Individual provider · Type 1 NPI

William E. Toppen, MD

Internal Medicine Physician · San Diego, CA

NPI number 1215399407 Active

Practice location

200 W Arbor Dr
San Diego, CA 92103-9000

Call (800) 926-8273 Map

Mailing address

File 57326
Los Angeles, CA 90074-7326

Other practice locations

  • 477 N El Camino Real Ste D204, Encinitas, CA 92024-1370 · (800) 926-8273
  • 9300 Campus Point Dr, La Jolla, CA 92037-1300 · (800) 926-8273
  • 6655 Alvarado Rd, San Diego, CA 92120-5208 · (800) 926-5273

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XA155816 (CA)
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician 207PE0005XA155816 (CA)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1215399407

William E. Toppen, MD's National Provider Identifier is 1215399407, issued on Mar 25, 2016. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in San Diego, CA. The record was last updated on Sep 10, 2026.