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

Louis I Peng, MD

Individual provider Internal Medicine Physician · NPI 1831121615

Louis I Peng, MD is an Internal Medicine in Battle Ground, Washington. Graduated from Tufts University School of Medicine in 1995, 31 years ago. Practices with Salem Health, a 479-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
31
Trained at
Tufts University School of Medicine
Licensed in
OR
In the registry since
2006
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

18 NW 20th Ave
Battle Ground, WA 98604-4175
Phone: (360) 952-4457
Fax: (360) 828-7409
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 650 N Devine Rd Ste B, Vancouver, WA 98661-6979 — (360) 952-4457

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD20257 (OR)

Record details

NPI number1831121615
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESFebruary 8, 2022
Certification dateFebruary 8, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Salem Health — 479 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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