MS. SABRINA PHILLIPS GARRISON (P.A.) – Physician Assistant, NPI 1578676417
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,491 PHYSICIAN ASSISTANT in TX
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Provider Addresses for MS. SABRINA PHILLIPS GARRISON (P.A.)
P O BOX 2660
BAY CITY, TX 774042660
Phone: (979) 245-2421
Fax: (979) 245-6263
Type: Mailing
513, South Columbia Drive, West Columbia, Brazoria County, Texas, 77486, United States
WEST COLUMBIA, TX 774863025
Phone: (979) 345-6522
Fax: (979) 345-4922
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $147.
Total Amount is formed as General ($147) + Research ($0) + Ownership ($0) = $147.
Last reported payment date: 2024-12-03 • Largest payer in this snapshot: Astellas Pharma US Inc ($85).
Total Amount
$147
General + Research + Ownership
Payments
5
Total payment records
General Amount
$147
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $85 |
| AstraZeneca Pharmaceuticals LP | $33 |
| Amgen Inc. | $15 |
| Exact Sciences Corporation | $14 |
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: 2007-07-30
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 |
|---|---|---|---|---|
| I20070730000357 | I | Physician Assistant | 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 | 30 | 28 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 28 | 25 | $0 |
Insurance plans in this area (ZIP 77404)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Internal Medicine, Nephrology | TX | |
| Internal Medicine, Nephrology | TX | |
| Nurse Practitioner | TX | |
| Internal Medicine, Nephrology | TX | |
| Internal Medicine | TX | |
| Internal Medicine, Nephrology | TX | |
| Nurse Practitioner | TX |
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