Medicare Enrolled
Dr. Marisa Sandera, M.D.
Medical Oncology · Boerne, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Sandera from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Sandera
Dr. Marisa Sandera is a medical oncology specialist in Boerne, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Sandera performed 63,891 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Sandera received a total of $16,274 from 79 pharmaceutical and/or device companies across 858 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Sandera is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years of NPI registration
▲ Top 15% volume in TX
$16,274 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗63,891
Medicare services
Top 15% in TX for medical oncology
Not available
Unique patients (not deduplicated)
$5
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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. |
51,750 | $1 | $3 |
| Denosumab injection (Prolia/Xgeva) | 6,960 | $18 | $71 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
1,140 | $0 | $0 |
| 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. |
459 | $91 | $373 |
| 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. |
440 | $8 | $23 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
373 | $10 | $32 |
| 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. |
287 | $22 | $86 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
250 | $8 | $15 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
226 | $101 | $376 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
184 | $13 | $41 |
| Iron level test | 184 | $6 | $19 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
184 | $9 | $26 |
| 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. |
173 | $11 | $47 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
149 | $6 | $68 |
| 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. |
129 | $49 | $185 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
121 | $12 | $58 |
| 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. |
111 | $6 | $18 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
86 | $9 | $28 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
81 | $1 | $3 |
| 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. |
70 | $19 | $57 |
| Injection, fosnetupitant 235 mg and palonosetron 0.25 mg | 70 | $345 | $1,311 |
| 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. |
69 | $61 | $263 |
| 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. |
54 | $50 | $205 |
| 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. |
54 | $2 | $19 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
49 | $6 | $19 |
| 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. |
43 | $25 | $137 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 | 40 | $20 | $62 |
| New patient office visit, complex (60-74 min) | 36 | $169 | $651 |
| 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. |
29 | $125 | $529 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
24 | $61 | $278 |
| 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. |
24 | $140 | $523 |
| 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. |
23 | $62 | $232 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
19 | $15 | $45 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
82.2% high complexity
13.6% medium
4.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$16,274
Total received (2018-2024)
Avg $2,325/year across 7 years
Top 32% in TX for medical oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
79
Companies
858
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,585
2023
$2,847
2022
$2,351
2021
$1,964
2020
$1,652
2019
$2,345
2018
$2,530
Payments by company (2024)
Gilead Sciences, Inc.
$259
Lilly USA, LLC
$217
Daiichi Sankyo Inc.
$146
Karyopharm Therapeutics Inc.
$141
Novartis Pharmaceuticals Corporation
$137
Takeda Pharmaceuticals U.S.A., Inc.
$135
PFIZER INC.
$128
AstraZeneca Pharmaceuticals LP
$114
Genmab U.S., Inc.
$112
E.R. Squibb & Sons, L.L.C.
$95
PUMA BIOTECHNOLOGY, INC.
$89
Bayer Healthcare Pharmaceuticals Inc.
$81
Janssen Biotech, Inc.
$77
Genentech USA, Inc.
$72
Regeneron Healthcare Solutions, Inc.
$69
Merck Sharp & Dohme LLC
$65
GENZYME CORPORATION
$64
Incyte Corporation
$60
Celgene Corporation
$60
Mirati Therapeutics, Inc.
$47
ABBVIE INC.
$46
Rigel Pharmaceuticals, Inc.
$39
Deciphera Pharmaceuticals Inc.
$37
Astellas Pharma US Inc
$35
PharmaEssentia USA Corporation
$34
Spectrum Pharmaceuticals Inc.
$26
BeiGene USA, Inc.
$24
Stemline Therapeutics Inc.
$24
SERVIER PHARMACEUTICALS LLC
$24
ADC Therapeutics America, Inc.
$24
Agios Pharmaceuticals, Inc.
$23
Eisai Inc.
$23
TAIHO ONCOLOGY, INC.
$20
Amneal Pharmaceuticals LLC
$19
Kyowa Kirin, Inc.
$16
Top 3 companies account for 24.1% of 2024 payments
All-time payments by company (2018-2024) ›
Lilly USA, LLC
$1,162
AstraZeneca Pharmaceuticals LP
$1,030
PFIZER INC.
$1,002
Novartis Pharmaceuticals Corporation
$997
E.R. Squibb & Sons, L.L.C.
$884
Genentech USA, Inc.
$793
Karyopharm Therapeutics Inc.
$738
Amgen Inc.
$727
Eisai Inc.
$572
GENZYME CORPORATION
$503
Daiichi Sankyo Inc.
$488
Gilead Sciences, Inc.
$463
Merck Sharp & Dohme Corporation
$407
Seagen Inc.
$397
Puma Biotechnology, Inc.
$374
Janssen Biotech, Inc.
$367
Incyte Corporation
$341
Regeneron Healthcare Solutions, Inc.
$324
Celgene Corporation
$272
Rigel Pharmaceuticals, Inc.
$262
Astellas Pharma US Inc
$242
Takeda Pharmaceuticals U.S.A., Inc.
$237
Genmab U.S., Inc.
$225
Taiho Oncology, Inc.
$184
PUMA BIOTECHNOLOGY, INC.
$160
Merck Sharp & Dohme LLC
$159
EMD Serono, Inc.
$154
Kyowa Kirin, Inc.
$139
EISAI INC.
$139
Bayer Healthcare Pharmaceuticals Inc.
$127
Pharmacosmos Therapeutics Inc.
$113
ADC Therapeutics America, Inc.
$110
Pharmacyclics LLC, An AbbVie Company
$96
PharmaEssentia USA Corporation
$89
Mirati Therapeutics, Inc.
$88
TAIHO ONCOLOGY, INC.
$84
Dova Pharmaceuticals
$83
Exelixis Inc.
$83
BeiGene USA, Inc.
$82
AbbVie, Inc.
$77
GlaxoSmithKline, LLC.
$75
CTI BioPharma Corp.
$73
JAZZ PHARMACEUTICALS INC.
$72
Ipsen Biopharmaceuticals, Inc
$71
Spectrum Pharmaceuticals Inc.
$70
Seattle Genetics, Inc.
$70
AbbVie Inc.
$64
Helsinn Therapeutics (U.S.), Inc.
$56
Apellis Pharmaceuticals, Inc.
$52
Coherus Biosciences Inc.
$50
Stemline Therapeutics Inc.
$48
Janssen Pharmaceuticals, Inc
$48
ABBVIE INC.
$46
SERVIER PHARMACEUTICALS LLC
$46
Bayer HealthCare Pharmaceuticals Inc.
$44
Heron Therapeutics, Inc.
$41
Blueprint Medicines Corporation
$41
Alexion Pharmaceuticals, Inc.
$40
Verastem, Inc.
$37
Deciphera Pharmaceuticals Inc.
$37
MorphoSys, US Inc.
$35
Amneal Pharmaceuticals LLC
$34
Teva Pharmaceuticals USA, Inc.
$29
Secura Bio, Inc.
$28
ARRAY BIOPHARMA INC
$24
Sumitomo Pharma America, Inc.
$23
Agios Pharmaceuticals, Inc.
$23
SOBI, INC
$23
Verity Pharmaceuticals Inc.
$23
Boehringer Ingelheim Pharmaceuticals, Inc.
$22
Alnylam Pharmaceuticals Inc.
$21
Servier Pharmaceuticals LLC
$20
Octapharma USA, Inc.
$20
Jazz Pharmaceuticals Inc.
$19
AVEO Pharmaceuticals, Inc.
$18
Aveo Pharmaceuticals, Inc.
$16
Clovis Oncology, Inc.
$15
Kite Pharma, Inc.
$14
Epizyme, Inc.,
$14
Top 3 companies account for 19.6% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AFINITOR · AKYNZEO · ALIMTA · ALUNBRIG · AVASTIN · AYVAKIT · Abraxane · Alecensa · Avastin · BAVENCIO · BENDEKA · BESREMI · BLENREP · BOSULIF · BRAFTOVI · BRUKINSA · Bavencio · CABLIVI · CABOMETYX · CALQUENCE · CINVANTI · CYRAMZA · Cabometyx · Columvi · Copiktra · DARZALEX · Doptelet · ELITEK · EMEND · EMPLICITI · ENHERTU · ENJAYMO · EPKINLY · ERBITUX · ERLEADA · Empaveli · Enhertu · Epkinly · Erleada · FARESTON · FOTIVDA · FRUZAQLA · Farydak · GAVRETO · GAZYVA · GILOTRIF · GIVLAARI · Gazyva · Halaven · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · INQOVI · Imbruvica · JADENU · JAKAFI · JEVTANA · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · Kyprolis · LIBTAYO · LONSURF · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lonsurf · MEKINIST · MONJUVI · MONOFERRIC · MVASI · MYLOTARG · Monoferric · NERLYNX · NINLARO · Nerlynx · Neulasta · Nplate · OCTAGAM IMMUNE GLOBULIN (HUMAN) · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · Onivyde · Orserdu · PADCEV · PIQRAY · PLUVICTO · POTELIGEO · PROMACTA · Padcev · Perjeta · Pomalyst · Poteligeo · QINLOCK · REBLOZYL · RETEVMO · ROLVEDON · RYDAPT · Revlimid · Rezlidhia · SANCUSO · SANDOSTATIN · SARCLISA · SCEMBLIX · SOLIRIS · SOMATULINE DEPOT · SUTENT · Somatuline Depot · Stivarga · TAGRISSO · TALZENNA · TAZVERIK · TECENTRIQ · TIBSOVO · TUKYSA · Tavalisse · Tecentriq · Tibsovo · Trodelvy · Truxima · Udenyca · VENCLEXTA · VERZENIO · VOTRIENT · VYXEOS · Venclexta · Vitrakvi · Vonjo · Vyloy · XALKORI · XARELTO · XGEVA · XOSPATA · XPOVIO · XTANDI · Xospata · ZEPZELCA
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Medical oncologists in nearby ZIP areas
9
County median income
$110,498
Nearest hospital to ZIP centroid (approximate)
SOUTH TEXAS SPINE AND SURGICAL HOSPITAL
20.1 mi
20.1 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Sandera is a mixed practice specialist, with above-average Medicare volume (top 15% in TX), with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Sandera experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Sandera performed 51,750 iron infusion (injectafer) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Sandera receive payments from pharmaceutical companies?
Yes. Dr. Sandera received a total of $16,274 from 79 companies across 858 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Sandera's costs compare to other medical oncologists in Boerne?
Dr. Sandera's average Medicare payment per service is $5. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Sandera) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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. Data Coverage reflects 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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