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
Show map & directions

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

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