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

Dr. Yann Olaf Wester, MD

Individual provider Internal Medicine Physician · NPI 1699261644

Dr. Yann Olaf Wester, MD is an Internal Medicine Physician in Philadelphia, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2018.

Licensed in
PA
In the registry since
2018
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5501 Old York Rd Ste 1
Philadelphia, PA 19141-3098
Phone: (610) 209-6596
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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 MT217017 (PA)

Record details

NPI number1699261644
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 2, 2018
Last updated in NPPESJuly 2, 2018

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