MARK EISNER (MD) – Gastroenterology Physician, NPI 1902815103
Gastroenterology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,474 GASTROENTEROLOGY in FL
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Provider Addresses for MARK EISNER (MD)
38135, Market Square, Zephyrhills, Pasco County, Florida, 33542, United States
ZEPHYRHILLS, FL 33542
Phone: (813) 780-7534
Fax: (813) 715-1810
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 268 Open Payments records for all available years, with a total value of $4,700.
Total Amount is formed as General ($4,700) + Research ($0) + Ownership ($0) = $4,700.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: ABBVIE INC. ($1,865).
Total Amount
$4,700
General + Research + Ownership
Payments
268
Total payment records
General Amount
$4,700
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $1,865 |
| PFIZER INC. | $553 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $513 |
| Janssen Biotech, Inc. | $272 |
| Celgene Corporation | $213 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2021-04-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100322000769 | I | Gastroenterology | FL | TBD |
| I20210421000603 | I | Gastroenterology | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 776 | 412 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 147 | 137 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 78 | 78 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 59 | 59 | $0 |
| 43248 | Insertion of guide wire with dilation of esophagus using a flexible endoscope | 58 | 55 | $0 |
Insurance plans in this area (ZIP 33542)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | FL | |
| Diagnostic Radiology | FL | |
| Gastroenterology, Internal Medicine | IA | |
| Vascular Surgery, General Surgery | FL | |
| Family Practice | KY | |
| Nurse Practitioner | FL | |
| R H E U M A T O L O G Y | FL | |
| Physician Assistant | FL | |
| Physician Assistant | FL | |
| P S Y C H I A T R Y | FL |
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