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

Dr. Sonja Franziska Knittel-Hliddal, MD

Individual provider Internal Medicine Physician · NPI 1356846109

Dr. Sonja Franziska Knittel-Hliddal, MD is a Critical Care (Intensivists) in Riverside, California. Qualified in 2014, 12 years ago. Practices with Faculty Physicians and Surgeons of Llusm, a 1,308-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2018
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4234 Riverwalk Pkwy Ste 230
Riverside, CA 92505-3312
Phone: (856) 641-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence A184723 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A184723 (CA)

Record details

NPI number1356846109
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 26, 2018
Last updated in NPPESSeptember 26, 2023
Certification dateSeptember 26, 2023

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Faculty Physicians And Surgeons Of Llusm — 1308 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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