Medicare Enrolled
Dr. Siddharth Mathur, MD
Internal Medicine · Crystal River, 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. Mathur 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. Mathur
Dr. Siddharth Mathur is an internal medicine specialist in Crystal River, FL, with 18 years of NPI registration. Based on federal Medicare data, Dr. Mathur performed 3,357 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mathur received a total of $96,631 from 45 pharmaceutical and/or device companies across 559 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. Mathur 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.
✓ 18 years of NPI registration
▲ Top 13% volume in FL
$96,631 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 | 112492 | Clear | January 31, 2028 | — |
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 ↗3,357
Medicare services
Top 13% in FL for internal medicine
Not available
Unique patients (not deduplicated)
$87
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 |
|---|---|---|---|
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
731 | $54 | $171 |
| 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. |
519 | $64 | $145 |
| Special tissue stain and interpretation A laboratory test using special stains to examine tissue samples, including the pathologist's review and written report of the findings. |
249 | $63 | $171 |
| Special stain test for organisms A laboratory test using special stains on tissue slides to identify microorganisms. The process includes the technical preparation of the slides and a professional interpretation of the results. |
245 | $87 | $171 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
219 | $77 | $312 |
| 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. |
194 | $94 | $170 |
| 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. |
174 | $94 | $150 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
145 | $214 | $500 |
| 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. |
140 | $76 | $200 |
| 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. |
134 | $134 | $250 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
129 | $91 | $171 |
| 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. |
125 | $122 | $250 |
| Tissue staining for diagnosis, initial A laboratory test where special stains are applied to tissue slides to help examine the cells and identify specific characteristics. |
71 | $78 | $171 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
54 | $124 | $536 |
| Esophageal dilation with guide wire and endoscope A flexible endoscope is used to insert a guide wire into the esophagus, followed by dilation to widen the esophageal passage. |
52 | $127 | $350 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
41 | $86 | $242 |
| Ultrasound scan of organ tissue for measuring elasticity This procedure uses ultrasound technology to assess the stiffness or elasticity of organ tissues. It helps evaluate tissue characteristics without invasive methods. |
38 | $77 | $150 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
32 | $184 | $550 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
25 | $176 | $550 |
| Esophageal function monitoring via capsule This procedure involves monitoring and recording the function of the esophagus using a small capsule attached to the esophageal wall. |
15 | $359 | $850 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
14 | $140 | $350 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
11 | $13 | $508 |
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 ↗$96,631
Total received (2018-2024)
Avg $13,804/year across 7 years
Top 1% in FL for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
559
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
$76,704
2023
$1,456
2022
$1,734
2021
$993
2020
$2,149
2019
$1,673
2018
$11,920
Payments by company (2024)
Phathom Pharmaceuticals, Inc.
$74,923
ABBVIE INC.
$280
Janssen Biotech, Inc.
$195
Ipsen Biopharmaceuticals, Inc
$190
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$184
Madrigal Pharmaceuticals
$167
GENZYME CORPORATION
$153
Celgene Corporation
$141
Lilly USA, LLC
$92
Boston Scientific Corporation
$68
Takeda Pharmaceuticals U.S.A., Inc.
$50
AIMMUNE THERAPEUTICS, INC.
$45
Enterra Medical, Inc.
$35
Ferring Pharmaceuticals Inc.
$33
PFIZER INC.
$31
Endogastric Solutions, Inc
$26
Regeneron Healthcare Solutions, Inc.
$23
Gilead Sciences, Inc.
$19
Intercept Pharmaceuticals, Inc.
$19
Exact Sciences Corporation
$17
Medtronic, Inc.
$15
Top 3 companies account for 98.3% of 2024 payments
All-time payments by company (2018-2024) ›
Phathom Pharmaceuticals, Inc.
$74,923
Synergy Pharmaceuticals Inc
$10,347
Boston Scientific Corporation
$1,439
Endogastric Solutions, Inc
$1,306
ABBVIE INC.
$1,078
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$870
AbbVie, Inc.
$795
AbbVie Inc.
$709
Allergan Inc.
$517
Janssen Biotech, Inc.
$468
Celgene Corporation
$445
Takeda Pharmaceuticals U.S.A., Inc.
$436
Ferring Pharmaceuticals Inc.
$396
Medtronic, Inc.
$347
Gilead Sciences, Inc.
$333
PFIZER INC.
$255
Nestle HealthCare Nutrition Inc.
$210
Ipsen Biopharmaceuticals, Inc
$190
Madrigal Pharmaceuticals
$167
GENZYME CORPORATION
$153
E.R. Squibb & Sons, L.L.C.
$127
Janssen Scientific Affairs, LLC
$120
Lilly USA, LLC
$115
Intercept Pharmaceuticals, Inc.
$102
UCB, Inc.
$97
Merck Sharp & Dohme Corporation
$95
INTERCEPT PHARMACEUTICALS, INC.
$78
FUJIFILM Healthcare Americas Corporation
$71
Alnylam Pharmaceuticals Inc.
$62
Enterra Medical, Inc.
$49
AIMMUNE THERAPEUTICS, INC.
$45
Lucid Diagnostics Inc.
$37
Organon LLC
$33
Ironwood Pharmaceuticals, Inc
$29
Shire North American Group Inc
$28
VIVUS LLC
$25
Regeneron Healthcare Solutions, Inc.
$23
Boehringer Ingelheim Pharmaceuticals, Inc.
$20
Exact Sciences Corporation
$17
Axonics Modulation Technologies, Inc.
$16
RedHill Biopharma Inc.
$14
Ardelyx, Inc.
$14
NESTLE HEALTHCARE NUTRITION INC.
$13
Shionogi Inc
$12
Medtronic USA, Inc.
$11
Top 3 companies account for 89.7% of all-time payments
Associated products mentioned in payments ›
APRISO · Amitiza · Axonics r-SNM System · BARRX · BRAVO · CIMZIA · CLENPIQ · CREON · CYLTEZO · Cimzia · Cologuard Collection Kit · Creon · DIFICID · DUOPA · DUPIXENT · ENDOFLIP · ENTYVIO · ESOPHYX · EXALT Model D · Entyvio · Epclusa · FUJIFILM · GATTEX · GENERAL GI DILATATION · GENERAL POLYPECTOMY · GENERAL - POLYPECTOMY · GIVLAARI · General - Biopsy · HADLIMA · HUMIRA · Humira · IBSRELA · INFLECTRA · INTERSTIM · IQIRVO · LINZESS · Linzess · MAVYRET · Mavyret · Mulpleta · NEXPOWDER · OCALIVA · OMVOH · PILLCAM · PLENVU · QSYMIA · Qsymia · REBYOTA · RELISTOR · REMICADE · RESMETIROM · RESOLUTION CLIP · REZDIFFRA · RINVOQ · SKYRIZI · STELARA · TREMFYA · TRULANCE · Talicia · Trulance · VIBERZI · VOQUEZNA · WATCHMAN FLX · XELJANZ · XIFAXAN · ZENPEP · ZEPATIER · ZEPOSIA
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
116
County median income
$55,355
Nearest hospital to ZIP centroid (approximate)
TAMPA GENERAL HOSPITAL CRYSTAL RIVER
6.6 mi
6.6 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. Mathur is a clinical cardiology specialist, with above-average Medicare volume (top 13% in FL), with 18 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. Mathur experienced with tissue pathology examination, moderate complexity?
Based on Medicare claims data, Dr. Mathur performed 731 tissue pathology examination, moderate complexity 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. Mathur receive payments from pharmaceutical companies?
Yes. Dr. Mathur received a total of $96,631 from 45 companies across 559 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. Mathur's costs compare to other internal medicine physicians in Crystal River?
Dr. Mathur's average Medicare payment per service is $87. 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. Mathur) 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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