Dr. Aaron Flanders, MD
What this data tells you about Dr. Flanders
Dr. Aaron Flanders is a hematology & oncology specialist in Tallahassee, FL, with 18 years of NPI registration. Based on federal Medicare data, Dr. Flanders performed 385,686 Medicare services across 8,065 unique beneficiaries.
Between the years covered by Open Payments, Dr. Flanders received a total of $18,677 from 95 pharmaceutical and/or device companies across 1016 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. 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. Flanders 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.
Florida License Status
FL DOH · MQA| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 169205 | Clear | January 31, 2028 | — |
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 |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
155,250 | $1 | $2 |
| Darbepoetin injection (Aranesp) for anemia An injection of darbepoetin alfa used for non-end-stage renal disease purposes. |
32,070 | $2 | $6 |
| Denosumab injection (Prolia/Xgeva) | 27,420 | $18 | $47 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
25,500 | $0 | $1 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
21,601 | $0 | $1 |
| Daratumumab injection (Darzalex) An injection containing daratumumab and hyaluronidase-fihj administered under the skin. |
15,840 | $38 | $100 |
| Pembrolizumab injection (Keytruda) | 15,000 | $43 | $105 |
| Oxaliplatin chemotherapy injection This procedure involves the administration of oxaliplatin, a chemotherapy medication, via injection. The dosage specified is 0.5 mg. |
13,800 | $0 | $1 |
| Paclitaxel chemotherapy injection | 13,010 | $0 | $1 |
| Anti-nausea injection (aprepitant) | 11,050 | $1 | $4 |
| Injection, durvalumab, 10 mg | 9,900 | $62 | $160 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
6,590 | $0 | $1 |
| Eflapegrastim injection, 0.1 mg An injection of eflapegrastim-xnst administered at a dose of 0.1 mg. |
4,502 | $25 | $49 |
| Rituximab biosimilar injection, 10 mg An injection of rituximab-abbs, a biosimilar medication, administered in a 10 mg dose. |
4,200 | $34 | $147 |
| Injection, granisetron hydrochloride, 100 mcg | 3,381 | $0 | $1 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
3,281 | $8 | $13 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
2,995 | $8 | $68 |
| Anti-nausea injection (Aloxi/palonosetron) | 2,640 | $1 | $2 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
2,402 | $10 | $68 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,342 | $90 | $260 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
1,209 | $21 | $100 |
| Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg | 987 | $3 | $40 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
918 | $93 | $701 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
880 | $10 | $75 |
| Cetirizine hydrochloride injection, 0.5 mg An injection containing 0.5 mg of cetirizine hydrochloride, an antihistamine medication. |
820 | $11 | $30 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
544 | $1 | $1 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
468 | $2 | $8 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
456 | $133 | $297 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
385 | $6 | $35 |
| Cisplatin chemotherapy injection, 10 mg Administration of a 10 mg dose of cisplatin, a chemotherapy medication, via injection. |
371 | $2 | $4 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 345 | $134 | $450 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
342 | $2 | $6 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
312 | $45 | $150 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
297 | $1 | $7 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
290 | $46 | $120 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
271 | $21 | $150 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
260 | $60 | $157 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
259 | $29 | $68 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
233 | $15 | $55 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
212 | $52 | $350 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
194 | $85 | $523 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
188 | $1 | $5 |
| Injection, leucovorin calcium, per 50 mg | 184 | $4 | $8 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
174 | $11 | $75 |
| PSA test (prostate cancer screening) | 171 | $18 | $60 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
161 | $233 | $697 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
159 | $91 | $212 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
154 | $9 | $207 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
152 | $9 | $44 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
137 | $23 | $235 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 | 131 | $20 | $75 |
| New patient office visit, complex (60-74 min) | 127 | $155 | $500 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
123 | $13 | $50 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
121 | $12 | $75 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
120 | $7 | $80 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
116 | $23 | $220 |
| Red blood cell folate level test A blood test that measures the amount of folic acid stored inside red blood cells to assess long-term folate status. |
108 | $17 | $50 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
108 | $2 | $2 |
| Normal saline infusion, 500 ml Administration of sterile normal saline solution through an intravenous line. This procedure involves the infusion of a 500 ml unit of the solution. |
101 | $1 | $1 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
100 | $6 | $22 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
97 | $14 | $50 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
94 | $3 | $7 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
92 | $3 | $10 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
77 | $16 | $43 |
| Anti-nausea injection (ondansetron/Zofran) | 70 | $0 | $15 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
68 | $18 | $75 |
| Mannitol 25% injection, 50 ml Administration of a 50 ml dose of 25% mannitol solution via injection. |
65 | $3 | $10 |
| CA 19-9 tumor antigen test A blood test that measures the level of CA 19-9, a substance that can be found in the blood of some people with cancer. This quantitative analysis detects and measures the specific tumor antigen. |
60 | $20 | $60 |
| Intravenous push injection of new drug or substance A healthcare provider injects a new medication or substance directly into a vein using a push technique. |
58 | $41 | $300 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
53 | $116 | $400 |
| IV chemotherapy initiation with community continuation Initiation of an intravenous chemotherapy infusion in a clinic using clinic supplies, with continuation of the infusion in a community setting such as home or assisted living. |
50 | $170 | $555 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
45 | $73 | $350 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
45 | $35 | $201 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
44 | $132 | $380 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
33 | $60 | $300 |
| Normal saline infusion, 250 cc Administration of 250 cubic centimeters of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater fluid. |
32 | $1 | $1 |
| CT scan of abdomen with contrast A CT scan of the abdomen using a contrast dye to create detailed images of internal organs and structures. |
25 | $173 | $650 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
24 | $118 | $700 |
| CT scan of head/brain with and without contrast A CT scan of the head or brain performed using contrast dye both before and after its administration to capture detailed images. |
23 | $108 | $443 |
| CT scan of neck soft tissue with contrast A computed tomography scan that uses contrast dye to create detailed images of the soft tissues in the neck. |
23 | $99 | $698 |
| Tumor marker analysis A laboratory test that analyzes a sample to detect the presence of tumor markers. These markers are substances that may be found in the blood, urine, or body tissues. |
21 | $20 | $40 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
19 | $8 | $27 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
17 | $26 | $150 |
| Irrigation of implanted venous access device This procedure involves flushing an implanted venous access device to clear blockages or maintain patency. It ensures the device remains functional for delivering medications or fluids. |
16 | $19 | $115 |
| Quadrivalent influenza vaccine, cell-culture derived A flu shot containing four strains of influenza virus, produced using cell culture technology rather than eggs. This formulation is free from preservatives and antibiotics. |
15 | $33 | $60 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
15 | $61 | $140 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
15 | $29 | $60 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
14 | $146 | $629 |
| Prolonged office E/M service, first 15 minutes This code is used for additional time spent by a physician beyond the maximum required time of a primary office or outpatient evaluation and management service. It is billed in 15-minute increments based on total time spent on the date of the primary service. |
14 | $25 | $48 |
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 (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 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. Flanders is a mixed practice specialist, with above-average Medicare volume (top 0% in FL), with low-engagement industry engagement, with 18 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
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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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