PATRICK CHARLES DILLAWN (M.D.) – Surgery Physician, NPI 1225017155
Surgery Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
2,644 GENERAL SURGERY in TX
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Provider Addresses for PATRICK CHARLES DILLAWN (M.D.)
301, Seton Parkway, Round Rock, Williamson County, Texas, 78665, United States
SUITE 402
ROUND ROCK, TX 786658002
Phone: (512) 324-4818
Fax: (512) 324-4726
Type: Location
4213 Camacho St
Austin, TX 787235389
Phone: (512) 657-4427
Type: Location
PO BOX 844658
DALLAS, TX 752844658
Phone: (800) 994-0371
Fax: (254) 215-9722
Type: Mailing
800 W HIGHWAY 71
MARBLE FALLS, TX 786548606
Phone: (830) 201-7100
Type: Location
4213 CAMACHO ST
AUSTIN, TX 787235389
Phone: (512) 657-4427
Type: Mailing
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 $5,889.
Total Amount is formed as General ($5,889) + Research ($0) + Ownership ($0) = $5,889.
Last reported payment date: 2024-11-26 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($5,531).
Total Amount
$5,889
General + Research + Ownership
Payments
14
Total payment records
General Amount
$5,889
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
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $5,531 |
| Davol Inc. | $358 |
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: 2022-01-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040920000198 | I | General Surgery | TX | TBD |
| I20220125002810 | I | General Surgery | NC | 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 |
|---|---|---|---|---|
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 60 | 26 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 35 | 35 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 16 | 15 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 14 | 13 | $0 |
Insurance plans in this area (ZIP 78665)
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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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