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

Michael David Stein, MD

Individual provider Internal Medicine Physician · NPI 1639157274

Michael David Stein, MD is an Internal Medicine in Campbell, California. Graduated from Stanford University School of Medicine in 1998, 28 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California and Nevada.

Years since qualifying
28
Trained at
Stanford University School of Medicine
Licensed in
CA, NV
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.

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Practice location Address checks out

220 E Hacienda Ave
Campbell, CA 95008-6617
Phone: (408) 871-9440
Fax: (408) 871-6302
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C53525 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 9884 (NV)

Record details

NPI number1639157274
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2006
Last updated in NPPESMarch 7, 2023
Mailing address220 E Hacienda Ave, Campbell, CA 95008-6617

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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