James O'Callaghan, PA-C
NPI 1548408347 · Medical Physician Assistant · Fleming Island, FL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James O'Callaghan, PA-C is a Medical Physician Assistant provider in Fleming Island, FL (NPI 1548408347).
Provider details
- NPI number
- 1548408347
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA2356 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
63 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 51 | $178 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 12 | $71 |
Typical Medicare-allowed amounts for these services range $71–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-02-02
- Last updated
- 2014-04-18
Frequently asked questions
- What is James O'Callaghan's NPI number?
- James O'Callaghan's National Provider Identifier (NPI) is 1548408347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James O'Callaghan's specialty?
- James O'Callaghan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James O'Callaghan located?
- James O'Callaghan's practice location on file with NPPES is 2188 Autumn Cove Cir, Fleming Island, FL 32003-3229.
- What is James O'Callaghan's phone number?
- The practice phone number listed in the NPPES registry for James O'Callaghan is (904) 613-0991.
- Does James O'Callaghan accept Medicare?
- James O'Callaghan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James O'Callaghan's NPI active?
- Yes — James O'Callaghan's NPI (1548408347) is active in the NPPES registry as of the last update on 2014-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.