Katherine Michelle St Clair, PAC
Physician Assistant · Corsicana, TX
Katherine Michelle St Clair, PAC is a physician assistant with a practice address in Corsicana, Texas, and NPI 1831412758, issued on Mar 5, 2010. Check the license (Texas PA06767, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Michelle St Clair
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA06767 TX
Self-reported in NPPES; status is on the state search - Practice location
- 401 Hospital Dr Ste 100, Corsicana, TX 75110
- Phone
- (903) 875-0413
- Enumerated
- Mar 5, 2010
- Record last updated
- Jan 12, 2022
- Fax
- (903) 872-8165
- Medicare enrollment
- Enrolled (PECOS I20101109001298); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Verify Katherine Michelle St Clair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA06767Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average physician assistant in 2024
832 Medicare Part D claims for 352 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Ketoconazole159 claims
- Triamcinolone Acetonide153 claims
- Clobetasol Propionate150 claims
- Hydrocortisone52 claims
- Fluocinonide35 claims
- Fluorouracil32 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,054.53
52 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, 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.
Bills Medicare through one group practice
- Oliver Street 5.01(A) IncTyler, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Michelle St Clair among 10,999 physician assistant records in Texas
Katherine Michelle St Clair, PAC is one of 10,999 physician assistant records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 27% of them.
- NPI issued2010 · 27% of these records are older, 70% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2010 · median 2017 among the 6,096 with a school on file
- Record last updated2022 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 physician assistant records list a practice address in Corsicana
They are 4 of the 373 NPPES records with a practice address in Corsicana, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in Corsicana → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Amy Nold, PA-CCorsicana, TX 751101669737425
- Cora Schafer, PACorsicana, TX 751101831163674
- Joleen Volz, PACCorsicana, TX 751101487711347
- Madison Ramsey, PA-CCrandall, TX 751141417814807
- Phuong-Thao Chounlamany, PA-CDesoto, TX 751151871877209
- Liliana Espinoza, PADesoto, TX 751151467647669
- Debra Hunter, PADesoto, TX 751151104936509
- Benjamen Losoya, PA-CDesoto, TX 751151265970248
Common questions
What is Katherine Michelle St Clair, PAC's NPI number?
Katherine Michelle St Clair, PAC's National Provider Identifier (NPI) is 1831412758, issued on Mar 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Michelle St Clair, PAC located?
The NPPES record lists a practice address at 401 Hospital Dr Ste 100, Corsicana, TX, 75110. Phone: (903) 875-0413. Providers update this record themselves, so call before visiting.
How can I verify Katherine Michelle St Clair, PAC's license?
NPPES lists Texas license number PA06767, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Michelle St Clair, PAC prescribe under Medicare Part D?
In 2024, Katherine Michelle St Clair, PAC had 832 Medicare Part D claims for 352 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherine Michelle St Clair, PAC's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.