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

Individual provider Nephrology Physician · NPI 1043229453

Mosen Istwani, MD is an Internal Medicine in Riverside, California. Qualified in 1990, 36 years ago. Practices with Riverside Nephrology Physicians Inc, a 3-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2006
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

3595 Van Buren Blvd Ste 203
Riverside, CA 92503-0311
Phone: (951) 343-1978
Fax: (951) 343-1922
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence A64871 (CA)

Record details

NPI number1043229453
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 5, 2006
Last updated in NPPESMarch 21, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesNEPHROLOGY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Riverside Nephrology Physicians Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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