Doctor profile · Federal record

Dr. Joanna Grabska, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Greenville, SC

  • NPI 1144546557
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
104 Innovation Dr. Ste. 2000, Bon Secours Hematology & Oncology
Greenville, SC 296075253
(864) 603-6300
fax (864) 603-6160
Mailing address
Po Box 743294
Atlanta, GA 303743294

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
July 21, 2022
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
South Carolina #40623

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144546557. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
898
Distinct HCPCS
10
Medicare allowed
$115,768
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 337 224 $122
99215 Established patient office or other outpatient visit, 40-54 minutes 196 114 $170
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 75 34 $76
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 59 28 $115
99213 Established patient office or other outpatient visit, 20-29 minutes 58 52 $86
99205 New patient office or other outpatient visit, 60-74 minutes 36 36 $210
99204 New patient office or other outpatient visit, 45-59 minutes 30 30 $159
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 30 29 $126
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 28 26 $168
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 20 16 $31

In context: peer comparison

Among 11 peers in Greenville Hematology & Oncology Physician, average services per provider: 480. This provider delivers 1.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
795
Patients
234
Total drug cost
$638,401
Drug Type Claims Patients Total cost
Letrozole Generic 266 89 $8,618
Anastrozole Generic 170 61 $4,059
Tamoxifen Citrate Generic 52 22 $2,303
Xarelto (Rivaroxaban) Brand 42 0 $33,475
Ibrance (Palbociclib) Brand 38 0 $568,380
Ondansetron Hcl Generic 30 16 $353
Potassium Chloride Generic 28 21 $456
Pantoprazole Sodium Generic 27 13 $204
Mirtazapine Generic 25 0 $1,315
Eliquis (Apixaban) Brand 24 0 $14,448

Frequently asked questions

Auto-generated from federal data
What is Dr. Joanna Grabska's medical specialty?
Dr. Joanna Grabska practices Hematology & Oncology Physician in Greenville, SC.
Where does Dr. Joanna Grabska practice?
Dr. Joanna Grabska practices at 104 Innovation Dr. Ste. 2000, Greenville, SC 296075253. Office phone: 8646036300.
What is Dr. Joanna Grabska's NPI?
Dr. Joanna Grabska's National Provider Identifier (NPI) is 1144546557, issued by NPPES.
Does Dr. Joanna Grabska accept Medicare assignment?
Yes. Dr. Joanna Grabska accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joanna Grabska commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.