Ryan O'Connell, M.D.
NPI 1609288794 · Anatomic Pathology & Clinical Pathology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1609288794
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 207ZP0102X (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
931 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 390 | $29 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 194 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 102 | $36 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 66 | $84 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 64 | $63 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 55 | $12 |
Practice location
Mailing address
Additional practice locations (2)
- 560 W Main St Ste C149Alhambra, CA 91801-3374Phone: (714) 456-2986
- 560 W Main St Ste C149Alhambra, CA 91801-3374Phone: (714) 456-2986
Registry dates
- Enumerated
- 2014-05-23
- Last updated
- 2025-04-26
- Certified
- 2025-04-26
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.