Brian O'Halloran, D.O.
NPI 1427085687 · Family Medicine Physician · Port Charlotte, FL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian O'Halloran, D.O. is a Family Medicine Physician provider in Port Charlotte, FL (NPI 1427085687).
Provider details
- NPI number
- 1427085687
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OS9013 (FL)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
321 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 151 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 98 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $88 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 25 | $22 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 18 | $18 |
Typical Medicare-allowed amounts for these services range $6–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 133 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 483 | 155 |
| Levothyroxine Sodium | 411 | 114 |
| Lisinopril | 354 | 103 |
| Amlodipine Besylate | 313 | 96 |
| Rosuvastatin Calcium | 255 | 94 |
| Losartan Potassium | 250 | 84 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (1)
- 543 Tamiami Trl SVenice, FL 34285-2927Phone: (941) 837-8002Fax: (941) 837-8348
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2026-02-10
- Certified
- 2026-02-10
Frequently asked questions
- What is Brian O'Halloran's NPI number?
- Brian O'Halloran's National Provider Identifier (NPI) is 1427085687, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian O'Halloran's specialty?
- Brian O'Halloran is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian O'Halloran located?
- Brian O'Halloran's practice location on file with NPPES is 4265 Tamiami Trl, Port Charlotte, FL 33980-2152.
- What is Brian O'Halloran's phone number?
- The practice phone number listed in the NPPES registry for Brian O'Halloran is (941) 420-8414.
- Does Brian O'Halloran accept Medicare?
- Brian O'Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian O'Halloran's NPI active?
- Yes — Brian O'Halloran's NPI (1427085687) is active in the NPPES registry as of the last update on 2026-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.