Doctor profile · Federal record

Dr. Mary Seegars, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Winston Salem, NC

  • NPI 1184064073
  • Accepts Medicare
  • 13 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
Medical Center Blvd
Winston Salem, NC 271570001
(336) 716-2255
Additional location
1801 Sunset, Internal Medicine
Columbia, SC 29203
(803) 434-4153
fax (803) 434-4160
Mailing address
1801 Sunset, Internal Medicine
Columbia, SC 29203

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
July 29, 2019
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State licenses (2)
North Carolina #2019-01445 · South Carolina #LL35950

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184064073. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
440
Distinct HCPCS
6
Medicare allowed
$45,525
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 302 115 $93
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 46 16 $114
99215 Established patient office or other outpatient visit, 40-54 minutes 36 26 $136
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 22 13 $75
99205 New patient office or other outpatient visit, 60-74 minutes 20 20 $172
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 14 12 $159

In context: peer comparison

Among 23 peers in Winston Salem Hematology & Oncology Physician, average services per provider: 1,007. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$28
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Adaptive Biotechnologies Corporation 1 $27.75

By nature of payment

Food and Beverage
$28

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
138
Patients
30
Total drug cost
$448,703
Drug Type Claims Patients Total cost
Prednisone Generic 27 16 $104
Dexamethasone Generic 20 0 $303
Ondansetron Hcl Generic 17 14 $120
Gleevec (Imatinib Mesylate) Brand 13 0 $141,714
Pantoprazole Sodium Generic 13 0 $266
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 13 0 $48
Venclexta (Venetoclax) Brand 13 0 $130,799
Brukinsa (Zanubrutinib) Brand 11 0 $162,733
Eliquis (Apixaban) Brand 11 0 $12,616

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Seegars's medical specialty?
Dr. Mary Seegars practices Hematology & Oncology Physician in Winston Salem, NC.
Where does Dr. Mary Seegars practice?
Dr. Mary Seegars practices at Medical Center Blvd, Winston Salem, NC 271570001. Office phone: 3367162255.
What is Dr. Mary Seegars's NPI?
Dr. Mary Seegars's National Provider Identifier (NPI) is 1184064073, issued by NPPES.
Does Dr. Mary Seegars accept Medicare assignment?
Yes. Dr. Mary Seegars accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Seegars commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.