James R Ryba MD Inc
NPI 1245435395 · Rheumatology Physician · Fountain Valley, CA
James R Ryba MD Inc is a Rheumatology Physician organization in Fountain Valley, CA (NPI 1245435395).
Provider details
- NPI number
- 1245435395
- Entity type
- Organization
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- James Ryba, President(714) 549-8905
- License
- C30976 (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
- 2007-06-19
- Last updated
- 2011-06-28
Frequently asked questions
- What is James R Ryba MD Inc's NPI number?
- James R Ryba MD Inc's National Provider Identifier (NPI) is 1245435395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James R Ryba MD Inc?
- James R Ryba MD Inc is classified in the NPPES registry as Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is James R Ryba MD Inc located?
- James R Ryba MD Inc's practice location on file with NPPES is 11100 Warner Ave, Fountain Valley, CA 92708.
- What is James R Ryba MD Inc's phone number?
- The practice phone number listed in the NPPES registry for James R Ryba MD Inc is (714) 549-8905.
- Who is the authorized official for James R Ryba MD Inc?
- The authorized official listed on James R Ryba MD Inc's NPPES record is James Ryba, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James R Ryba MD Inc's NPI active?
- Yes — James R Ryba MD Inc's NPI (1245435395) is active in the NPPES registry as of the last update on 2011-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.