Medicare Enrolled
Dr. Natarajan Subramanian, M.D.
Critical Care Medicine · Tampa, FL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Subramanian 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. Subramanian?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Subramanian
Dr. Natarajan Subramanian is a critical care medicine specialist in Tampa, FL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Subramanian performed 1,290 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Subramanian received a total of $12,256 from 53 pharmaceutical and/or device companies across 374 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. Subramanian 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 of NPI registration
▲ Top 28% volume in FL
$12,256 industry payments
Florida License Status
FL DOH · MQA1
Active license
None
Board action on record
0
Recent admin complaints
| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 80442 | Clear | January 31, 2027 | — |
Data from Florida Department of Health Medical Quality Assurance.
License records are public under Chapter 119, Florida Statutes.
Verify directly on FL DOH →
Medicare Practice Summary — 2023
Medicare Utilization ↗1,290
Medicare services
Top 28% in FL for critical care medicine
Not available
Unique patients (not deduplicated)
$93
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 |
|---|---|---|---|
| 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. |
478 | $90 | $141 |
| 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. |
250 | $93 | $195 |
| Home sleep test with portable monitor An unattended sleep study performed at home using a portable monitor that records breathing, heart rate, and oxygen levels. |
93 | $67 | $300 |
| 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. |
81 | $137 | $365 |
| New patient office visit, complex (60-74 min) | 77 | $161 | $270 |
| 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. |
69 | $165 | $430 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
35 | $29 | $85 |
| Exercise-induced lung stress test A test performed to evaluate how the lungs function during physical exertion. It helps identify breathing difficulties or lung conditions that occur specifically when exercising. |
35 | $25 | $150 |
| Lung volume test using sensors A test that measures the amount of air in the lungs using sensors. |
35 | $40 | $90 |
| Pulmonary gas exchange test A test to examine how well the lungs exchange gases. |
35 | $42 | $90 |
| 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. |
30 | $58 | $145 |
| 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. |
28 | $54 | $110 |
| Sleep study with continuous airway pressure, age 6+ A sleep study conducted in a sleep lab that monitors breathing and other body functions while administering continuous airway pressure. This test is performed on patients aged 6 years or older. |
22 | $95 | $275 |
| Sleep study in sleep lab (age 6+) An overnight test conducted in a sleep laboratory to monitor sleep patterns and bodily functions in patients aged 6 years or older. |
11 | $85 | $250 |
| 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. |
11 | $128 | $215 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$12,256
Total received (2018-2024)
Avg $1,751/year across 7 years
Top 15% in FL for critical care medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
53
Companies
374
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
$5,939
2023
$1,321
2022
$1,268
2021
$622
2020
$1,066
2019
$1,166
2018
$873
Payments by company (2024)
INTUITIVE SURGICAL, INC.
$4,000
GlaxoSmithKline, LLC.
$443
AstraZeneca Pharmaceuticals LP
$357
Inspire Medical Systems, Inc.
$258
Insmed, Inc.
$115
Itamar Medical Inc
$101
HARMONY BIOSCIENCES LLC
$97
GENZYME CORPORATION
$90
Boehringer Ingelheim Pharmaceuticals, Inc.
$64
Regeneron Healthcare Solutions, Inc.
$61
Amgen Inc.
$60
Philips North America LLC
$54
United Therapeutics Corporation
$32
Baxter Healthcare
$29
Harmony Biosciences Llc
$28
Actelion Pharmaceuticals US, Inc.
$23
Grifols USA, LLC
$21
PFIZER INC.
$21
Avadel CNS Pharmaceuticals, LLC
$20
Resmed Corp
$18
Pulmonx Corporation
$18
Mylan Specialty L.P.
$15
Electromed, Inc.
$14
Top 3 companies account for 80.8% of 2024 payments
All-time payments by company (2018-2024) ›
INTUITIVE SURGICAL, INC.
$4,000
AstraZeneca Pharmaceuticals LP
$1,435
GlaxoSmithKline, LLC.
$1,422
Medtronic Vascular, Inc.
$617
GENZYME CORPORATION
$485
Inspire Medical Systems, Inc.
$454
Harmony Biosciences LLC
$340
Boehringer Ingelheim Pharmaceuticals, Inc.
$285
Mylan Specialty L.P.
$222
Insmed, Inc.
$221
JAZZ PHARMACEUTICALS INC.
$217
Jazz Pharmaceuticals Inc.
$185
Genentech USA, Inc.
$162
Philips Electronics North America Corporation
$144
Watermark Medical, Inc.
$141
Penumbra, Inc.
$134
Regeneron Healthcare Solutions, Inc.
$130
Amgen Inc.
$113
Actelion Pharmaceuticals US, Inc.
$104
Itamar Medical Inc
$101
HARMONY BIOSCIENCES LLC
$97
Baxter Healthcare
$92
PFIZER INC.
$78
Electromed, Inc.
$77
Novartis Pharmaceuticals Corporation
$73
Biosense Webster, Inc.
$72
Grifols USA, LLC
$71
United Therapeutics Corporation
$57
PORTOLA PHARMACEUTICALS, INC.
$57
Circassia Pharmaceuticals Inc
$56
Resmed Corp
$54
Philips North America LLC
$54
ADVANCED RESPIRATORY, INC
$41
Allergan Inc.
$37
Advanced Respiratory, Inc
$34
Shionogi Inc
$32
Paratek Pharmaceuticals, Inc.
$32
Inogen, Inc.
$30
Teva Pharmaceuticals USA, Inc.
$30
Harmony Biosciences Llc
$28
Mallinckrodt Hospital Products Inc.
$24
Biogen, Inc.
$23
SANOFI-AVENTIS U.S. LLC
$21
Lundbeck LLC
$20
Vapotherm Inc
$20
Avadel CNS Pharmaceuticals, LLC
$20
Medtronic, Inc.
$19
AbbVie Inc.
$19
Pulmonx Corporation
$18
Nabriva Therapeutics, plc
$16
Gilead Sciences, Inc.
$15
Sunovion Pharmaceuticals Inc.
$14
Mallinckrodt Enterprises LLC
$12
Top 3 companies account for 55.9% of all-time payments
Associated products mentioned in payments ›
(6299) DreamWear · (8744) Trilogy Evo · (8946) DS2 A cell core · (AE4) Secretion Management · ACTHAR · AIRSENSE · AIRSUPRA · ANDEXXA · ANORO · ANORO ELLIPTA · ARES HOME SLEEP TESTING DEVICE · AREXVY · AVYCAZ · AirDuo Digihaler · Arikayce · BEVESPI AEROSPHERE · BREO · BREZTRI · BROVANA · CHANTIX · CHARTIS CATHETER · CINQAIR · Carto 3 System · DUPIXENT · Da Vinci Surgical System · ELIQUIS · FARXIGA · FASENRA · Fetroja · Hillrom - Vest System Model 105 Home Care · IMFINZI · INOGEN ONE G5 OXYGEN CONCENTRATOR - BLUETOOTH · INSPIRE · LUMRYZ · Lunoa 1 0 · Micra · NO PRODUCT DISCUSSED · NORTHERA · NUCALA · NUZYRA · OFEV · OPSUMIT · ORENITRAM · PREVNAR - 13 · PREVNAR 20 · Penumbra SMART Coil · Perforomist · Prolastin-C Liquid · Reveal LINQ · SMARTVEST · SPINRAZA · STIOLTO RESPIMAT · SUNOSI · SYMBICORT · TEFLARO · TEZSPIRE · TRELEGY ELLIPTA · TUDORZA PRESSAIR · TYVASO · The Vest System Model 105 Home Care · VAPOTHERM · WAKIX · Wakix · WatchPATONE · XOLAIR · XYREM · XYWAV · Xenleta · Xofluza · Xolair · Xyrem · YUPELRI · Yupelri
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
Critical care medicines in nearby ZIP areas
62
County median income
$75,011
Nearest hospital to ZIP centroid (approximate)
AdventHealth Carrollwood
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. Subramanian is a clinical cardiology specialist, with above-average Medicare volume (top 28% in FL), 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. Subramanian experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Subramanian performed 478 office visit, established patient (30-39 min) 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. Subramanian receive payments from pharmaceutical companies?
Yes. Dr. Subramanian received a total of $12,256 from 53 companies across 374 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. Subramanian's costs compare to other critical care medicines in Tampa?
Dr. Subramanian's average Medicare payment per service is $93. 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. Subramanian) 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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