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

Sumner Seibert, MD

Individual provider Orthopaedic Surgery Physician · NPI 1255350534

Sumner Seibert, MD is an Orthopaedic Surgery Physician in Antioch, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
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

3903 Lone Tree Way Ste 305
Antioch, CA 94509-6249
Phone: (925) 754-5254
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence G16830 (CA)

Record details

NPI number1255350534
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 18, 2006
Last updated in NPPESJuly 8, 2007
Mailing address3903 Lone Tree Way, Suite 305, Antioch, CA 94509-6249

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