Dr. Calvin Day, M.D.
What this data tells you about Dr. Day
Dr. Calvin Day is a procedural dermatology physician in San Antonio, TX, with 18 years in practice. Based on federal Medicare data, Dr. Day performed 2,727 Medicare services across 1,562 unique beneficiaries.
Between the years covered by Open Payments, Dr. Day received a total of $1,535 from 15 pharmaceutical and/or device companies across 44 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in procedural dermatology physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Day is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Destruction of precancerous skin growths, 2-14 | 882 | $5 | $8 |
| Office visit, established patient (20-29 min) | 489 | $63 | $111 |
| Destruction of skin growths (warts/lesions), 1-14 | 260 | $77 | $139 |
| Destruction of precancerous skin growth, 1 | 232 | $31 | $81 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | 157 | $430 | $825 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 108 | $314 | $502 |
| Skin biopsy, tangential | 91 | $62 | $126 |
| Destruction of precancer skin growth, 15 or more growths | 87 | $128 | $203 |
| Office visit, established patient (10-19 min) | 80 | $40 | $68 |
| New patient office visit (30-44 min) | 78 | $77 | $137 |
| Biopsy of related skin growth, each additional growth | 43 | $38 | $65 |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | 30 | $170 | $378 |
| Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm | 25 | $153 | $303 |
| Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less | 23 | $551 | $934 |
| New patient office or other outpatient visit, 15-29 minutes | 23 | $55 | $89 |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm | 19 | $134 | $388 |
| Office visit, established patient (30-39 min) | 19 | $96 | $158 |
| Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks | 17 | $447 | $775 |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 5.1-7.5 cm | 15 | $139 | $452 |
| Removal of cancer skin growth of body, arms, or legs, 0.6-1.0 cm | 13 | $137 | $284 |
| Removal of tissue from wound, 20.0 sq cm or less | 13 | $77 | $123 |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm | 12 | $144 | $412 |
| Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less | 11 | $750 | $1,216 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (94%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
2.2 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Day is a clinical cardiology specialist, with moderate Medicare volume, and low-engagement industry engagement, with 18 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Day experienced with destruction of precancerous skin growths, 2-14?
Does Dr. Day receive payments from pharmaceutical companies?
How do Dr. Day's costs compare to other procedural dermatology physicians in San Antonio?
What does Data Coverage mean?
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Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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