Medicare Enrolled
Dr. Antonio Santillan-Gomez, M.D.
Gynecologic Oncology Physician · San Antonio, 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. Santillan-Gomez 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. Santillan-Gomez
Dr. Antonio Santillan-Gomez is a gynecologic oncology physician in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Santillan-Gomez performed 23,893 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Santillan-Gomez received a total of $160,235 from 43 pharmaceutical and/or device companies across 328 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. Santillan-Gomez 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.
✓ 19 years of NPI registration
▲ Top 5% volume in TX
$160,235 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗23,893
Medicare services
Top 5% in TX for gynecologic oncology physician
Not available
Unique patients (not deduplicated)
$8
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 |
|---|---|---|---|
| Paclitaxel chemotherapy injection | 10,999 | $0 | $8 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
7,800 | $0 | $5 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
629 | $10 | $64 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
606 | $8 | $20 |
| 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. |
579 | $7 | $36 |
| Anti-nausea injection (Aloxi/palonosetron) | 520 | $1 | $114 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 125 | 471 | $20 | $128 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
434 | $2 | $300 |
| Pegfilgrastim injection, 0.5 mg An injection of pegfilgrastim, a medication that stimulates the production of white blood cells. This specific code applies to the brand-name drug and excludes biosimilar versions. |
324 | $84 | $1,348 |
| 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. |
294 | $91 | $368 |
| 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. |
214 | $59 | $250 |
| 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. |
114 | $20 | $157 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
107 | $93 | $707 |
| 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. |
98 | $121 | $496 |
| 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. |
86 | $47 | $344 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
82 | $21 | $161 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
76 | $11 | $108 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
46 | $1 | $7 |
| Laparoscopic hysterectomy with salpingo-oophorectomy, 250g or less Surgical removal of the uterus, fallopian tubes, and/or ovaries through small abdominal incisions using a camera-guided instrument. The procedure is specified for cases where the removed tissue weighs 250 grams or less. |
40 | $658 | $3,096 |
| Manual white blood cell count A laboratory test that involves examining a sample under a microscope to manually count the number of white blood cells present. |
40 | $4 | $22 |
| 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. |
40 | $6 | $34 |
| 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. |
40 | $125 | $565 |
| New patient office visit, complex (60-74 min) | 40 | $155 | $709 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
38 | $1 | $8 |
| On-body injector for subcutaneous injection A device is applied to the skin to automatically deliver a medication injection under the skin. |
27 | $14 | $96 |
| Intraoperative lymph node imaging Imaging performed during surgery to visualize lymph nodes. |
26 | $154 | $874 |
| Endoscopic biopsy and removal of abdominal lymph nodes A procedure to examine and remove lymph nodes in the abdominal cavity using an endoscope. The endoscope allows the provider to access the area through a small incision. |
25 | $188 | $1,842 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
17 | $73 | $372 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 16 | $83 | $657 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
15 | $961 | $4,802 |
| 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. |
14 | $133 | $694 |
| Endometrial biopsy or polyp removal A procedure to collect a tissue sample from the uterine lining or remove a polyp using a thin, lighted tube inserted through the cervix. |
12 | $167 | $3,661 |
| Transvaginal pelvic ultrasound An ultrasound exam using a probe inserted into the vagina to image the uterus, ovaries, fallopian tubes, cervix, and surrounding pelvic structures. |
12 | $50 | $188 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
12 | $42 | $180 |
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.
1.3% high complexity
85.4% medium
13.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$160,235
Total received (2018-2024)
Avg $22,891/year across 7 years
Top 7% in TX for gynecologic oncology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
43
Companies
328
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
$25,456
2023
$32,141
2022
$28,659
2021
$14,093
2020
$13,148
2019
$35,951
2018
$10,787
Payments by company (2024)
Myriad Genetic Laboratories, Inc.
$17,079
INTUITIVE SURGICAL, INC.
$8,033
Baxter Healthcare
$144
AstraZeneca Pharmaceuticals LP
$60
Merck Sharp & Dohme LLC
$56
Eisai Inc.
$24
CONMED Corporation
$21
Hologic Sales and Service, LLC
$20
PFIZER INC.
$15
Musculoskeletal Transplant Foundation Inc.
$3
Top 3 companies account for 99.2% of 2024 payments
All-time payments by company (2018-2024) ›
Myriad Genetic Laboratories, Inc.
$57,824
Intuitive Surgical, Inc.
$56,728
Medical Device Business Services, Inc.
$28,277
INTUITIVE SURGICAL, INC.
$8,033
AstraZeneca Pharmaceuticals LP
$2,971
Aspira Women's Health Inc
$1,819
Ethicon Inc.
$758
Ethicon US, LLC
$677
Clovis Oncology, Inc.
$399
Takeda Pharmaceuticals U.S.A., Inc.
$349
Amgen Inc.
$277
Eisai Inc.
$163
TESARO, Inc.
$162
Merck Sharp & Dohme Corporation
$161
Memic Innovative Surgery Inc.
$157
Novartis Pharmaceuticals Corporation
$151
Incyte Corporation
$147
Baxter Healthcare
$144
Actelion Pharmaceuticals US, Inc.
$125
Avanos Medical
$117
Boehringer Ingelheim Pharmaceuticals, Inc.
$100
AbbVie, Inc.
$100
Puma Biotechnology, Inc.
$72
SANOFI-AVENTIS U.S. LLC
$60
CONMED Corporation
$58
Merck Sharp & Dohme LLC
$56
Ipsen Biopharmaceuticals, Inc
$40
Hologic, LLC
$36
GENZYME CORPORATION
$34
Helsinn Therapeutics (U.S.), Inc.
$33
Vermillion, Inc.
$30
Hologic Sales and Service, LLC
$20
Janssen Biotech, Inc.
$18
Sobi, Inc
$18
Taiho Oncology, Inc.
$18
Jazz Pharmaceuticals Inc.
$17
Covidien LP
$15
PFIZER INC.
$15
Janssen Pharmaceuticals, Inc
$14
Exelixis Inc.
$14
Seagen Inc.
$14
Bayer HealthCare Pharmaceuticals Inc.
$11
Musculoskeletal Transplant Foundation Inc.
$3
Top 3 companies account for 89.1% of all-time payments
Associated products mentioned in payments ›
AFINITOR · AIRSEAL · AKYNZEO · APTIMA · Aliqopa · COLARIS · Cabometyx · DA VINCI SP · DOPTELET · Da Vinci Surgical System · ECHELON ENDOPATH · ELITEK · EMEND · ENSEAL Product Family · ETHICON · EVICEL · EVICEL Fibrin Sealant (Human) · EXKIVITY · Erleada · HARMONIC Product Family · Hominis Surgical System · IMFINZI · JADENU · JAKAFI · JEVTANA · KANJINTI · KEYTRUDA · Kyprolis · LYNPARZA · Lenvima · LigaSure · Lonsurf · MYCHOICE CDX · MYRISK · NERLYNX · NINLARO · Nerlynx · Neulasta · Nplate · ON-Q PUMP AND ACCESSORIES · OVA1 · PIQRAY · PRECISETUMOR · PreciseTumor · RYDAPT · Rubraca · SANDOSTATIN · SEPRAFILM · SOMATULINE DEPOT · STRATAFIX · SURGICEL Family of Absorbable Hemostats · Surgicel Powder · THINPREP 2000 PROCESSOR · TISSEEL · TIVDAK · UPTRAVI · VISICLEAR · VISTASEAL · VOTRIENT · VYXEOS · Vectibix · Venclexta · XARELTO · ZEJULA · ZYKADIA · myChoice CDx · myRisk
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
Gynecologic oncology physicians in nearby ZIP areas
12
County median income
$70,571
Nearest hospital to ZIP centroid (approximate)
UNIVERSITY HEALTH SYSTEM
0.0 mi
0.0 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. Santillan-Gomez is a mixed practice specialist, with above-average Medicare volume (top 5% in TX), with 19 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. Santillan-Gomez experienced with paclitaxel chemotherapy injection?
Based on Medicare claims data, Dr. Santillan-Gomez performed 10,999 paclitaxel chemotherapy injection 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. Santillan-Gomez receive payments from pharmaceutical companies?
Yes. Dr. Santillan-Gomez received a total of $160,235 from 43 companies across 328 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. Santillan-Gomez's costs compare to other gynecologic oncology physicians in San Antonio?
Dr. Santillan-Gomez's average Medicare payment per service is $8. 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. Santillan-Gomez) 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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