NPI age
3 years
Enumerated 2022-05-31
● Active
Type 1 · Individual
Katharine Johanna Wiswall, PA-C
Wiswall is 1 of 866 physician assistant providers in San Antonio and 1 of 11022 in Texas.
Primary specialty
Physician Assistant
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-04-02
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 11022 active physician assistant providers in Texas.
NPI age
3 years
↓ 7 yr below median (10 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
1
In the 23% of peers with subspecialties
NPI lifetime · 2022 → 2026
2022-05Enumerated in NPPES
2022
2026
Where they practice
Practice location
903 W Martin St # MS 49-2
San Antonio, TX 782070903
Mailing address
903 W Martin St
San Antonio, TX 782070903
Specialties
-
Physician Assistant PrimaryA physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally...
-
Nurse PractitionerDefinition to come...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 | 1191480 | NCCPA |
| 01 (TX) | PA15665 | TEXAS MEDICAL BOARD |
Practice context
Part of a multi-provider practice. 18 other active providers share this practice address in NPPES.
Recently enumerated nearby: 8 new physician assistant providers have been added in San Antonio in the last 180 days.
See all →
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.