Michael O'Neil, D.O.
NPI 1417185257 · Emergency Medicine Physician · West Columbia, SC
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael O'Neil, D.O. is a Emergency Medicine Physician provider in West Columbia, SC (NPI 1417185257).
Provider details
- NPI number
- 1417185257
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 39082 (SC)
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
16 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
356 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 198 | $164 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 126 | $114 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 21 | $67 |
| Critical Care, First 30-74 Minutes99291 | 11 | $200 |
Typical Medicare-allowed amounts for these services range $67–$200 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 74 | 72 |
| Cephalexin | 31 | 31 |
| Ondansetronbrand: Ondansetron Odt | 25 | 22 |
| Prednisone | 20 | 20 |
| Doxycycline Hyclate | 18 | 18 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 15 | 15 |
| Naproxen | 15 |
Practice location
Mailing address
Additional practice locations (1)
- 1810 US Hwy 321 BypassWinnsboro, SC 29180Phone: (803) 365-8100
Registry dates
- Enumerated
- 2009-07-01
- Last updated
- 2022-08-18
- Certified
- 2022-08-15
Frequently asked questions
- What is Michael O'Neil's NPI number?
- Michael O'Neil's National Provider Identifier (NPI) is 1417185257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael O'Neil's specialty?
- Michael O'Neil is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael O'Neil located?
- Michael O'Neil's practice location on file with NPPES is 2720 Sunset Blvd, West Columbia, SC 29169-4810.
- What is Michael O'Neil's phone number?
- The practice phone number listed in the NPPES registry for Michael O'Neil is (803) 791-2000.
- Does Michael O'Neil accept Medicare?
- Michael O'Neil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael O'Neil's NPI active?
- Yes — Michael O'Neil's NPI (1417185257) is active in the NPPES registry as of the last update on 2022-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.