MARLYN JEAN MAYO (MD) – Hepatology Physician, NPI 1003872292
Hepatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,500 GASTROENTEROLOGY in TX
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Provider Addresses for MARLYN JEAN MAYO (MD)
Band Box Place, Dallas, Dallas County, Texas, 75244, United States
DALLAS, TX 752845347
Phone: (214) 645-8600
Type: Mailing
University of Texas Southwestern Medical Center, 5323, Harry Hines Boulevard, Dallas, TX, Dallas, Dallas County, Texas, 75390, United States
DALLAS, TX 753907208
Phone: (214) 645-8600
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 14 Open Payments records for all available years, with a total value of $22,865.
Total Amount is formed as General ($22,865) + Research ($0) + Ownership ($0) = $22,865.
Last reported payment date: 2024-12-06 • Largest payer in this snapshot: IRONWOOD PHARMACEUTICALS, INC ($11,050).
Total Amount
$22,865
General + Research + Ownership
Payments
14
Total payment records
General Amount
$22,865
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| IRONWOOD PHARMACEUTICALS, INC | $11,050 |
| Intercept Pharmaceuticals, Inc. | $3,520 |
| Intra-Sana Laboratories | $3,000 |
| Ipsen Biopharmaceuticals, Inc | $2,965 |
| Ipsen Pharma SAS | $2,094 |
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: 2005-01-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20050121000147 | 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 | 58 | 48 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 14 | 13 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 13 | 13 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 11 | 11 | $0 |
Insurance plans in this area (ZIP 75284)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Diagnostic Radiology | TX | |
| Anesthesiology, Pain Management | FL | |
| - | TX | |
| Internal Medicine | TX | |
| - | TX | |
| U R O L O G Y | TX | |
| - | TX | |
| - | TX | |
| Certified Registered Nurse Anesthetist (Crna) | TX |
Reviews
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