Doctor profile · Federal record

Dr. Mark Nelson, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: Cardiac Surgery) · Surgery Physician · Cumberland, MD

  • NPI 1134111743
  • Accepts Medicare
  • MIPS 85.3 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12502 Willowbrook RD, Suite 470
Cumberland, MD 215026393
(240) 964-8724
fax (240) 964-8735

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
February 24, 2010
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
208G00000X — NUCC code
State license (1)
Maryland #D0056355

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134111743. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
266
Distinct HCPCS
10
Medicare allowed
$123,977
HCPCS Description Services Patients Avg allowed
99204 New patient office or other outpatient visit, 45-59 minutes 52 52 $168
99205 New patient office or other outpatient visit, 60-74 minutes 43 43 $221
35301 Removal of blood clot and portion of chest, neck, or brain artery 38 38 $1,118
33208 Insertion of pacemaker and upper and lower heart chamber electrode 29 29 $520
33228 Removal and replacement of dual lead permanent pacemaker 23 23 $348
99213 Established patient office or other outpatient visit, 20-29 minutes 19 19 $88
33533 Coronary artery bypass using artery graft, 1 graft 18 18 $1,809
99203 New patient office or other outpatient visit, 30-44 minutes 18 18 $109
99214 Established patient office or other outpatient visit, 30-39 minutes 14 14 $129
99215 Established patient office or other outpatient visit, 40-54 minutes 12 12 $180

In context: peer comparison

Among 1 peers in this city , average services per provider: 26. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$42
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ATRICURE, INC. 1 $32.25
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 1 $10.03

By nature of payment

Food and Beverage
$42

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12
Patients
0
Total drug cost
$112
Drug Type Claims Patients Total cost
Cilostazol Generic 12 0 $112

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Nelson's medical specialty?
Dr. Mark Nelson practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Cumberland, MD.
Where does Dr. Mark Nelson practice?
Dr. Mark Nelson practices at 12502 Willowbrook RD, Cumberland, MD 215026393. Office phone: 2409648724.
What is Dr. Mark Nelson's NPI?
Dr. Mark Nelson's National Provider Identifier (NPI) is 1134111743, issued by NPPES.
Does Dr. Mark Nelson accept Medicare assignment?
Yes. Dr. Mark Nelson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Nelson commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99205); Removal of blood clot and portion of chest, neck, or brain artery (HCPCS 35301). Source: CMS Medicare Physician & Other Practitioners file.