DR. JAMES BLAKE HARRISON (M.D.) – Vascular Surgery Physician, NPI 1245232735
Vascular Surgery Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
2,646 GENERAL SURGERY in TX
Provider Addresses for DR. JAMES BLAKE HARRISON (M.D.)
5251 W HIGHWAY 290
AUSTIN, TX 787358963
Phone: (512) 651-3000
Type: Location
Tyler Neurosurgical Associates, 700, Olympic Plaza Circle, Tyler, Smith County, Texas, 75701, United States
SUITE 510
TYLER, TX 757011952
Phone: (903) 595-2636
Fax: (903) 595-5560
Type: Mailing
PO BOX 844658
DALLAS, TX 752844658
Phone: (254) 724-2111
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 9 Open Payments records for all available years, with a total value of $386.
Total Amount is formed as General ($386) + Research ($0) + Ownership ($0) = $386.
Last reported payment date: 2024-07-25 • Largest payer in this snapshot: Silk Road Medical, Inc. ($204).
Total Amount
$386
General + Research + Ownership
Payments
9
Total payment records
General Amount
$386
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-25
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: 2011-09-29
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 |
|---|---|---|---|---|
| I20110929000127 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 91 | 91 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 69 | 54 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 67 | 35 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 47 | 47 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 25 | 22 | $0 |
Insurance plans in this area (ZIP 78735)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | TX | |
| U R O L O G Y | TX | |
| General Surgery | OK | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| - | TX | |
| Anesthesiology Assistant | TX | |
| - | TX | |
| - | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | TX |
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