https://doctransparency.com/doctor/tx/keller/sanjayanth-chamakura-1659368728
Medicare Enrolled

Dr. Sanjayanth Chamakura, M.D.

Nuclear Cardiology Physician · Keller, TX
Practice pattern: Clinical Cardiology— Primarily office-based clinical cardiology
Low-engagement
1866 KELLER PKWY STE B, Keller, TX 76248
6823373810
In practice since 2005 (20 years)
NPI: 1659368728 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. Chamakura 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 →
Are you Dr. Chamakura? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Chamakura

Dr. Sanjayanth Chamakura is a nuclear cardiology physician in Keller, TX, with 20 years in practice. Based on federal Medicare data, Dr. Chamakura performed 4,420 Medicare services across 2,128 unique beneficiaries.

Between the years covered by Open Payments, Dr. Chamakura received a total of $11,797 from 44 pharmaceutical and/or device companies across 350 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in nuclear cardiology physician. 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. Chamakura 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.

✓ 20 years in practice▲ Top 33% volume in TX$ $11,797 industry payments

Medicare Practice Summary

Medicare Utilization ↗
4,420
Medicare services
Top 33% in TX for nuclear cardiology physician
2,128
Unique beneficiaries
$89
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~221 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.

ProcedureVolumeAvg. paidAvg. submitted
External counterpulsation, per treatment session1,507$81$900
Electrocardiogram (EKG), 12-lead442$11$43
Office visit, established patient (30-39 min)397$90$386
Regadenoson injection (Lexiscan) for heart stress test320$41$276
Hospital follow-up visit, moderate complexity277$61$211
Echocardiogram, transthoracic186$141$611
Office visit, established patient (20-29 min)119$59$298
Technetium tc-99m tetrofosmin, diagnostic, per study dose109$139$178
Hospital follow-up visit, high complexity108$93$304
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician106$48$215
Nuclear medicine studies of heart muscle at rest and with stress and spect103$336$1,383
Office visit, established patient, complex (40-54 min)103$129$539
New patient office visit (45-59 min)79$122$500
Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional72$19$100
New patient office visit, complex (60-74 min)70$166$639
Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional61$661$2,717
Initial hospital admission, high complexity56$123$587
Remote pacemaker monitoring, 90 days44$21$90
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes32$9$155
Ultrasonic guidance for blood vessel access29$11$121
Initial hospital admission, moderate complexity26$101$399
Test for exercise-induced lung stress24$26$125
Ultrasound of both sides of head and neck blood flow23$135$592
Injection for imaging of aorta above heart valve with review by radiologist21$28$332
Programming of dual lead pacemaker system20$61$250
Ultrasound of heart blood flow, valves and chambers, follow-up20$20$78
Ultrasound of heart with color-depicted blood flow, rate and valve function20$19$74
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report20$177$720
Cardiac catheterization14$185$3,277
Ultrasound study of arm or leg veins with compression and maneuvers12$132$582
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.
7.4% high complexity
13.2% medium
79.4% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$11,797
Total received (2018-2024)
Avg $1,685/year across 7 years
Top 28% in TX for nuclear cardiology physician
44
Companies
350
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
$11,705 (99.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$92 (0.8%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$969
2023
$1,372
2022
$1,953
2021
$823
2020
$1,411
2019
$4,090
2018
$1,178

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Medtronic Vascular, Inc.
$3,519
Medtronic, Inc.
$1,782
Abbott Laboratories
$1,490
Novartis Pharmaceuticals Corporation
$612
Cardiovascular Systems Inc.
$446
AstraZeneca Pharmaceuticals LP
$404
Amgen Inc.
$349
Edwards Lifesciences Corporation
$289
E.R. Squibb & Sons, L.L.C.
$245
SANOFI-AVENTIS U.S. LLC
$226
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$212
Merck Sharp & Dohme LLC
$203
Shockwave Medical, Inc
$167
ABIOMED
$161
Siemens Medical Solutions USA, Inc.
$160
Boston Scientific Corporation
$153
Baxter Healthcare
$148
Boehringer Ingelheim Pharmaceuticals, Inc.
$138
BIOTRONIK INC.
$135
PFIZER INC.
$123
Esperion Therapeutics, Inc.
$93
Janssen Pharmaceuticals, Inc
$90
Philips Electronics North America Corporation
$82
Chiesi USA, Inc.
$53
Bayer HealthCare Pharmaceuticals Inc.
$53
Astellas Pharma US Inc
$44
Bardy Diagnostics, Inc.
$35
Innovation Technologies Inc
$34
Itamar Medical Inc
$32
Bayer Healthcare Pharmaceuticals Inc.
$32
Actelion Pharmaceuticals US, Inc.
$27
Artivion, Inc.
$27
Gilead Sciences, Inc.
$26
ShockWave Medical, Inc
$25
Allergan Inc.
$24
GE HEALTHCARE
$23
ACIST MEDICAL SYSTEMS, INC.
$21
Biosense Webster, Inc.
$20
Acist Medical Systems, Inc.
$19
Kiniksa Pharmaceuticals, Ltd.
$18
Alnylam Pharmaceuticals Inc.
$16
iRhythm Technologies, Inc.
$16
Aziyo Biologics, Inc.
$14
Medicure Pharma Inc.
$11
Top 3 companies account for 57.6% of total payments
Associated products mentioned in payments ›
(5054) Geneva · (5091) Amb Mon & Diag Und · (7999) SRC Undivided · ABRE · Arctic Front · Artis one · Asahi Fielder coronary guide wire · Assurity Pacemaker · BIOMONITOR · BRILINTA · BYSTOLIC · CAMZYOS · CHANTIX · CONFIRM RX · CORECATH · COREVALVE EVOLUT R · COROFLOW · COSEAL · CVI Consumables · Carnation Ambulatory Monitor · CartoSound · Confirm Rx · CoreValve Evolut · Corlanor · Coronary Orbital Atherectomy System · DIAMONDBACK CORONARY · Diamondback Coronary · ECM Patch · ELCA · ELIQUIS · ELUVIA · ENSITE · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · Ellipse ICD · FARXIGA · Fortify Assura · General - Therapies · IRRISEPT · Impella · JARDIANCE · KENGREAL · Kerendia · LATITUDE Communicator Power Supply · LEQVIO · LEXISCAN · LifeVest · MULTAQ · Merlin Connectivity and Remote · NEXLETOL · ON-X AORTIC HEART VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER · ONPATTRO · ONYX FRONTIER · OPSUMIT · OPTIS · OSTENE · PRADAXA · PRALUENT · PRESSUREWIRE · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · Pouch · Quadra Assura CRT Defibrillator · RESOLUTE ONYX · RHYTHMIA · RXI SYSTEMS · ReDS · Repatha · Resolute · Reveal LINQ · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · TurboHawk · VERQUVO · Vascular Lithotripsy · Verquvo · WATCHMAN Access System · WatchPAT · XARELTO · XIENCE SIERRA · XIENCE SKYPOINT · Xience Alpine cornary stent system · ZIO Patch
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.

Equivalent to $267 per 100 Medicare services performed
Looking for a nuclear cardiology physician in Keller?
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Geographic Context

Nuclear Cardiology Physicians within 10 mi
7
Per 100K population
0.3
County median income
$81,905
Nearest hospital
TEXAS HEALTH HARRIS METHODIST HOSPITAL ALLIANCE
2.9 mi

Data Sources

Provider Registry NPPESWeekly updates
Medicare Enrollment PECOSMonthly updates
Practice Data Medicare Util.Annual (CY lag)
Industry Payments Open PaymentsCY 2024
Disciplinary History— Not publicN/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. Chamakura is a clinical cardiology specialist, with moderate Medicare volume, and low-engagement industry engagement, with 20 years of practice experience.

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. Chamakura experienced with external counterpulsation, per treatment session?
Based on Medicare claims data, Dr. Chamakura performed 1,507 external counterpulsation, per treatment session 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. Chamakura receive payments from pharmaceutical companies?
Yes. Dr. Chamakura received a total of $11,797 from 44 companies across 350 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. Chamakura's costs compare to other nuclear cardiology physicians in Keller?
Dr. Chamakura'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. Chamakura) 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 →