DR. DARREN EDWARD HARRISON (MB BCH BAO) – Internal Medicine Physician, NPI 1124517172
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,430 CARDIOVASCULAR DISEASE (CARDIOLOGY) in TX
Provider Addresses for DR. DARREN EDWARD HARRISON (MB BCH BAO)
1111 E CESAR CHAVEZ ST
AUSTIN, TX 787024209
Phone: (512) 978-8130
Type: Mailing
2802 WEBBERVILLE RD
AUSTIN, TX 787022947
Phone: (512) 978-8113
Type: Location
58, Charles Drive, Wolcott, New Haven County, Connecticut, 06716, United States
WOLCOTT, CT 06716
Phone: (203) 704-7371
Type: Mailing
1 BAYLOR PLZ # BCM620
HOUSTON, TX 770303498
Phone: (203) 704-7371
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $308.
Total Amount is formed as General ($308) + Research ($0) + Ownership ($0) = $308.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Impulse Dynamics (USA) Inc. ($185).
Total Amount
$308
General + Research + Ownership
Payments
3
Total payment records
General Amount
$308
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Impulse Dynamics (USA) Inc. | $185 |
| ABIOMED | $107 |
| Boston Scientific Corporation | $16 |
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: 2021-11-30
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 |
|---|---|---|---|---|
| I20211130001030 | I | Cardiovascular Disease (Cardiology) | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 34 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 78702)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Registered Dietitian Or Nutrition Professional | TX | |
| R H E U M A T O L O G Y | TX | |
| Pulmonary Disease, Critical Care (Intensivists) | TX | |
| Physician Assistant | MA | |
| Registered Dietitian Or Nutrition Professional | TX | |
| N E P H R O L O G Y | TX | |
| Physical Medicine And Rehabilitation | TX | |
| Family Practice | TX | |
| Nurse Practitioner | CA | |
| Internal Medicine | TX |
Reviews
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