OrganizationActive
Jay K Harness MD a Medical Corporation
NPI 1205838257 · Surgery Physician · Orange, CA
Jay K Harness MD a Medical Corporation is a Surgery Physician organization in Orange, CA (NPI 1205838257).
Provider details
- NPI number
- 1205838257
- Entity type
- Organization
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jay Harness, Owner(714) 744-8601
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1000 W La Veta Ave
Orange, CA 92868-4304
Phone: (714) 744-8601
Fax: (714) 744-8622
Street-level locationGet directions
Mailing address
Po Box 5942
Orange, CA 92863-5942
Registry dates
- Enumerated
- 2005-08-10
- Last updated
- 2009-02-19
Frequently asked questions
- What is Jay K Harness MD a Medical Corporation's NPI number?
- Jay K Harness MD a Medical Corporation's National Provider Identifier (NPI) is 1205838257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jay K Harness MD a Medical Corporation?
- Jay K Harness MD a Medical Corporation is classified in the NPPES registry as Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Jay K Harness MD a Medical Corporation located?
- Jay K Harness MD a Medical Corporation's practice location on file with NPPES is 1000 W La Veta Ave, Orange, CA 92868-4304.
- What is Jay K Harness MD a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Jay K Harness MD a Medical Corporation is (714) 744-8601.
- Who is the authorized official for Jay K Harness MD a Medical Corporation?
- The authorized official listed on Jay K Harness MD a Medical Corporation's NPPES record is Jay Harness, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jay K Harness MD a Medical Corporation's NPI active?
- Yes — Jay K Harness MD a Medical Corporation's NPI (1205838257) is active in the NPPES registry as of the last update on 2009-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.