Katja A. Von Sitas, PA
Physician Assistant · South Burlington, VT
Katja A. Von Sitas, PA is a physician assistant with a practice address in South Burlington, Vermont, and NPI 1457594020, issued on Apr 13, 2009. Check the license (Vermont 055-00300963, as entered in NPPES) with the Vermont board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katja A. Von Sitas
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 055-00300963 VT
Self-reported in NPPES; status is on the state search - Practice location
- 1775 Williston RD Ste 110, South Burlington, VT 05403
- Phone
- (877) 698-8496
- Enumerated
- Apr 13, 2009
- Record last updated
- Mar 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (802) 862-9637
- Medicare enrollment
- Enrolled (PECOS I20090507000135); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2006
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 321 in Vermont → Look up another NPI →
Also registered at 1775 Williston RD Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kym Boyman, MDObstetrics & Gynecology Physician1871549584
- Cheryl Gibson, MDObstetrics & Gynecology Physician1124073317
- Sarah HerseyAdult Health Nurse Practitioner1346073731
- Kathryn LeopoldObstetrics & Gynecology Physician1912901588
- Veronica PeterkinObstetrics & Gynecology Physician1982282216
- Jeanette RiveraUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1740308808
Verify Katja A. Von Sitas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Vermont board licenses this profession
Search for license 055-00300963Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average physician assistant in 2024
251 Medicare Part D claims for 110 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Estradiol79 claims
- Clobetasol Propionate30 claims
- Fluconazole18 claims
- Betamethasone Dipropionate13 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 one group practice
- Vermont Gynecology PCSouth Burlington, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katja A. Von Sitas among 321 physician assistant records in Vermont
Katja A. Von Sitas, PA is one of 321 physician assistant records with a practice address in Vermont. 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 2009, is newer than 38% of them.
- NPI issued2009 · 38% of these records are older, 60% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2006 · median 2014 among the 210 with a school on file
- Record last updated2021 · 59% 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 Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 physician assistant records list a practice address in South Burlington
They are 28 of the 843 NPPES records with a practice address in South Burlington, and 321 physician assistant records in Vermont.
All 321 in Vermont → Every provider in South Burlington → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Rachel Brodie, PA-CSouth Burlington, VT 054031376728444
- Candis Cousins, PACSouth Burlington, VT 054031831207166
- Grigorios Delaportas, P.A.South Burlington, VT 054031023389418
- Jill Geoffrion, PA-CSouth Burlington, VT 054031508054354
- Tracie Hammond, PA-CSouth Burlington, VT 054031629056817
- Michael Korczykowski, PASouth Burlington, VT 054031770644817
- Kellie Malaney, PACSouth Burlington, VT 054031023170792
- Katharine Margulius, PA-CSouth Burlington, VT 054031982871216
Common questions
What is Katja A. Von Sitas, PA's NPI number?
Katja A. Von Sitas, PA's National Provider Identifier (NPI) is 1457594020, issued on Apr 13, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katja A. Von Sitas, PA located?
The NPPES record lists a practice address at 1775 Williston RD Ste 110, South Burlington, VT, 05403. Phone: (877) 698-8496. Providers update this record themselves, so call before visiting.
How can I verify Katja A. Von Sitas, PA's license?
NPPES lists Vermont license number 055-00300963, as entered by the provider. Search the Vermont board that licenses this profession; the NPPES record confirms identity only.
How much does Katja A. Von Sitas, PA prescribe under Medicare Part D?
In 2024, Katja A. Von Sitas, PA had 251 Medicare Part D claims for 110 beneficiaries; the average among physician assistant prescribers was 830. 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.