Doctor profile · Federal record

Dr. Michael O'Neil, D.O.

Emergency Medicine Physician (CMS: Emergency Medicine) · West Columbia, SC

  • NPI 1417185257
  • Accepts Medicare
  • 17 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2720 Sunset Blvd
West Columbia, SC 291694810
(803) 791-2000
Additional location
1810 US Hwy 321 Bypass
Winnsboro, SC 29180
(803) 365-8100
Mailing address
Po Box 896239
Charlotte, NC 282896239

Credentials & registration

NPPES · NUCC
NPI registered
July 2009 — 17 yrs on file
Profile last updated
August 18, 2022
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
South Carolina #39082

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417185257. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
365
Distinct HCPCS
4
Medicare allowed
$50,890
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 195 172 $166
99284 Emergency department visit with moderate level of medical decision making 122 118 $113
99283 Emergency department visit with low level of medical decision making 37 36 $67
99291 Critical care, first 30-74 minutes 11 11 $203

In context: peer comparison

Among 23 peers in this city , average services per provider: 147. This provider delivers 2.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
370
Patients
356
Total drug cost
$2,295
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 92 88 $455
Cephalexin Generic 45 45 $275
Prednisone Generic 45 41 $80
Cyclobenzaprine Hcl Generic 33 33 $122
Doxycycline Hyclate Generic 25 25 $285
Naproxen Generic 25 25 $99
Ondansetron Odt (Ondansetron) Brand 23 23 $187
Azithromycin Generic 16 15 $55
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 15 12 $400
Dicyclomine Hcl Generic 14 14 $64

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael O'Neil's medical specialty?
Dr. Michael O'Neil practices Emergency Medicine Physician in West Columbia, SC.
Where does Dr. Michael O'Neil practice?
Dr. Michael O'Neil practices at 2720 Sunset Blvd, West Columbia, SC 291694810. Office phone: 8037912000.
What is Dr. Michael O'Neil's NPI?
Dr. Michael O'Neil's National Provider Identifier (NPI) is 1417185257, issued by NPPES.
Does Dr. Michael O'Neil accept Medicare assignment?
Yes. Dr. Michael O'Neil accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael O'Neil commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.