES Registry (37404) |
| Dr. Hammock Chattanooga CMS Volume Rank | 63.10th Pct (2,901 CMS svcs; Z -0.139σ) | CMS Medicare Part B (TN Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $201.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Chattanooga, TN) |
| Waiting-Room Wait Time & Cash Friendliness | $201.00 avg paid • 21 min lobby wait | 17 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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