DR. KARTHI SUBBANNAN M.D
NPI 1154443091
Internal Medicine - Hematology & Oncology in Johns Creek, GA

Active since April 04, 2007PECOS EnrolledAccepts Medicare Assignment
68.38/100
CMS Quality Rating
6300 HOSPITAL PKWY STE 300, JOHNS CREEK, GA 30097(770) 623-8965(770) 623-4018 Get Directions Write a Review

NPPES record last updated: August 19, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 19, 2020, May 11, 2020 (2 updates tracked since 2020).

About Dr. Karthi Subbannan M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KARTHI SUBBANNAN M.D (NPI 1154443091) is an individual hematology & oncology provider in Johns Creek, Georgia, licensed in Georgia (062169) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Northside Hospital Forsyth, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1154443091
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameDR. KARTHI SUBBANNANCredential: M.D
Location Address6300 HOSPITAL PKWY STE 300Johns Creek, GA 30097-1982
Mailing Address1835 Savoy Dr, Suite 300Atlanta, GA 30341-1072 · (770) 623-8965 · Fax (770) 623-4018
Fax(770) 623-4018
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateApril 4, 2007
Last NPPES UpdateAugust 19, 20202 updates tracked since enumeration
NPPES CertifiedAugust 19, 2020
NPI 1154443091 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in GA · 062169
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
6300 HOSPITAL PKWY STE 300, Johns Creek, GA 30097

Other Identifiers 2

Medicaid738700884CGA
Medicaid738700884DGA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Karthi Subbannan M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567519606
PECOS Enrollment IDI20090407000541
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
405 services232 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
139 services85 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
29 services29 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
29 services29 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
16 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital Forsyth

Acute Care Hospitals · Cumming, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110005
Location1200 Northside Forsyth DriveCumming, GA 30041 · Forsyth County
Birthing friendly

Northside Hospital Gwinnett

Acute Care Hospitals · Lawrenceville, GA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number110087
Location1000 Medical Center BoulevardLawrenceville, GA 30046 · Gwinnett County
Birthing friendly

Northside Hospital

Acute Care Hospitals · Atlanta, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110161
Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County
Birthing friendly

Emory Johns Creek Hospital

Acute Care Hospitals · Johns Creek, GA
3/5 CMS rating
OwnershipProprietary
CMS Certification Number110230
Location6325 Hospital ParkwayJohns Creek, GA 30097 · Gwinnett County
Emergency services Birthing friendly

Northside Hospital Duluth

Acute Care Hospitals · Duluth, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110252
Location3620 Howell Ferry RoadDuluth, GA 30096 · Gwinnett County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30097 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$172.43 typical visit price
range $56.84 – $172.43
Typical copayment $43.10 (range $14.21 – $43.10)
Most-billed visit code 99205
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

68.38/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.82
Improvement Activities40
Cost40.24

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Hematology & Oncology)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner (Family)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner (Family)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karthi Subbannan's NPI number?

The NPI number for Karthi Subbannan is 1154443091. It was assigned to this individual provider in the NPPES registry on April 4, 2007.

Where is Karthi Subbannan located?

Karthi Subbannan practices at 6300 Hospital Pkwy Ste 300, Johns Creek, GA 30097. The listed phone number is (770) 623-8965.

What is Karthi Subbannan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Karthi Subbannan enrolled in Medicare?

Yes. Karthi Subbannan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Karthi Subbannan accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Karthi Subbannan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Karthi Subbannan affiliated with any hospitals?

According to CMS data, Karthi Subbannan is affiliated with Northside Hospital Forsyth, Northside Hospital Gwinnett, Northside Hospital, Emory Johns Creek Hospital and Northside Hospital Duluth.

When was this NPI record last updated?

The NPPES record for Karthi Subbannan was last updated on August 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.