DR. MICHAEL DWAYNE HENDERSON (M.D.) – Cardiovascular Disease Physician, NPI 1518166354
Cardiovascular Disease Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
2,430 CARDIOVASCULAR DISEASE (CARDIOLOGY) in TX
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Provider Addresses for DR. MICHAEL DWAYNE HENDERSON (M.D.)
2 SAINT MARKS PL STE 160
LA GRANGE, TX 789451253
Phone: (979) 242-5677
Fax: (979) 242-5680
Type: Mailing
Scenic Drive, Georgetown, Williamson County, Texas, 78626, United States
SUITE 3308
GEORGETOWN, TX 786267724
Phone: (512) 869-2566
Fax: (512) 869-7434
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 23 Open Payments records for all available years, with a total value of $419.
Total Amount is formed as General ($419) + Research ($0) + Ownership ($0) = $419.
Last reported payment date: 2024-11-26 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($106).
Total Amount
$419
General + Research + Ownership
Payments
23
Total payment records
General Amount
$419
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-26
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2025-12-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20160826000793 | I | Cardiovascular Disease (Cardiology) | TX | TBD |
| I20251218000124 | I | Cardiovascular Disease (Cardiology) | VI | TBD |
| I20251230003683 | I | Cardiovascular Disease (Cardiology) | PA | 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 |
|---|---|---|---|---|
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 1,046 | 801 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 836 | 603 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 574 | 404 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 314 | 311 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 160 | 160 | $0 |
Insurance plans in this area (ZIP 78945)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Orthopedic Surgery | TX | |
| Family Practice | TX | |
| Gynecological Oncology | MO | |
| Physician Assistant | TX | |
| Family Practice, Emergency Medicine | TX | |
| - | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| Pulmonary Disease, Critical Care (Intensivists) | TX | |
| Family Practice, Hospitalist | TX |
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