Katherine St Clair, PAC
NPI 1831412758 · Physician Assistant · Corsicana, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine St Clair, PAC is a Physician Assistant provider in Corsicana, TX (NPI 1831412758).
Provider details
- NPI number
- 1831412758
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Female
- Sole proprietor
- No
- License
- PA06767 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,167 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,295 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 638 | $77 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 393 | $45 |
| Destruction of Skin Growth, 1-14 Growths17110 | 191 | $92 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 135 | $95 |
| Biopsy of Related Skin Growth, First Growth |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 159 | 74 |
| Triamcinolone Acetonide | 153 | 115 |
| Clobetasol Propionate | 150 | 88 |
| Hydrocortisone | 52 | 36 |
| Fluocinonide | 35 | 18 |
| Fluorouracil | 32 | 27 |
| Doxycycline Hyclate | 31 | 22 |
| Prednisone | 27 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,055 across 52 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-05
- Last updated
- 2022-01-12
- Certified
- 2022-01-12
Frequently asked questions
- What is Katherine St Clair's NPI number?
- Katherine St Clair's National Provider Identifier (NPI) is 1831412758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine St Clair's specialty?
- Katherine St Clair is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine St Clair located?
- Katherine St Clair's practice location on file with NPPES is 401 Hospital Dr Ste 100, Corsicana, TX 75110-2415.
- What is Katherine St Clair's phone number?
- The practice phone number listed in the NPPES registry for Katherine St Clair is (903) 875-0413.
- Does Katherine St Clair accept Medicare?
- Katherine St Clair is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine St Clair's NPI active?
- Yes — Katherine St Clair's NPI (1831412758) is active in the NPPES registry as of the last update on 2022-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.