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

Dr. Daniel Clayton McMahon, MD

Individual provider Emergency Medicine Physician · NPI 1700181401

Dr. Daniel Clayton McMahon, MD is an Emergency Medicine Physician in Napa, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2011
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

4590 Dry Creek Rd
Napa, CA 94558-9596
Phone: (707) 252-1239
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 C33497 (CA)

Record details

NPI number1700181401
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 11, 2011
Last updated in NPPESJanuary 11, 2011

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