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

Individual provider Pediatrics Physician · NPI 1003812744

Dr. Mark Gregory Ellis, MD is a Pediatrics Physician in Eureka, California. Works from 3 locations. Licensed in California.

Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2200 Tydd St
Eureka, CA 95501-1284
Phone: (707) 269-7051
Fax: (707) 269-7054
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2800 Harris St, Eureka, CA 95503-4809 — (707) 445-8416
  • 2800 Harris St, Eureka, CA 95503-4809 — (707) 445-8416

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G65432 (CA)

Record details

NPI number1003812744
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESMarch 17, 2018
Mailing address670 9th St Ste 203, Arcata, CA 95521-6249

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