John Witczak, DO, PC
NPI 1043303027 · Orthopaedic Surgery Physician · Mission Viejo, CA
John Witczak, DO, PC is a Orthopaedic Surgery Physician organization in Mission Viejo, CA (NPI 1043303027).
Provider details
- NPI number
- 1043303027
- Entity type
- Organization
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Witczak, Ceo President(949) 348-2250
- License
- 20A4682 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2020-08-22
Frequently asked questions
- What is John Witczak, DO, PC's NPI number?
- John Witczak, DO, PC's National Provider Identifier (NPI) is 1043303027, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John Witczak, DO, PC?
- John Witczak, DO, PC is classified in the NPPES registry as Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Witczak, DO, PC located?
- John Witczak, DO, PC's practice location on file with NPPES is 26921 Crown Valley Pkwy, Mission Viejo, CA 92691-6501.
- What is John Witczak, DO, PC's phone number?
- The practice phone number listed in the NPPES registry for John Witczak, DO, PC is (949) 348-2250.
- Who is the authorized official for John Witczak, DO, PC?
- The authorized official listed on John Witczak, DO, PC's NPPES record is John Witczak, Ceo President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John Witczak, DO, PC's NPI active?
- Yes — John Witczak, DO, PC's NPI (1043303027) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.