Medicare Enrolled
Dr. Yolanda Marcos, MD
Internal Medicine · San Antonio, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Marcos 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. Marcos
Dr. Yolanda Marcos is an internal medicine specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Marcos performed 9,367 Medicare services across 5,549 unique beneficiaries.
Between the years covered by Open Payments, Dr. Marcos received a total of $12,664 from 73 pharmaceutical and/or device companies across 744 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. 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. Marcos 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.
✓ 19 years in practice
▲ Top 3% volume in TX
$12,664 industry payments
Medicare Practice Summary
Medicare Utilization ↗9,367
Medicare services
Top 3% in TX for internal medicine
5,549
Unique beneficiaries
$59
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~493 Medicare services per year of practice
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 |
|---|---|---|---|
| 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. |
2,374 | $86 | $213 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
781 | $46 | $81 |
| Allergy skin test A diagnostic test performed to identify specific allergies by applying or introducing allergenic extracts to the body. The procedure measures the patient's immune response to various potential allergens. |
751 | $3 | $11 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
584 | $124 | $200 |
| Annual alcohol misuse screening, 5 to 15 minutes | 577 | $17 | $35 |
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
536 | $36 | $81 |
| Annual depression screening | 459 | $17 | $35 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
366 | $10 | $33 |
| Additional chronic care management time, 60 minutes This service covers an additional 60 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions, billed per calendar month. |
359 | $53 | $86 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
321 | $30 | $50 |
| 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. |
298 | $61 | $145 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
258 | $72 | $80 |
| COVID-19 vaccine administration Administration of a single dose of the coronavirus vaccine. |
183 | $39 | $60 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
168 | $30 | $35 |
| Pneumococcal conjugate vaccine (PCV20) An intramuscular injection of the 20-valent pneumococcal conjugate vaccine. It is used to protect against diseases caused by Streptococcus pneumoniae bacteria. |
154 | $283 | $300 |
| Complex chronic care management, first 60 minutes This service involves clinical staff time directed by a healthcare professional to manage two or more chronic conditions over a calendar month. It covers the first 60 minutes of this coordinated care effort. |
148 | $98 | $178 |
| COVID-19 vaccine (Pfizer bivalent) Administration of a 30 mcg dose of the SARS-CoV-2 vaccine via intramuscular injection. |
114 | $127 | $193 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
86 | $4 | $4 |
| SARS-CoV-2 vaccine, 30 mcg/0.3 mL Administration of the SARS-CoV-2 (COVID-19) vaccine containing 30 micrograms of antigen in a 0.3 milliliter dose. |
73 | $39 | $55 |
| COVID-19 vaccine (Moderna bivalent) An intramuscular injection of the SARS-CoV-2 vaccine containing 50 micrograms in a 0.5 mL dose. |
67 | $108 | $110 |
| 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. |
65 | $10 | $50 |
| 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. |
64 | $104 | $322 |
| Vaccine administration The process of giving a vaccine to a patient. This code covers the administration service only and does not include the cost of the vaccine itself. |
63 | $14 | $32 |
| Influenza virus detection test A laboratory test that uses an immunoassay technique to detect the presence of the influenza virus through direct visual observation. |
54 | $16 | $45 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
50 | $22 | $43 |
| Adm sarscv2 bvl 50mcg/.5ml a | 46 | $39 | $55 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
45 | $3 | $20 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
33 | $158 | $200 |
| Strep A rapid test A rapid test to detect Group A Streptococcus bacteria using an immunoassay method with direct visual observation. |
28 | $16 | $45 |
| Expiratory airflow and volume test A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume. |
27 | $17 | $45 |
| Routine 12-lead ECG screening A standard 12-lead electrocardiogram performed as part of an initial preventive physical examination. The service includes both the performance of the test and the physician's interpretation and report. |
25 | $7 | $75 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
23 | $146 | $362 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
23 | $158 | $336 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
22 | $32 | $85 |
| COVID-19 amplified DNA/RNA probe detection A laboratory test that uses amplified DNA or RNA probes to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) antigen. |
22 | $50 | $65 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
22 | $1 | $20 |
| Nitric oxide gas level test A test that measures the level of nitric oxide gas in the body. |
21 | $11 | $38 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
21 | $208 | $478 |
| Assessment of emotional or behavioral problems An evaluation to identify and understand emotional or behavioral issues. This process involves reviewing symptoms and behaviors to determine the nature of the concerns. |
16 | $3 | $20 |
| 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. |
16 | $135 | $285 |
| Injection, methylprednisolone acetate, 40 mg | 13 | $6 | $16 |
| Recombinant quadrivalent influenza vaccine A flu shot that protects against four strains of influenza virus. It is produced using recombinant DNA technology rather than growing the virus in eggs. |
11 | $69 | $85 |
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. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$12,664
Total received (2018-2024)
Avg $1,809/year across 7 years
Top 7% in TX for internal medicine
73
Companies
744
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$12,500 (98.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$164 (1.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,499
2023
$1,550
2022
$1,931
2021
$2,117
2020
$1,459
2019
$2,031
2018
$2,077
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$1,328
AstraZeneca Pharmaceuticals LP
$1,124
Amgen Inc.
$1,091
GlaxoSmithKline, LLC.
$768
Lilly USA, LLC
$751
ABBVIE INC.
$547
Boehringer Ingelheim Pharmaceuticals, Inc.
$490
Merck Sharp & Dohme Corporation
$450
PFIZER INC.
$424
Abbott Laboratories
$402
Teva Pharmaceuticals USA, Inc.
$392
Takeda Pharmaceuticals U.S.A., Inc.
$313
Astellas Pharma US Inc
$312
SANOFI-AVENTIS U.S. LLC
$269
Allergan Inc.
$225
Amarin Pharma Inc.
$222
Esperion Therapeutics, Inc.
$221
AbbVie Inc.
$194
Bayer Healthcare Pharmaceuticals Inc.
$182
Ferring Pharmaceuticals Inc.
$179
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$162
SANOFI PASTEUR INC.
$161
Merz North America, Inc.
$150
Janssen Pharmaceuticals, Inc
$143
Allergan, Inc.
$129
Galderma Laboratories, L.P.
$119
Merck Sharp & Dohme LLC
$111
AbbVie, Inc.
$111
Shire North American Group Inc
$100
Exact Sciences Corporation
$94
Acella Pharmaceuticals, LLC
$89
Biohaven Pharmaceuticals, Inc.
$85
Sunovion Pharmaceuticals Inc.
$81
Biohaven Pharmaceutical Holding Company Ltd.
$78
Avanir Pharmaceuticals, Inc.
$75
ARBOR PHARMACEUTICALS, INC.
$68
Regeneron Healthcare Solutions, Inc.
$68
BIOTRONIK INC.
$63
Horizon Therapeutics plc
$61
Althera Pharmaceuticals LLC
$49
Paratek Pharmaceuticals, Inc.
$49
Supernus Pharmaceuticals, Inc.
$48
Ardelyx, Inc.
$45
Sumitomo Pharma America, Inc.
$41
Currax Pharmaceuticals LLC
$35
Sanofi Pasteur Inc.
$34
VistaPharm, Inc.
$32
Antares Pharma, Inc.
$31
Corium, LLC
$31
Kowa Pharmaceuticals America, Inc.
$30
Novartis Pharmaceuticals Corporation
$29
Eisai Inc.
$28
Organogenesis Inc.
$25
Ultragenyx Pharmaceutical Inc.
$24
Lundbeck LLC
$21
Ironshore Pharmaceuticals Inc.
$20
Bayer HealthCare Pharmaceuticals Inc.
$20
Corcept Therapeutics
$19
Nevro Corp.
$19
Hologic, LLC
$18
SI-BONE, INC.
$18
LINUS HEALTH, INC.
$18
ALK-Abello, Inc
$17
Shield Therapeutics Inc
$17
SHIELD THERAPEUTICS INC
$16
GE HEALTHCARE
$14
Circassia Pharmaceuticals Inc
$13
IDORSIA PHARMACEUTICALS US INC
$13
Synergy Pharmaceuticals Inc
$13
Scilex Pharmaceuticals Inc.
$12
Acclarent, Inc
$12
Horizon Pharma plc
$11
Janssen Biotech, Inc.
$11
Top 3 companies account for 28.0% of total payments
Associated products mentioned in payments ›
ACCLARENT ENT ULTIRRA/NAVWIRE 3-GUIDE Bundle · ACCRUFER · ADACEL · AFINION 2 · AIRSUPRA · AJOVY · ANORO · AREXVY · ASMANEX · AUSTEDO · Aimovig · Aptima Combo 2 · Austedo XR · Axium INS DRG IPG · Azstarys · BASAGLAR · BELSOMRA · BEVESPI AEROSPHERE · BEXSERO · BREO · BREZTRI · BREZTRI AEROSPHERE · BYSTOLIC · Belviq · CONTRAVE · CORE COGNITIVE EVALUATION · Cologuard Collection Kit · DUEXIS · Dayvigo · ELIQUIS · EMGALITY · EON C · EUFLEXXA · EVENITY · Edarbi · Edora 8 DR-T · FARXIGA · FASENRA · FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE · FLUZONE HIGH-DOSE · FLUZONE QUADRIVALENT · FREESTYLE LIBRE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · GARDASIL · GARDASIL 9 · GATTEX · GEMTESA · Grastek · Horizant · IBSRELA · INVOKANA · JANUVIA · JARDIANCE · JORNAY PM · Kerendia · Korlym · LEQVIO · LINZESS · Livalo · MOUNJARO · MOVANTIK · MYDAYIS · MYRBETRIQ · Myrbetriq · NEXLETOL · NEXLIZET · NIOX VERO · NP Thyroid 60 · NURTEC ODT · NUZYRA · Neuromodulation Dspsbls and Accs · Nuedexta · OFEV · ONZETRA XSAIL · Omnia · Otezla · Ozempic · PENNSAID · PNEUMOVAX 23 · PRALUENT · PRALUENT ALIROCUMAB INJECTION · PREMARIN · PREVNAR - 13 · PREVNAR 13 · PREVNAR 20 · Proclaim Family of SCS IPGs · Prolia · Puraply · QELBREE · QULIPTA · QUVIVIQ · RAYOS · REXULTI · RYBELSUS · Repatha · Roszet · Rybelsus · SHINGRIX · SIMPONI · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · SYMBICORT · Saxenda · Synthroid · TLANDO · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · Thyquidity · Tresiba · Trintellix · Trulance · UBRELVY · VERQUVO · VIIBRYD · VRAYLAR · VYVANSE · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · XYOSTED · Xultophy 100/3.6 · ZEPBOUND · ZOSTAVAX · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 7% for internal medicine in TX.
Equivalent to $135 per 100 Medicare services performed
Geographic Context
Internal medicine physicians within 10 mi
1,149
Per 100K population
56.4
County median income
$70,571
Nearest hospital
SOUTH TEXAS SPINE AND SURGICAL HOSPITAL
0.0 mi
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. Marcos is a clinical cardiology specialist, with above-average Medicare volume (top 3% in TX), with low-engagement industry engagement in the top 7% of TX peers, with 19 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
Is Dr. Marcos experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Marcos performed 2,374 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Marcos receive payments from pharmaceutical companies?
Yes. Dr. Marcos received a total of $12,664 from 73 companies across 744 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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. Marcos's costs compare to other internal medicine physicians in San Antonio?
Dr. Marcos's average Medicare payment per service is $59. 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. Marcos) 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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