Ohara and Associates a Professional Medical Corporation
NPI 1558353144 · Gastroenterology Physician · Irvine, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ohara and Associates a Professional Medical Corporation is a Gastroenterology Physician organization in Irvine, CA (NPI 1558353144).
Provider details
- NPI number
- 1558353144
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jun-Ichi Ohara, Owner(949) 654-8963
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
- Pediatrics Physician208000000X
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2005-08-18
- Last updated
- 2024-06-15
- Certified
- 2024-06-15
Frequently asked questions
- What is Ohara and Associates a Professional Medical Corporation's NPI number?
- Ohara and Associates a Professional Medical Corporation's National Provider Identifier (NPI) is 1558353144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ohara and Associates a Professional Medical Corporation?
- Ohara and Associates a Professional Medical Corporation is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ohara and Associates a Professional Medical Corporation located?
- Ohara and Associates a Professional Medical Corporation's practice location on file with NPPES is 22 Odyssey, Irvine, CA 92618.
- What is Ohara and Associates a Professional Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Ohara and Associates a Professional Medical Corporation is (949) 654-8963.
- Does Ohara and Associates a Professional Medical Corporation accept Medicare?
- Ohara and Associates a Professional Medical Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Ohara and Associates a Professional Medical Corporation?
- The authorized official listed on Ohara and Associates a Professional Medical Corporation's NPPES record is Jun-Ichi Ohara, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ohara and Associates a Professional Medical Corporation's NPI active?
- Yes — Ohara and Associates a Professional Medical Corporation's NPI (1558353144) is active in the NPPES registry as of the last update on 2024-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.