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

Jennifer Margaret Klein, MD

Individual provider Internal Medicine Physician · NPI 1861566184

Jennifer Margaret Klein, MD is an Internal Medicine Physician in Hayward, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

27303 Sleepy Hollow Ave S
Hayward, CA 94545-4203
Phone: (510) 454-1000
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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 A85449 (CA)

Record details

NPI number1861566184
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 20, 2006
Last updated in NPPESDecember 20, 2021

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