Medicare Enrolled
Dr. Keshav Nayak, M.D.
Cardiovascular Disease · San Diego, 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. Nayak 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. Nayak
Dr. Keshav Nayak is a cardiovascular disease specialist in San Diego, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Nayak performed 3,017 Medicare services across 2,007 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nayak received a total of $19,283 from 45 pharmaceutical and/or device companies across 463 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. 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. Nayak 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 36% volume in CA
$19,283 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,017
Medicare services
Top 36% in CA for cardiovascular disease
2,007
Unique beneficiaries
$89
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~159 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. |
679 | $102 | $216 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
565 | $7 | $22 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
314 | $98 | $252 |
| 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. |
240 | $12 | $40 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
116 | $42 | $160 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
114 | $160 | $455 |
| 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. |
114 | $143 | $457 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
94 | $23 | $210 |
| 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. |
85 | $133 | $330 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
70 | $10 | $76 |
| 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. |
51 | $65 | $184 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
50 | $162 | $543 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
47 | $333 | $925 |
| 30-day continuous ECG with patient-triggered event transmission and review This procedure involves continuous electrocardiogram monitoring for up to 30 days, including the transmission of patient-triggered events. A healthcare professional reviews the data and provides a report. |
47 | $780 | $1,506 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
46 | $21 | $52 |
| Exercise or drug-induced heart stress test with ECG A test that monitors the heart's electrical activity while the patient exercises or receives medication to increase heart rate. |
45 | $30 | $111 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
44 | $20 | $56 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
35 | $11 | $30 |
| Cardiac catheterization | 32 | $190 | $659 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
27 | $16 | $51 |
| Coronary angiography A procedure to insert a tube into a coronary artery to capture diagnostic images of the heart's blood vessels. |
24 | $169 | $607 |
| 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. |
22 | $107 | $351 |
| Transcatheter aortic valve replacement via femoral artery A minimally invasive procedure to replace a diseased aortic heart valve using a catheter inserted through the skin and femoral artery. |
21 | $587 | $2,487 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
18 | $25 | $67 |
| Follow-up ultrasound of heart blood flow, valves and chambers An ultrasound exam that follows up on the heart's blood flow, valves, and chambers. It uses sound waves to create images of the heart's structure and function. |
16 | $6 | $16 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
16 | $173 | $559 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
13 | $424 | $1,322 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
13 | $30 | $59 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
13 | $161 | $561 |
| Ultrasound of heart blood vessel or graft An ultrasound exam to evaluate blood flow in a heart blood vessel or graft, including a radiologist's review of the initial vessel. |
12 | $74 | $224 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
12 | $18 | $41 |
| Repair of left upper heart chamber with implant A surgical procedure to repair the left upper chamber of the heart using an implanted device, with review by a radiologist. |
11 | $406 | $1,645 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
11 | $12 | $35 |
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.
6.5% high complexity
17.8% medium
75.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$19,283
Total received (2018-2024)
Avg $2,755/year across 7 years
Top 18% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
463
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
$17,655 (91.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,555 (8.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$57 (0.3%)
Scientific / Research
Research funding and grants
$16 (0.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,174
2023
$2,705
2022
$3,763
2021
$4,426
2020
$664
2019
$2,530
2018
$2,022
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$1,515
Edwards Lifesciences Corporation
$762
Medtronic, Inc.
$232
ABIOMED
$115
HEARTFLOW, INC.
$93
Boston Scientific Corporation
$91
CARDIVA MEDICAL, INC.
$85
Kestra Medical Technology Services, Inc.
$65
Philips North America LLC
$56
Inari Medical, Inc.
$41
Novartis Pharmaceuticals Corporation
$36
Bayer Healthcare Pharmaceuticals Inc.
$32
Acist Medical Systems, Inc.
$29
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$21
Top 3 companies account for 79.0% of 2024 payments
All-time payments by company (2018-2024) ›
Edwards Lifesciences Corporation
$3,917
Abbott Laboratories
$3,334
Medtronic, Inc.
$2,507
Philips Electronics North America Corporation
$1,908
Corindus Inc.
$1,455
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$851
Inari Medical, Inc.
$803
Boston Scientific Corporation
$723
ABIOMED
$715
Medtronic Vascular, Inc.
$424
Shockwave Medical, Inc
$294
CARDIVA MEDICAL, INC.
$239
Braemar Manufacturing, LLC
$220
BOSTON SCIENTIFIC CORPORATION
$181
EKOS Corporation
$138
Teva Pharmaceuticals USA, Inc.
$125
ZOLL Circulation Inc
$110
Novartis Pharmaceuticals Corporation
$101
AstraZeneca Pharmaceuticals LP
$100
Actelion Pharmaceuticals US, Inc.
$97
Terumo Medical Corporation
$96
HEARTFLOW, INC.
$93
AngioDynamics, Inc.
$88
BIOTRONIK INC.
$87
Kestra Medical Technology Services, Inc.
$65
PFIZER INC.
$59
Philips North America LLC
$56
Amgen Inc.
$54
Ethicon US, LLC
$51
CVRx, Inc.
$38
W. L. Gore & Associates, Inc.
$38
Cardiovascular Systems Inc.
$32
Bayer Healthcare Pharmaceuticals Inc.
$32
Biocompatibles, Inc.
$31
SCPHARMACEUTICALS INC.
$30
Acist Medical Systems, Inc.
$29
Gilead Sciences, Inc.
$25
ShockWave Medical, Inc
$24
Novo Nordisk Inc
$21
Janssen Pharmaceuticals, Inc
$19
Teleflex LLC
$16
Penumbra, Inc.
$16
Cook Medical LLC
$16
Tactile Systems Technology Inc
$14
Itamar Medical Inc
$9
Top 3 companies account for 50.6% of all-time payments
Associated products mentioned in payments ›
(5027) Intact Vascular Und · (5044) MCOT · (5055) Healthcare Und · (6399) Angio iFR · (6496) FM Other · (6571) Eagle Eye · (6585) Omniwire · (8333) IGT D Coronary · (9520) IGT Devices Undivided · (CK4) MCOT · AJOVY · ALPHAVAC · AMPLATZER · AMPLATZER Occluders · AMPLATZER TALISMAN · ANDEXXA · AZUR · AZURE XT DR MRI SURESCAN · Assure WCD · Astron; Pulsar; AstronPulsar · Azure · BRILINTA · Barostim Neo System · CARDIOFORM Septal Occluder · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · COREVALVE EVOLUT R · CT THROMBECTOMY SYSTEM KIT · CVI Consumables · Cardiac Monitoring Suite · CardioMEMS HF System · Cobalt · CorPath GRX · CoreValve Evolut · DRAGONFLY OPSTAR · Diamondback Coronary · Diamondback Peripheral · EKOSONIC · ELIQUIS · ENTRESTO · EVERA MRI XT DR SURESCAN · Edwards SAPIEN 3 Transcatheter Heart Valve · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · EkoSonic · Evera · FFRct · FLEXITOUCH · FLOWTRIEVER CATHETER · FUROSCIX · GENERAL THERAPIES · GENERAL - STENTS · GENERAL - STRUCTURAL HEART · GENERAL - THERAPIES · General - Catheters · HeartMate 3 Left Ventricular Dev · IGT D Coronary · Impella · Indigo System · Kerendia · LEQVIO · LINQ II · LUX-Dx Insertable Cardiac Monitor · LifeVest · MANTA · MICRA · MITRACLIP · Mitra Clip system · MitraClip System · OPSUMIT · OPTOWIRE · PASCAL · RESOLUTE ONYX · Repatha · Resolute · Rybelsus · S · SAPIEN 3 Ultra RESILIA · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · SURGIFLO Hemostatic Matrix · Telescope · Temperature Management System · TherOx DS2 Console · UPTRAVI · VARITHENA · VISTASEAL · VYNDAQEL · VersaCross Access Solution · ViewFlex Xtra ICE Catheter · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · WatchPAT · XARELTO · XIENCE SKYPOINT
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 (92%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
235
Per 100K population
7.2
County median income
$102,285
Nearest hospital
NMC San Diego
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. Nayak is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 18% 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. Nayak experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Nayak performed 679 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. Nayak receive payments from pharmaceutical companies?
Yes. Dr. Nayak received a total of $19,283 from 45 companies across 463 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. Nayak's costs compare to other cardiologists in San Diego?
Dr. Nayak's average Medicare payment per service is $89. 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. Nayak) 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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