Doctor profile · Federal record

Dr. Keith Lonergan, MD

Sports Medicine (Orthopaedic Surgery) Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery Physician · Greer, SC

  • NPI 1104962703
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
315 Medical Pkwy, Suite 100
Greer, SC 296502456
(864) 454-7422
fax (864) 797-9701
Mailing address
300 E McBee Ave Fl 4
Greenville, SC 296012842

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
November 10, 2022
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207XX0005X — NUCC code
State license (1)
South Carolina #30396
Medicaid
SC #G51248

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104962703. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,749
Distinct HCPCS
10
Medicare allowed
$187,980
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 588 91 $1
99213 Established patient office or other outpatient visit, 20-29 minutes 307 237 $84
73030 X-ray of shoulder, minimum of 2 views 214 140 $32
20610 Aspiration and/or injection of fluid from large joint 127 94 $64
99214 Established patient office or other outpatient visit, 30-39 minutes 118 106 $118
73564 X-ray of knee, 4 or more views 83 64 $43
73562 X-ray of knee, 3 views 67 50 $37
23472 Prosthetic repair of shoulder joint, total shoulder 32 32 $1,321
27447 Replacement of knee joint, both sides of knee 27 27 $1,201
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope 24 24 $161

In context: peer comparison

Among 2 peers in Greer Sports Medicine (Orthopaedic Surgery) Physician, average services per provider: 154. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,299
Transactions
14
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Peerless Surgical INC. 5 $463.08
Anika Therapeutics, INC. 2 $288.26
Exactech, INC. 1 $189.58
Medacta USA, INC. 1 $143.56
Zimmer Biomet Holdings, INC. 2 $112.01
Stryker Corporation 1 $55.81
Smith+Nephew, INC. 2 $46.99

By nature of payment

Food and Beverage
$1,299

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
201
Patients
146
Total drug cost
$2,029
Drug Type Claims Patients Total cost
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 133 110 $1,130
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 23 16 $207
Tramadol Hcl Generic 23 20 $79
Amoxicillin Generic 11 0 $14
Ceftriaxone (Ceftriaxone Sodium) Brand 11 0 $598

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Keith Lonergan's medical specialty?
Dr. Keith Lonergan practices Sports Medicine (Orthopaedic Surgery) Physician in Greer, SC.
Where does Dr. Keith Lonergan practice?
Dr. Keith Lonergan practices at 315 Medical Pkwy, Greer, SC 296502456. Office phone: 8644547422.
What is Dr. Keith Lonergan's NPI?
Dr. Keith Lonergan's National Provider Identifier (NPI) is 1104962703, issued by NPPES.
Does Dr. Keith Lonergan accept Medicare assignment?
Yes. Dr. Keith Lonergan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Lonergan commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99213); X-ray of shoulder, minimum of 2 views (HCPCS 73030). Source: CMS Medicare Physician & Other Practitioners file.