Katharine Johanna Wiswall, PA-C
Physician Assistant · San Antonio, TX
Katharine Johanna Wiswall, PA-C is a physician assistant with a practice address in San Antonio, Texas, and NPI 1376282236, issued on May 31, 2022. Check the license (Texas PA15665, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katharine Johanna Wiswall
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA15665 TX
Self-reported in NPPES; status is on the state search - Practice location
- 903 W Martin St # MS 49-2, San Antonio, TX 78207
- Phone
- (201) 358-5437
- Enumerated
- May 31, 2022
- Record last updated
- Apr 2, 2026
- Fax
- (210) 358-5890
- Entity
- Type 1 · individual
Also registered at 903 W Martin St # MS 49-2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katharine Johanna Wiswall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA15665Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $36.83
2 payments; by number, the most common kind was food and beverage; the largest payer was Cranial Technologies, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
873 physician assistant records list a practice address in San Antonio
They are 873 of the 37,749 NPPES records with a practice address in San Antonio, and 10,999 physician assistant records in Texas.
All 873 in San Antonio → All 10,999 in Texas → Every provider in San Antonio →
Other physician assistant records in Texas
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- Linda Abad, PA-CHouston, TX1063928240
- Hansaa AbbasiDallas, TX1013575679
- Alicia Abbey, MPAS, PA-CSan Antonio, TX1710468145
- Dallah Abdallahi, PADallas, TX1093294811
- Haya AbdellatifGalveston, TX1518409903
- Hillary Abdennassar, PA-CDallas, TX1245991793
- Hodan Abdi, PA-CDallas, TX1558750075
- Lama Abdillahi, PAGalveston, TX1396668604
Common questions
What is Katharine Johanna Wiswall, PA-C's NPI number?
Katharine Johanna Wiswall, PA-C's National Provider Identifier (NPI) is 1376282236, issued on May 31, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katharine Johanna Wiswall, PA-C located?
The NPPES record lists a practice address at 903 W Martin St # MS 49-2, San Antonio, TX, 78207. Phone: (201) 358-5437. Providers update this record themselves, so call before visiting.
How can I verify Katharine Johanna Wiswall, PA-C's license?
NPPES lists Texas license number PA15665, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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.