Dr. Doreen Cassarino, ARNP
What this data tells you about Dr. Cassarino
Dr. Doreen Cassarino is a physician assistant in Naples, FL, with 19 years in practice. Based on federal Medicare data, Dr. Cassarino performed 13,392 Medicare services across 6,621 unique beneficiaries.
Between the years covered by Open Payments, Dr. Cassarino received a total of $35,136 from 51 pharmaceutical and/or device companies across 821 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in physician assistant. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Cassarino 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 |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 1,920 | $18 | $47 |
| Office visit, established patient (30-39 min) | 1,389 | $75 | $264 |
| Blood draw (venipuncture) | 985 | $8 | $17 |
| Comprehensive metabolic blood panel | 893 | $10 | $21 |
| Lipid panel (cholesterol and triglycerides) | 839 | $13 | $27 |
| Hemoglobin A1c test (diabetes monitoring) | 735 | $10 | $19 |
| Thyroid stimulating hormone (TSH) test | 509 | $16 | $34 |
| Complete blood count (CBC) with differential | 509 | $8 | $16 |
| Vitamin D level test | 501 | $29 | $59 |
| Vitamin B-12 level test | 500 | $15 | $30 |
| Free thyroxine (T4) test | 315 | $9 | $18 |
| Thyroid hormone, t3 measurement, free | 312 | $17 | $34 |
| Annual wellness visit, follow-up | 304 | $111 | $267 |
| Annual depression screening | 302 | $16 | $38 |
| Urine microalbumin test (kidney screening) | 237 | $6 | $12 |
| Creatinine test (kidney function) | 237 | $5 | $10 |
| Ferritin level test (iron stores) | 214 | $13 | $27 |
| Iron level test | 203 | $6 | $13 |
| Iron binding capacity test | 203 | $9 | $17 |
| Electrocardiogram (EKG), 12-lead | 197 | $8 | $30 |
| Folic acid level test | 192 | $14 | $29 |
| Automated urinalysis | 177 | $2 | $4 |
| Drug injection, under skin or into muscle | 170 | $9 | $31 |
| Injection, ketorolac tromethamine, per 15 mg | 160 | $0 | $1 |
| Flu vaccine administration | 134 | $32 | $64 |
| Flu vaccine, high-dose | 131 | $72 | $144 |
| Glutamyltransferase (liver enzyme) level | 110 | $7 | $14 |
| Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous | 109 | $18 | $36 |
| PSA test (prostate cancer screening) | 101 | $18 | $37 |
| Urine culture, bacterial colony count | 92 | $8 | $16 |
| Prostate cancer screening; prostate specific antigen test (psa) | 73 | $19 | $39 |
| Office visit, established patient (20-29 min) | 59 | $48 | $187 |
| Urinalysis, manual | 51 | $3 | $7 |
| Urinalysis with microscopic exam | 49 | $3 | $6 |
| Uric acid level test | 45 | $4 | $9 |
| Injection, methylprednisolone sodium succinate, up to 125 mg | 44 | $4 | $11 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 44 | $1 | $3 |
| Magnesium level test | 43 | $7 | $13 |
| Pneumonia vaccine administration | 36 | $32 | $64 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 35 | $281 | $574 |
| Transitional care management services for problem of high complexity | 33 | $186 | $570 |
| Bacterial culture, aerobic | 29 | $8 | $16 |
| Antibiotic sensitivity test | 29 | $8 | $17 |
| New patient office visit (45-59 min) | 25 | $86 | $347 |
| Basic metabolic blood panel | 21 | $8 | $17 |
| Sed rate test (inflammation marker) | 20 | $3 | $5 |
| C-reactive protein test (inflammation marker) | 18 | $5 | $10 |
| Removal of impacted ear wax by washing | 16 | $13 | $32 |
| Office visit, established patient, complex (40-54 min) | 14 | $113 | $371 |
| Transitional care management services for problem of at least moderate complexity | 14 | $140 | $420 |
| Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 14 | $143 | $343 |
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 ›
The majority of payments (58%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in physician assistant and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for physician assistant in FL.
Geographic Context
3.3 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. Cassarino is a mixed practice specialist, with above-average Medicare volume (top 1% in FL), and high industry engagement (speaking/promotional, top 1%), with 19 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. Cassarino experienced with denosumab injection (prolia/xgeva)?
Does Dr. Cassarino receive payments from pharmaceutical companies?
How do Dr. Cassarino's costs compare to other physician assistants in Naples?
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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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