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

Dr. William Montague Downs, MD

Individual provider Emergency Medicine Physician · NPI 1164527537

Dr. William Montague Downs, MD is an Emergency Medicine Physician in Lihue, Hawaii. Licensed in Hawaii. Registered with an NPI since 2006.

Licensed in
HI
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

4457 Pahee St
Lihue, HI 96766-2032
Phone: (808) 245-7277
Fax: (808) 245-5006
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD-2101 (HI)

Record details

NPI number1164527537
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 13, 2006
Last updated in NPPESFebruary 23, 2026
Certification dateFebruary 23, 2026
Mailing address4457 Pahee St Ste B, Lihue, HI 96766-2032

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