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

Mark Patrick Lewis, MD

Individual provider Internal Medicine Physician · NPI 1891985800

Mark Patrick Lewis, MD is an Internal Medicine in Mountain View, California. Graduated from University of Southern California Keck School of Medicine in 2005, 21 years ago. Practices as a sole proprietor and offers telehealth. Licensed in California.

Years since qualifying
21
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2007
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

2204 Grant Rd Ste 105
Mountain View, CA 94040-3877
Phone: (650) 967-8890
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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 A96667 (CA)

Record details

NPI number1891985800
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 26, 2007
Last updated in NPPESDecember 15, 2009
Mailing address2204 Grant Rd Ste 105, Mountain View, CA 94040-3877

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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