Jack Wesley Wallis, MD
Family Medicine Physician · San Marcos, TX
Jack Wesley Wallis, MD is a family medicine physician with a practice address in San Marcos, Texas, and NPI 1962484733, issued on Nov 17, 2005. Check the license (Texas G8488, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jack Wesley Wallis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G8488 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2108 Hunter RD, San Marcos, TX 78666
- Phone
- (512) 754-7700
- Enumerated
- Nov 17, 2005
- Record last updated
- Sep 14, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (512) 754-0012
- Medicaid ID
- 122902302 TX
- Medicare enrollment
- Enrolled (PECOS I20110106000571); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 2108 Hunter RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alan Parks, MDObstetrics & Gynecology Physician1801991021
Verify Jack Wesley Wallis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G8488Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average family medicine physician in 2024
4,786 Medicare Part D claims for 332 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 42 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium272 claims
- Atorvastatin Calcium197 claims
- Amlodipine Besylate191 claims
- Losartan Potassium157 claims
- Sertraline Hcl135 claims
- Levothyroxine Sodium113 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- David P Ellent PLLCSan Marcos, TX
- Seton Family OF DoctorsSan Marcos, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Wesley Wallis among 11,119 family medicine physician records in Texas
Jack Wesley Wallis, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1980 · median 2004 among the 7,095 with a school on file
- Record last updated2010 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 family medicine physician records list a practice address in San Marcos
They are 27 of the 1,003 NPPES records with a practice address in San Marcos, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in San Marcos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gregory Colon, MDSan Marcos, TX 786661972594141
- Sarah Doss, M.D.San Marcos, TX 786661679599732
- Jennifer Driskell, MDSan Marcos, TX 786661386634657
- Roy Hotz, MDSan Marcos, TX 786661477666824
- John Jackson, M.D.San Marcos, TX 786661457350902
- Alan Lee, M.D.San Marcos, TX 786661336164425
- Jacqueline Livingston, DOSan Marcos, TX 786661326004912
- Vip Mangalick, MDSan Marcos, TX 786661437347697
Common questions
What is Jack Wesley Wallis, MD's NPI number?
Jack Wesley Wallis, MD's National Provider Identifier (NPI) is 1962484733, issued on Nov 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jack Wesley Wallis, MD located?
The NPPES record lists a practice address at 2108 Hunter RD, San Marcos, TX, 78666. Phone: (512) 754-7700. Providers update this record themselves, so call before visiting.
How can I verify Jack Wesley Wallis, MD's license?
NPPES lists Texas license number G8488, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jack Wesley Wallis, MD prescribe under Medicare Part D?
In 2024, Jack Wesley Wallis, MD had 4,786 Medicare Part D claims for 332 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.