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

Ashish Atreja, MD

Individual provider Internal Medicine Physician · NPI 1831152883

Ashish Atreja, MD is a Preventive Medicine in Stanford, California. Qualified in 1999, 27 years ago. Practices with Stanford Health Care, a 3,085-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, New York and Ohio.

Years since qualifying
27
Licensed in
CA, NY, OH
In the registry since
2006
Specialties on file
4
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

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5 E 98th St, New York, NY 10029-6501 — (212) 241-4299

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C184563 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35082919 (OH)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 265164 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence C184563 (CA)

Record details

NPI number1831152883
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 10, 2006
Last updated in NPPESJanuary 22, 2026
Certification dateJanuary 22, 2026
Mailing address300 Pasteur Dr, Stanford, CA 94305-2200

Medicare enrollment

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

Medicare specialtyPREVENTIVE MEDICINE
Also practisesGASTROENTEROLOGY, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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