Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Ashwin Kulur Nayak

Individual provider Internal Medicine Physician · NPI 1669976882

Ashwin Kulur Nayak practises Internal Medicine in Stanford, California. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2018, 8 years ago. Practices with Stanford Health Care, a 3,085-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
CA
In the registry since
2018

Practice location Address checks out

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-6661
Fax: (650) 498-6205
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A163627 (CA)

Record details

NPI number1669976882
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 21, 2018
Last updated in NPPESApril 22, 2024
Certification dateApril 22, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2018 (8 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients137
Services billed 399 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Stanford Health Care

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3085 clinicians in the practice; 12 are shown here.

Other providers in Stanford