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

Katherine Lilja

Individual provider Obesity and Weight Management Nutrition Registered Dietitian · NPI 1477434611

Katherine Lilja is a Registered Dietitian OR Nutrition Professional in Fairfax, Virginia. Graduated from Oakland College of Medicine and Surgery in 2022, 4 years ago. Practices with Inova Health Care Services, a 1,827-clinician group, accepts Medicare assignment and offers telehealth.

Years since qualifying
4
Trained at
Oakland College of Medicine and Surgery
In the registry since
2025

Practice location Address checks out

3580 Joseph Siewick Dr Ste 205
Fairfax, VA 22033-1764
Phone: (703) 620-3211
Show map & directions

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

Specialties & licences

Obesity and Weight Management Nutrition Registered Dietitian (primary) Taxonomy 133VN1201X

Record details

NPI number1477434611
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedSeptember 11, 2025
Last updated in NPPESSeptember 11, 2025
Certification dateSeptember 11, 2025
Mailing address4351 Farm House Ln, Fairfax, VA 22032-1616

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOAKLAND COLLEGE OF MEDICINE AND SURGERY
Graduated 2022 (4 years in practice)
Group practice Inova Health Care Services — 1827 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Fairfax