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

Dr. Aruna Krishnan Jayaraman, MD, MHS

Individual provider Hepatology Physician · NPI 1306817903

Dr. Aruna Krishnan Jayaraman, MD, MHS practises Gastroenterology in Santa Rosa, California. Graduated from Jefferson Medical College of Thomas Jefferson University in 1999, 27 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3975 Old Redwood Hwy
Santa Rosa, CA 95403-1719
Phone: (707) 228-8803
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 571 Matheson St, Healdsburg, CA 95448-4236 — (707) 228-8803

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A90690 (CA)
Hepatology Physician Taxonomy 207RI0008X · Licence A90690 (CA)

Record details

NPI number1306817903
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MHS
Sole proprietorYes
NPI enumeratedJanuary 31, 2006
Last updated in NPPESMay 5, 2024
Certification dateMay 5, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1999 (27 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times
Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients104
Services billed 163 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Sutter Bay Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3762 clinicians in the practice; 12 are shown here.