Medicare Enrolled
Dr. Ramesh Hariharan, MD, FHRS
Internal Medicine · Houston, TX
Practice pattern: Remote & Electrophysiology
— Practice combining remote and electrophysiology services
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. Hariharan 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. Hariharan
Dr. Ramesh Hariharan is an internal medicine specialist in Houston, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Hariharan performed 12,209 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Hariharan received a total of $201,040 from 38 pharmaceutical and/or device companies across 1010 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Hariharan 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.
✓ 20 years of NPI registration
▲ Top 3% volume in TX
$201,040 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗12,209
Medicare services
Top 3% in TX for internal medicine
Not available
Unique patients (not deduplicated)
$30
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| Remote monitoring of implantable heart device, up to 30 days Remote evaluation of an implanted heart or blood vessel monitoring system over a period of up to 30 days. |
2,920 | $18 | $120 |
| Remote monitoring of implantable heart rhythm device Evaluation of data transmitted remotely from an implantable cardiovascular monitor, such as a loop recorder or subcutaneous cardiac rhythm monitor, over a period up to 30 days. |
2,691 | $25 | $93 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
2,145 | $15 | $127 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
1,842 | $20 | $129 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
1,054 | $25 | $202 |
| Remote cardiac rhythm monitor evaluation, up to 30 days Review and analysis of data from a remote cardiac rhythm monitoring system over a period of up to 30 days. |
675 | $18 | $125 |
| 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. |
218 | $10 | $90 |
| 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. |
135 | $91 | $311 |
| 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. |
67 | $67 | $221 |
| Atrial fibrillation ablation with pulmonary vein isolation A procedure to treat atrial fibrillation by mapping the heart's electrical activity and destroying tissue causing irregular contractions. This is done by isolating the pulmonary veins using catheter-based destruction. |
46 | $762 | $13,013 |
| Catheter ablation for abnormal heart rhythm A procedure where catheters are inserted to destroy tissue causing irregular heartbeats. |
41 | $244 | $1,753 |
| 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. |
38 | $128 | $379 |
| Heart catheterization to identify abnormal heart rhythm A tube is inserted into the heart chambers to record electrical activity and locate the source of an irregular heartbeat. |
35 | $218 | $1,360 |
| Heart chamber tissue destruction via catheter A procedure that destroys tissue in the upper heart chamber using a tube to treat abnormal heart rhythm. |
31 | $250 | $1,402 |
| New patient office visit, complex (60-74 min) | 28 | $173 | $494 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
25 | $45 | $132 |
| Pacemaker insertion with heart chamber electrodes A surgical procedure to implant a pacemaker device and place electrodes into the upper and lower chambers of the heart to regulate heart rhythm. |
24 | $389 | $3,460 |
| 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. |
23 | $10 | $158 |
| Implantable defibrillator system check A check of the implanted defibrillator device to ensure it is functioning correctly. This evaluation covers single, dual, or multiple lead systems. |
22 | $48 | $202 |
| Insertion of left lower heart electrode for pacemaker or defibrillator A procedure to place an electrode in the lower part of the left side of the heart. This electrode is used to connect a pacemaker or defibrillator to help regulate the heart's rhythm. |
18 | $381 | $2,114 |
| Heart rhythm stimulator programming after drug infusion Adjustment of a heart rhythm stimulation device following a drug infusion. This procedure involves reprogramming the device settings to ensure proper function after the medication has been administered. |
18 | $63 | $623 |
| Insertion of implantable defibrillator system A surgical procedure to place an implantable cardioverter-defibrillator (ICD) device into the body. The device is connected to the heart to monitor heart rhythm and deliver shocks if dangerous arrhythmias occur. |
15 | $740 | $6,258 |
| Removal of dual electrodes from right heart This procedure involves the extraction of dual electrodes located in the right side of the heart. |
14 | $470 | $3,020 |
| 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. |
14 | $610 | $4,184 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
14 | $83 | $290 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
12 | $90 | $240 |
| Removal of permanent pacemaker pulse generator This procedure involves the surgical removal of the pulse generator component of a permanent pacemaker. The pulse generator is the device that sends electrical impulses to regulate the heart's rhythm. |
11 | $96 | $1,350 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
11 | $87 | $641 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
11 | $59 | $200 |
| Ultrasound of heart blood vessels with radiologist review An ultrasound exam that evaluates blood vessels within the heart, including a review of the results by a radiologist. |
11 | $60 | $700 |
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. These counts do not measure clinical quality or years of experience.
43.7% high complexity
0.1% medium
56.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$201,040
Total received (2018-2024)
Avg $28,720/year across 7 years
Top 1% in TX for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
38
Companies
1,010
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$6,346
2023
$9,564
2022
$5,790
2021
$43,399
2020
$39,608
2019
$47,509
2018
$48,824
Payments by company (2024)
Abbott Laboratories
$3,233
Biosense Webster, Inc.
$1,261
Boston Scientific Corporation
$858
Impulse Dynamics (USA) Inc.
$485
Medtronic, Inc.
$276
E.R. Squibb & Sons, L.L.C.
$68
Cook Medical LLC
$68
Baxter Healthcare
$37
Alnylam Pharmaceuticals Inc.
$23
iRhythm Technologies, Inc.
$17
Merck Sharp & Dohme LLC
$16
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$4
Top 3 companies account for 84.3% of 2024 payments
All-time payments by company (2018-2024) ›
Preventice Services, LLC
$138,000
Abbott Laboratories
$33,254
ATRICURE, INC.
$12,043
BIOTRONIK INC.
$4,274
Biosense Webster, Inc.
$3,580
Boston Scientific Corporation
$2,373
Medtronic, Inc.
$1,032
Medical Device Business Services, Inc.
$1,000
Respicardia, Inc.
$873
Impulse Dynamics (USA) Inc.
$821
Medtronic Vascular, Inc.
$394
AtriCure, Inc.
$384
Bard Peripheral Vascular, Inc.
$375
Acutus Medical, Inc.
$330
BOSTON SCIENTIFIC CORPORATION
$302
E.R. Squibb & Sons, L.L.C.
$267
CARDIVA MEDICAL, INC.
$250
Baxter Healthcare
$195
Cook Medical LLC
$187
Janssen Pharmaceuticals, Inc
$185
CVRx, Inc.
$164
BioSig Technologies, Inc.
$153
CardioFocus, Inc.
$98
Aziyo Biologics, Inc.
$72
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$69
PFIZER INC.
$60
AstraZeneca Pharmaceuticals LP
$52
Stryker Corporation
$45
AltaThera Pharmaceuticals LLC
$36
BARD PERIPHERAL VASCULAR, INC.
$33
Alnylam Pharmaceuticals Inc.
$23
Lundbeck LLC
$21
SANOFI-AVENTIS U.S. LLC
$20
iRhythm Technologies, Inc.
$17
Merck Sharp & Dohme LLC
$16
ZOLL Respicardia, Inc.
$16
Philips Electronics North America Corporation
$14
Amgen Inc.
$12
Top 3 companies account for 91.2% of all-time payments
Associated products mentioned in payments ›
(7999) SRC Undivided · ACCENT · ACCOLADE SR · ACUTHERM Catheter · ADVISOR · AGILIS · AGILIS HISPRO · AMPERE · AMPLATZER AMULET · AMPLATZER Occluders · AMPLATZER TORQVUE 45 X 45 · ANDEXXA · ASSURITY · ATRICLIP LAA EXCLUSION SYSTEM · ATTAIN COMMAND + SUREVALVE · AVEIR · AZURE XT DR MRI SURESCAN · Ablation Therapy Hardware · Accent Pacemaker · Adapta · Advisa · Advisor Catheter · Agilis NxT EP Introducer · Allure CRT Pacemaker · Allure Quadra RF CRT Pacemaker · Ampere RF Ablation Generator · Angio-Seal Vascular Closure Dev · Arctic Front · Assurity Pacemaker · BG Mini Plus · BRK EP Transseptal Access · Barostim Neo System · BioMonitor · BioMonitor 2 · BodyGuardian · CAMZYOS · CARDIOBLATE CRYOFLEX · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · CARTO 3 · COBALT DR MRI SURESCAN · CONFIRM RX · CRM-Research only · CRT-Ds · Cardiac Mapping System · CardioMEMS HF System · Carto 3 · Carto 3 System · Carto Smarttouch · CartoSound · CartoUnivu · Cartoreplay · Circular Mapping Catheters · Claria MRI · Confirm Rx · Connectivity and Remote care · Cook Medical Lead Management - Lead Extraction · CoreValve Evolut · ECM Patch · ELIQUIS · EMBLEM · EMBLEM MRI S-ICD · ENSITE · ENSITE PRECISION · EP Guiding Introducers · EP Recording Systems · EP Transseptal Access · EP-4 · EP-Research Only · EP-WorkMate Claris System · EP-WorkMate Recording System · EPI-SENSE GUIDED COAGULATION SYS · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · ESSENTIO SR · EVOLUTION · Ellipse ICD · EnSite Precision Cardiac Mapping System · EnSite Velocity System Expansion Modules · EnSite Velocity System Mapping Disposables · EnSite X · Endurant · Ensite Cardiac Mapping System · FLEXABILITY · FORTIFY ASSURA · FlexAbility Ablation Catheter · Fortify Assura · GALLANT · GENERAL STRUCTURAL HEART · GENERAL THERAPIES · GENERAL - EP · GENERAL THERAPIES · General - Brady · General - Tachy · General - Therapies · HOFFMANN · HeartMate 3 Left Ventricular Dev · Inquiry EP Diagnostic Catheters · Inquiry Steerable Catheters · LATITUDE Communicator Power Supply · LINQ II · LUTONIX · LUX-Dx Insertable Cardiac Monitor · LifeVest · Livewire Steerable Catheters · MICRA · MITRACLIP · MULTAQ · MYCARELINK · MediGuide Technology · Merlin Connectivity and Remote · Micra · MitraClip System · NA · NORTHERA · Nanostim Leadleas Pacemaker · OCTARAY MAPPING CATHETER · ONPATTRO · OPTIMIZER · Optimizer · Optimizer Smart System · PERCLOSE PROGLIDE · PERCLOT · PULSESELECT · PURE EP SYSTEM · Pacemakers · Pouch · QUADRA ASSURA · QUARTET · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · Quartet CRT Lead · RESONATE · RESONATE EL ICD VR · RHYTHMIA · Repatha · Rivacor · Rotarex · SENSOR ENABLED · SQ-RX PULSE GENERATOR · SYNERGY ABLATION SYSTEM · Sotalol Hydrochloride · Standard Ablation Catheters · TACTICATH · TACTICATH ABLATION CATHETER · TENDRIL · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · TactiCath Quartz CFA Catheter · VANTAGEVIEW · VENOVO · VERQUVO · VIEWMATE · VIGILANT · Vascular Closure Device · ViewFlex Xtra ICE Catheter · ViewMate Intracardiac Echo · WATCHMAN · WATCHMAN Access System · XARELTO · Zio monitor · myLUX Patient Kit with mobile device · remede System
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Internal medicine physicians in nearby ZIP areas
2,667
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
MEMORIAL HERMANN - TEXAS MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Hariharan is a remote & electrophysiology specialist, with above-average Medicare volume (top 3% in TX), with 20 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. Hariharan experienced with remote monitoring of implantable heart device, up to 30 days?
Based on Medicare claims data, Dr. Hariharan performed 2,920 remote monitoring of implantable heart device, up to 30 days services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Hariharan receive payments from pharmaceutical companies?
Yes. Dr. Hariharan received a total of $201,040 from 38 companies across 1,010 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Hariharan's costs compare to other internal medicine physicians in Houston?
Dr. Hariharan's average Medicare payment per service is $30. 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. Hariharan) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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