Medicare Enrolled

Dr. Maria Chapa, MD

Internal Medicine · San Antonio, TX
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
8004 WEST AVE STE 1, San Antonio, TX 78213
2103400801
In practice since 2006 (19 years)
NPI: 1457443012 verify on NPPES ↗
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. Chapa 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. Chapa

Dr. Maria Chapa is an internal medicine specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Chapa performed 876 Medicare services across 397 unique beneficiaries.

Between the years covered by Open Payments, Dr. Chapa received a total of $6,971 from 41 pharmaceutical and/or device companies across 305 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. Chapa 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 40% volume in TX $6,971 industry payments

Medicare Practice Summary

Medicare Utilization ↗
876
Medicare services
Top 40% in TX for internal medicine
397
Unique beneficiaries
$91
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~46 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
Hospital follow-up visit, high complexity 384 $92 $126
Initial hospital admission, high complexity 121 $134 $247
Hospital follow-up visit, moderate complexity 85 $62 $88
Hospital discharge management, 30+ min 78 $88 $130
Office visit, established patient (20-29 min) 77 $60 $111
Annual wellness visit, follow-up 68 $126 $150
Chronic care management, first 20 min/month 23 $35 $49
Hemoglobin A1c test (diabetes monitoring) 20 $10 $20
Office visit, established patient (30-39 min) 20 $92 $158
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 ↗
$6,971
Total received (2018-2024)
Avg $996/year across 7 years
Top 12% in TX for internal medicine
41
Companies
305
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
$6,971 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$937
2023
$1,479
2022
$1,717
2021
$1,395
2020
$479
2019
$679
2018
$286

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$1,164
AstraZeneca Pharmaceuticals LP
$922
Lilly USA, LLC
$603
AbbVie Inc.
$567
SANOFI-AVENTIS U.S. LLC
$431
ABBVIE INC.
$430
Amarin Pharma Inc.
$247
PFIZER INC.
$213
Biohaven Pharmaceuticals, Inc.
$208
Esperion Therapeutics, Inc.
$197
Teva Pharmaceuticals USA, Inc.
$180
Neurelis, Inc.
$152
Takeda Pharmaceuticals U.S.A., Inc.
$142
Bayer HealthCare Pharmaceuticals Inc.
$127
NESTLE HEALTHCARE NUTRITION INC.
$124
Otsuka America Pharmaceutical, Inc.
$122
Biohaven Pharmaceutical Holding Company Ltd.
$116
Lundbeck LLC
$111
Novartis Pharmaceuticals Corporation
$72
Genentech USA, Inc.
$66
Boston Scientific Corporation
$65
Medtronic, Inc.
$61
Abbott Laboratories
$60
Xeris Pharmaceuticals, Inc.
$60
Exact Sciences Corporation
$57
Vertical Pharmaceuticals, LLC
$54
Shire North American Group Inc
$54
Bayer Healthcare Pharmaceuticals Inc.
$53
Boehringer Ingelheim Pharmaceuticals, Inc.
$53
Merck Sharp & Dohme Corporation
$37
MannKind Corporation
$35
IDORSIA PHARMACEUTICALS US INC
$30
Actelion Pharmaceuticals US, Inc.
$27
AbbVie, Inc.
$25
Nevro Corp.
$23
Kyowa Kirin, Inc.
$18
Melinta Therapeutics, Inc.
$18
Mannkind Corporation
$16
Orexigen Therapeutics, Inc.
$13
GlaxoSmithKline, LLC.
$12
Currax Pharmaceuticals LLC
$11
Top 3 companies account for 38.6% of total payments
Associated products mentioned in payments ›
ABILIFY MAINTENA · AFREZZA · AIRSUPRA · AJOVY · AMS 700 · Amitiza · BREZTRI · Baxdela · CHANTIX · CONTRAVE · Cologuard Collection Kit · Crysvita · DISEASE STATE · ELIQUIS · EMGALITY · ENTRESTO · FARXIGA · FREESTYLE LIBRE 2 · FreeStyle Libre 2 · GATTEX · GENERAL PAIN MANAGEMENT · GVOKE PFS · INTELLIS · INTELLIS ADAPTIVESTIM · JANUVIA · JARDIANCE · KEVEYIS · Kerendia · LORZONE · METHYLPHENIDATE 72 · MOUNJARO · MOVANTIK · MYDAYIS · NEXLETOL · NEXLIZET · NURTEC ODT · OPSUMIT · Ozempic · PAXLOVID · PREMARIN · PREVNAR 20 · PROCLAIM · QULIPTA · QUVIVIQ · REXULTI · RYBELSUS · Rybelsus · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · Senza · TRINTELLIX · TRULICITY · Tresiba · UBRELVY · VALTOCO · VRAYLAR · Vascepa · Wegovy · Xofluza · ZENPEP
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Equivalent to $796 per 100 Medicare services performed
Looking for an internal medicine specialist in San Antonio?
Compare internal medicine physicians in the San Antonio area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Internal medicine physicians within 10 mi
1,137
Per 100K population
55.8
County median income
$70,571
Nearest hospital
UNIVERSITY HEALTH SYSTEM
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. Chapa is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 12% 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. Chapa experienced with hospital follow-up visit, high complexity?
Based on Medicare claims data, Dr. Chapa performed 384 hospital follow-up visit, high complexity 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. Chapa receive payments from pharmaceutical companies?
Yes. Dr. Chapa received a total of $6,971 from 41 companies across 305 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. Chapa's costs compare to other internal medicine physicians in San Antonio?
Dr. Chapa's average Medicare payment per service is $91. 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. Chapa) 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 →
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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →