Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mrs. Katherine B Sirianni, PA-C

Individual provider Physician Assistant · NPI 1316254428

Mrs. Katherine B Sirianni, PA-C is a Physician Assistant in Germantown, Maryland. Licensed in Maryland. Registered with an NPI since 2010.

Licensed in
MD
In the registry since
2010
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

19851 Observation Dr Ste 250
Germantown, MD 20876-4151
Phone: (301) 972-0400
Fax: (301) 916-1453
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence C0004319 (MD)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1316254428
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedSeptember 10, 2010
Last updated in NPPESDecember 15, 2025
Certification dateDecember 15, 2025

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