Stephen Weiss, M.D.
NPI 1326265307 · Orthopaedic Surgery Physician · Santa Ana, CA
Enrolled with Medicare as Order and Referring Only - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Weiss, M.D. is a Orthopaedic Surgery Physician provider in Santa Ana, CA (NPI 1326265307).
Provider details
- NPI number
- 1326265307
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G35427 (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
- 2007-04-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Weiss's NPI number?
- Stephen Weiss's National Provider Identifier (NPI) is 1326265307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Weiss's specialty?
- Stephen Weiss is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Weiss located?
- Stephen Weiss's practice location on file with NPPES is 999 N Tustin Ave, Santa Ana, CA 92705-3528.
- What is Stephen Weiss's phone number?
- The practice phone number listed in the NPPES registry for Stephen Weiss is (714) 542-9339.
- Does Stephen Weiss accept Medicare?
- Stephen Weiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Weiss's NPI active?
- Yes — Stephen Weiss's NPI (1326265307) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.