Doctor profile · Federal record
Dr. Karthi Subbannan, M.D
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Johns Creek, GA
- NPI 1154443091
- Accepts Medicare
- MIPS 66.0 / 100 · 2023
- 30 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6300 Hospital Pkwy Ste 300
Johns Creek, GA 300971982
(770) 623-8965
fax (770) 623-4018 - Mailing address
-
1835 Savoy Dr, Suite 300
Atlanta, GA 303411072
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- August 19, 2020
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Georgia #062169
- Medicaid (2)
- GA #738700884C · GA #738700884D
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154443091. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
588
Distinct HCPCS
4
Medicare allowed
$45,080
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 417 | 249 | $66 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 98 | 70 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 37 | 37 | $134 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 36 | 36 | $83 |
In context: peer comparison
Among 3 peers in Johns Creek Hematology & Oncology Physician, average services per provider: 90. This provider delivers 6.5× the peer median.Open Payments
Industry payments received
All-time total
$1,481
Transactions
48
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 10 | $175.58 | |
| Celgene Corporation | 4 | $121.03 | |
| GlaxoSmithKline, LLC. | 4 | $108.47 | |
| Merck Sharp & Dohme LLC | 4 | $97.73 | |
| Novartis Pharmaceuticals Corporation | 3 | $89.13 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $66.34 | |
| Bayer Healthcare Pharmaceuticals INC. | 3 | $60.09 | |
| Regeneron Healthcare Solutions, INC. | 2 | $59.84 | |
| Daiichi Sankyo INC. | 3 | $59.44 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $52.76 | |
| Lilly USA, LLC | 2 | $51.43 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $49.72 | |
| Gilead Sciences, INC. | 2 | $49.13 | |
| Alexion Pharmaceuticals, INC. | 2 | $45.01 | |
| Tempus Ai, INC | 1 | $44.35 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
577
Patients
68
Total drug cost
$902,871
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 154 | 25 | $107,298 |
| Anastrozole | Generic | 69 | 18 | $1,586 |
| Hydroxyurea | Generic | 56 | 14 | $1,626 |
| Xarelto (Rivaroxaban) | Brand | 48 | 11 | $49,253 |
| Letrozole | Generic | 40 | 0 | $905 |
| Tamoxifen Citrate | Generic | 33 | 0 | $1,059 |
| Oxycodone Hcl | Generic | 26 | 0 | $250 |
| Tasigna (Nilotinib Hcl) | Brand | 25 | 0 | $495,963 |
| Jantoven (Warfarin Sodium) | Brand | 24 | 0 | $167 |
| Ondansetron Hcl | Generic | 20 | 0 | $299 |
Hospital affiliations
Frequently asked questions
What is Dr. Karthi Subbannan's medical specialty?
Dr. Karthi Subbannan practices Hematology & Oncology Physician in Johns Creek, GA.
Where does Dr. Karthi Subbannan practice?
Dr. Karthi Subbannan practices at 6300 Hospital Pkwy Ste 300, Johns Creek, GA 300971982. Office phone: 7706238965.
What is Dr. Karthi Subbannan's NPI?
Dr. Karthi Subbannan's National Provider Identifier (NPI) is 1154443091, issued by NPPES.
Does Dr. Karthi Subbannan accept Medicare assignment?
Yes. Dr. Karthi Subbannan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karthi Subbannan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.