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

Dr. Mark L Duell Sr., DC

Individual provider Chiropractor · NPI 1841282431

Dr. Mark L Duell Sr., DC is a Chiropractor in Santa Barbara, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

5350 Hollister Ave
Santa Barbara, CA 93111-2326
Phone: (805) 967-3409
Fax: (805) 967-3401
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 16347 (CA)

Record details

NPI number1841282431
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedAugust 18, 2005
Last updated in NPPESJuly 13, 2026
Mailing address5350 Hollister Ave, Santa Barbara, CA 93111-2326

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