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Dr. Karthi Subbannan, M.D

Hematology & Oncology Physician in Johns Creek, GA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1154443091

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Registry record

Entity type Individual (Type 1)
Name Dr. Karthi Subbannan
Credential M.D
Sex Female
Practice address 6300 Hospital Pkwy Ste 300, Johns Creek, GA, 30097
Phone (770) 623-8965
Fax (770) 623-4018
Enumeration date Apr 4, 2007
Last updated in NPPES Aug 19, 2020

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 062169 (GA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
738700884C Medicaid GA -
738700884D Medicaid GA -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1154443091 active?
Yes, as of the latest NPPES snapshot, NPI 1154443091 is active (record last updated 2020-08-19).
How do I verify Karthi Subbannan's NPI record?
Cross-check NPI 1154443091 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-19.