Medicare Enrolled

Dr. Mark Eisner, MD

Gastroenterology · Zephyrhills, FL
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
38135 MARKET SQUARE, Zephyrhills, FL 33542
8137807534
In practice since 2006 (19 years)
NPI: 1902815103 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. Eisner 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. Eisner

Dr. Mark Eisner is a gastroenterology specialist in Zephyrhills, FL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Eisner performed 1,365 Medicare services across 982 unique beneficiaries.

Between the years covered by Open Payments, Dr. Eisner received a total of $13,941 from 53 pharmaceutical and/or device companies across 745 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. 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. Eisner 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.

✓ 19 years in practice ▲ Top 22% volume in FL $13,941 industry payments

Florida License Status

FL DOH · MQA
1
Active license
None
Board action on record
0
Recent admin complaints
Profession License # Status Expires Board Action
Medical Doctor 57600 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

Medicare Utilization ↗
1,365
Medicare services
Top 22% in FL for gastroenterology
982
Unique beneficiaries
$98
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~72 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) 776 $91 $273
Upper GI endoscopy with biopsy 147 $61 $896
New patient office visit (45-59 min) 78 $102 $415
Colonoscopy with biopsy 59 $125 $1,044
Insertion of guide wire with dilation of esophagus using a flexible endoscope 58 $117 $929
Colorectal cancer screening; colonoscopy on individual at high risk 57 $178 $817
Office visit, established patient (20-29 min) 42 $65 $186
Ultrasound scan of organ tissue for measuring elasticity 40 $78 $255
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 39 $209 $1,104
Diagnostic exam of large bowel using a flexible endoscope 26 $141 $818
Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery 19 $109 $1,166
New patient office visit (30-44 min) 12 $66 $273
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 12 $183 $818
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.

Industry Payment Transparency

Open Payments through 2024 ↗
$13,941
Total received (2018-2024)
Avg $1,992/year across 7 years
Top 11% in FL for gastroenterology
53
Companies
745
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
$13,901 (99.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$40 (0.3%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$2,561
2023
$2,138
2022
$1,801
2021
$395
2020
$665
2019
$2,171
2018
$4,210

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$2,578
Celgene Corporation
$2,236
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$2,097
PFIZER INC.
$1,025
AbbVie, Inc.
$1,003
Janssen Biotech, Inc.
$762
Takeda Pharmaceuticals U.S.A., Inc.
$495
Allergan Inc.
$292
AbbVie Inc.
$284
Intercept Pharmaceuticals, Inc.
$277
Ironwood Pharmaceuticals, Inc
$211
Gilead Sciences, Inc.
$184
IRONWOOD PHARMACEUTICALS, INC
$180
Braintree Laboratories, Inc.
$145
Lilly USA, LLC
$143
Synergy Pharmaceuticals Inc
$139
Nestle HealthCare Nutrition Inc.
$136
Romark Laboratories, LC
$127
AIMMUNE THERAPEUTICS, INC.
$121
Ferring Pharmaceuticals Inc.
$118
INTERCEPT PHARMACEUTICALS, INC.
$101
Myriad Women's Health, Inc.
$100
Amgen Inc.
$98
Merck Sharp & Dohme Corporation
$87
Phathom Pharmaceuticals, Inc.
$71
UCB, Inc.
$65
NESTLE HEALTHCARE NUTRITION INC.
$60
Shionogi Inc
$59
Ardelyx, Inc.
$58
RedHill Biopharma Inc.
$57
Pharming Healthcare, Inc.
$57
GENZYME CORPORATION
$56
Ipsen Biopharmaceuticals, Inc
$51
Regeneron Healthcare Solutions, Inc.
$43
Madrigal Pharmaceuticals
$40
Novartis Pharmaceuticals Corporation
$39
Daiichi Sankyo Inc.
$36
Shire North American Group Inc
$34
E.R. Squibb & Sons, L.L.C.
$31
Allergan, Inc.
$28
Prometheus Laboratories Inc.
$27
Bayer HealthCare Pharmaceuticals Inc.
$19
Merck Sharp & Dohme LLC
$17
AstraZeneca Pharmaceuticals LP
$16
Sysmex Inostics Inc
$16
Covidien LP
$16
Exact Sciences Corporation
$16
Karyopharm Therapeutics Inc.
$16
Organon Llc
$15
Medtronic, Inc.
$15
Dova Pharmaceuticals
$15
Organon LLC
$15
Boston Scientific Corporation
$14
Top 3 companies account for 49.6% of total payments
Associated products mentioned in payments ›
ALINIA · AMJEVITA · APRISO · Alinia · Alinia Tablets 500mg 30 count bottle · Amitiza · BYSTOLIC · CLENPIQ · CREON · Cimzia · Cologuard Collection Kit · Creon · DIFICID · DUPIXENT · Doptelet · ENTYVIO · EVENITY · Enbrel · Entyvio · Epclusa · GATTEX · GI GENIUS · HADLIMA · HUMIRA · Humira · IBSRELA · INFLECTRA · INJECTAFER · IQIRVO · JADENU · LINZESS · Linzess · MAVYRET · MOTEGRITY · MOVANTIK · MYRISK · Mavyret · Motegrity · Mulpleta · OCALIVA · OMVOH · Ozanimod · PLENVU · PillCam · Prolia · REBYOTA · RELISTOR · REMICADE · REZDIFFRA · RINVOQ · RUCONEST · SIMPONI ARIA · SKYRIZI · STELARA · SUFLAVE · SUPREP · SUPREP BOWEL PREP · SUTAB · Stivarga · Symproic · TASIGNA · TREMFYA · Talicia · Trulance · UCERIS · VIBERZI · VOQUEZNA · WATCHMAN FLX · XELJANZ · XIFAXAN · XIFAXANIBSD · XPOVIO · ZENPEP · ZEPATIER · ZEPOSIA
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Equivalent to $1,021 per 100 Medicare services performed
Looking for a gastroenterology specialist in Zephyrhills?
Compare gastroenterologists in the Zephyrhills area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Gastroenterologists within 10 mi
76
Per 100K population
12.9
County median income
$67,384
Nearest hospital
Adventhealth Zephyrhills
2.7 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 measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Eisner is a clinical cardiology specialist, with above-average Medicare volume (top 22% in FL), with low-engagement industry engagement in the top 11% of FL peers, with 19 years of NPI registration.

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. Eisner experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Eisner performed 776 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. Eisner receive payments from pharmaceutical companies?
Yes. Dr. Eisner received a total of $13,941 from 53 companies across 745 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. Eisner's costs compare to other gastroenterologists in Zephyrhills?
Dr. Eisner's average Medicare payment per service is $98. 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. Eisner) 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 →