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

John W Witczak, DO

Individual provider Orthopaedic Surgery Physician · NPI 1811913825

John W Witczak, DO is an Orthopaedic Surgery Physician in Mission Viejo, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

26921 Crown Valley Pkwy Ste 201
Mission Viejo, CA 92691-6501
Phone: (949) 348-2250
Fax: (949) 348-8904
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 20A4682 (CA)

Record details

NPI number1811913825
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 14, 2006
Last updated in NPPESJuly 8, 2007

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