Doctor profile · Federal record

Dr. Mark Dyson, MD

Emergency Medicine Physician · Greenville, NC

  • NPI 1639666480
  • 8 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2100 Stantonsburg RD
Greenville, NC 278342818
(919) 625-5351

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
September 30, 2021
Specialty taxonomy
207P00000X — NUCC code
State license (1)
North Carolina #2021-02669

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639666480. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
294
Distinct HCPCS
4
Medicare allowed
$42,383
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 115 112 $161
99284 Emergency department visit with moderate level of medical decision making 98 94 $113
99291 Critical care, first 30-74 minutes 54 54 $203
99283 Emergency department visit with low level of medical decision making 27 26 $69

In context: peer comparison

Among 52 peers in Greenville Emergency Medicine Physician, average services per provider: 91. This provider delivers 3.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
17
Patients
17
Total drug cost
$105
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 17 17 $105

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Dyson's medical specialty?
Dr. Mark Dyson practices Emergency Medicine Physician in Greenville, NC.
Where does Dr. Mark Dyson practice?
Dr. Mark Dyson practices at 2100 Stantonsburg RD, Greenville, NC 278342818. Office phone: 9196255351.
What is Dr. Mark Dyson's NPI?
Dr. Mark Dyson's National Provider Identifier (NPI) is 1639666480, issued by NPPES.
What procedures does Dr. Mark Dyson 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.