Doctor profile · Federal record

Dr. Marion McMillan, MD

Interventional Pain Medicine Physician (CMS: Anesthesiology) · Neurological Surgery Physician · Surgery Physician · Anesthesiology Physician · Seneca, SC

  • NPI 1427037167
  • Accepts Medicare
  • 46 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
457 E by Pass 123
Seneca, SC 29678
(864) 886-9888
fax (864) 886-9777
Mailing address
457 E Bypass 123
Seneca, SC 29678

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
March 29, 2012
Year of graduation
1980 — 46 yrs since
Specialty taxonomy
208VP0014X — NUCC code
State license (1)
South Carolina #15608
Medicaid
SC #156084

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427037167. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
193
Distinct HCPCS
8
Medicare allowed
$38,474
HCPCS Description Services Patients Avg allowed
99204 New patient office or other outpatient visit, 45-59 minutes 38 38 $156
99214 Established patient office or other outpatient visit, 30-39 minutes 34 29 $120
64636 Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint 32 22 $56
99213 Established patient office or other outpatient visit, 20-29 minutes 24 19 $85
64635 Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint 21 21 $103
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 20 20 $1,013
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level 12 12 $117
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level 12 12 $66

In context: peer comparison

Among 1 peers in this city , average services per provider: 24. This provider delivers 8.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
66
Patients
33
Total drug cost
$1,066
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 27 21 $267
Gabapentin Generic 16 0 $172
Methylprednisolone Generic 12 12 $84
Oxycodone Hcl Generic 11 0 $544

Frequently asked questions

Auto-generated from federal data
What is Dr. Marion McMillan's medical specialty?
Dr. Marion McMillan practices Interventional Pain Medicine Physician in Seneca, SC.
Where does Dr. Marion McMillan practice?
Dr. Marion McMillan practices at 457 E by Pass 123, Seneca, SC 29678. Office phone: 8648869888.
What is Dr. Marion McMillan's NPI?
Dr. Marion McMillan's National Provider Identifier (NPI) is 1427037167, issued by NPPES.
Does Dr. Marion McMillan accept Medicare assignment?
Yes. Dr. Marion McMillan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marion McMillan commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214); Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint (HCPCS 64636). Source: CMS Medicare Physician & Other Practitioners file.