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

Steven W Rittenberg, MD

Individual provider Adolescent Medicine (Internal Medicine) Physician · NPI 1851455893

Steven W Rittenberg, MD is a Family Practice in Bellevue, Washington. Qualified in 1993, 33 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
33
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

12917 SE 38th St Ste 100
Bellevue, WA 98006-1349
Phone: (425) 641-4000
Fax: (206) 320-5840
Show map & directions

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

Specialties & licences

Adolescent Medicine (Internal Medicine) Physician (primary) Taxonomy 207RA0000X · Licence MD00033053 (WA)

Record details

NPI number1851455893
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 21, 2006
Last updated in NPPESSeptember 28, 2023
Mailing addressPo Box 34472, Seattle, WA 98124-1472

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount