Nicholas Byrne, MD
NPI 1710191325 · Anatomic Pathology & Clinical Pathology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Byrne, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Walnut Creek, CA (NPI 1710191325).
Provider details
- NPI number
- 1710191325
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A86857 (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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,974 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,008 | $42 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 675 | $91 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 646 | $31 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 252 | $39 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 182 | $92 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 175 | $31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2007-08-06
Frequently asked questions
- What is Nicholas Byrne's NPI number?
- Nicholas Byrne's National Provider Identifier (NPI) is 1710191325, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Byrne's specialty?
- Nicholas Byrne is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Byrne located?
- Nicholas Byrne's practice location on file with NPPES is 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598-3122.
- What is Nicholas Byrne's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Byrne is (925) 927-5390.
- Does Nicholas Byrne accept Medicare?
- Nicholas Byrne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Byrne's NPI active?
- Yes — Nicholas Byrne's NPI (1710191325) is active in the NPPES registry as of the last update on 2007-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.