JACK WESLEY WALLIS (MD) – Family Medicine Physician, NPI 1962484733
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,705 FAMILY PRACTICE in TX
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Provider Addresses for JACK WESLEY WALLIS (MD)
Hunter Road, San Marcos, Hays County, Texas, 78666-5923, United States
SUITE 116
SAN MARCOS, TX 786665156
Phone: (512) 754-7700
Fax: (512) 754-0012
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $199.
Total Amount is formed as General ($199) + Research ($0) + Ownership ($0) = $199.
Last reported payment date: 2023-06-03 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($124).
Total Amount
$199
General + Research + Ownership
Payments
2
Total payment records
General Amount
$199
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $124 |
| Takeda Pharmaceuticals U.S.A., Inc. | $75 |
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: 2011-01-06
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 |
|---|---|---|---|---|
| I20110106000571 | I | Family Practice | 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 | 376 | 197 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 160 | 160 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 87 | 59 | $0 |
| G0008 | Administration of influenza virus vaccine | 56 | 54 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 53 | 52 | $0 |
Insurance plans in this area (ZIP 78666)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | TX | 81002 | Urinalysis, manual test | 14 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | TX | |
| Radiation Oncology | TX | |
| Family Practice | TX | |
| R H E U M A T O L O G Y | TX | |
| Family Practice | TX | |
| H E M A T O L O G Y/ O N C O L O G Y | KY | |
| Family Practice | TX | |
| - | TX | |
| - | TX | |
| U R O L O G Y | TX |
Reviews
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