Medicare Enrolled
Dr. Martin Zapata, D.O
Internal Medicine · Norwalk, CA
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. Zapata 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. Zapata
Dr. Martin Zapata is an internal medicine specialist in Norwalk, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Zapata performed 3,158 Medicare services across 1,328 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zapata received a total of $5,310 from 35 pharmaceutical and/or device companies across 222 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. Zapata 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 in practice
▲ Top 10% volume in CA
$5,310 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,158
Medicare services
Top 10% in CA for internal medicine
1,328
Unique beneficiaries
$65
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~166 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 |
|---|---|---|---|
| Nursing facility visit, low complexity A daily follow-up visit for an existing patient in a nursing facility involving straightforward medical decision making. The visit requires at least 15 minutes of time if time is used to determine the level of care. |
499 | $57 | $195 |
| Nursing facility visit, established patient, straightforward A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves straightforward medical decision making and lasts at least 10 minutes. |
494 | $32 | $150 |
| 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. |
455 | $66 | $150 |
| 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. |
396 | $51 | $75 |
| 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. |
218 | $105 | $347 |
| 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. |
164 | $144 | $450 |
| Initial nursing facility care, moderate complexity Initial care provided to a patient in a nursing facility with moderate medical decision making, taking at least 35 minutes. |
152 | $112 | $264 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
139 | $8 | $25 |
| Home visit, established patient, straightforward decision making A home visit for an established patient involving straightforward medical decision making. The visit lasts at least 15 minutes when time is used to determine the level of service. |
138 | $25 | $100 |
| Hospital discharge day management, 30 minutes or less This service covers the final day of hospital care when the patient is being discharged. It includes coordination of care and instructions for the patient within a time frame of 30 minutes or less. |
136 | $68 | $250 |
| 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. |
108 | $69 | $174 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
39 | $40 | $150 |
| Initial nursing facility care, high complexity An initial visit by a healthcare provider to a patient in a nursing facility involving a high level of medical decision making, lasting at least 45 minutes. |
37 | $154 | $373 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
36 | $75 | $150 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
27 | $140 | $200 |
| Home health plan of care re-certification A physician reviews the patient's status and contacts the home health agency to re-certify the plan of care without the patient being present. |
24 | $31 | $130 |
| Influenza vaccine, quadrivalent, 0.5 ml dosage | 22 | $20 | $85 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
22 | $33 | $35 |
| 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 | $237 | $450 |
| 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. |
20 | $178 | $200 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
11 | $109 | $450 |
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 ↗$5,310
Total received (2018-2024)
Avg $759/year across 7 years
Top 15% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
35
Companies
222
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
$5,310 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$864
2023
$967
2022
$1,159
2021
$498
2020
$466
2019
$490
2018
$865
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$201
Boehringer Ingelheim Pharmaceuticals, Inc.
$79
Phathom Pharmaceuticals, Inc.
$77
Merck Sharp & Dohme LLC
$69
ABBVIE INC.
$59
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$47
Lilly USA, LLC
$46
Otsuka America Pharmaceutical, Inc.
$44
Lundbeck LLC
$43
SCILEX PHARMACEUTICALS INC.
$42
Averitas Pharma Inc.
$35
Amgen Inc.
$33
Janssen Pharmaceuticals, Inc
$28
Gilead Sciences, Inc.
$22
Bayer Healthcare Pharmaceuticals Inc.
$21
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$17
Top 3 companies account for 41.3% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$1,311
Novo Nordisk Inc
$817
BIOTRONIK INC.
$379
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$352
Amarin Pharma Inc.
$287
Bayer HealthCare Pharmaceuticals Inc.
$229
Horizon Therapeutics plc
$193
Bayer Healthcare Pharmaceuticals Inc.
$162
Lilly USA, LLC
$153
Exact Sciences Corporation
$140
Sunovion Pharmaceuticals Inc.
$135
Merck Sharp & Dohme LLC
$112
Boehringer Ingelheim Pharmaceuticals, Inc.
$102
Amgen Inc.
$89
E.R. Squibb & Sons, L.L.C.
$86
Allergan Inc.
$86
Phathom Pharmaceuticals, Inc.
$77
Otsuka America Pharmaceutical, Inc.
$75
SCILEX PHARMACEUTICALS INC.
$65
SANOFI-AVENTIS U.S. LLC
$63
ABBVIE INC.
$59
Lundbeck LLC
$43
DEXCOM, INC.
$40
Smith & Nephew, Inc.
$37
PFIZER INC.
$36
Averitas Pharma Inc.
$35
INSYS Therapeutics Inc
$22
Gilead Sciences, Inc.
$22
AbbVie Inc.
$20
Medtronic MiniMed, Inc.
$19
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$17
Takeda Pharmaceuticals U.S.A., Inc.
$17
Purdue Pharma L.P.
$14
AstraZeneca Pharmaceuticals LP
$13
Sumitomo Pharma America, Inc.
$5
Top 3 companies account for 47.2% of all-time payments
Associated products mentioned in payments ›
APTIOM · BOTOX · CAPLYTA · CHANTIX · Cologuard Collection Kit · DEXCOM G6 TRANSMITTER · ELIQUIS · EMGALITY · FARXIGA · GEMTESA · INVOKANA · JARDIANCE · JYNARQUE · KRYSTEXXA · Kerendia · LONHALA MAGNAIR · LYRICA · MAVYRET · MOUNJARO · Otezla · Ozempic · QUTENZA · REXULTI · RYBELSUS · Rybelsus · SYMPROIC · SYNDROS · Santyl · Saxenda · TOUJEO · TRINTELLIX · Tresiba · VERQUVO · VIIBRYD · VOQUEZNA · VRAYLAR · Vascepa · Victoza · Wegovy · XARELTO · XIFAXAN · ZEPBOUND · ZTLido · iPro2
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.
Geographic Context
Internal medicine physicians within 10 mi
5,560
Per 100K population
56.5
County median income
$87,760
Nearest hospital
COAST PLAZA 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Zapata is a clinical cardiology specialist, with above-average Medicare volume (top 10% in CA), with low-engagement industry engagement in the top 15% of CA peers, 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. Zapata experienced with nursing facility visit, low complexity?
Based on Medicare claims data, Dr. Zapata performed 499 nursing facility visit, low 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. Zapata receive payments from pharmaceutical companies?
Yes. Dr. Zapata received a total of $5,310 from 35 companies across 222 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. Zapata's costs compare to other internal medicine physicians in Norwalk?
Dr. Zapata's average Medicare payment per service is $65. 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. Zapata) 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. 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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