GREGORY CHRISTIAN ROBERTSON M.D.
NPI 1598776809
Internal Medicine - Interventional Cardiology in Johns Creek, GA

Q: What is Gregory Robertson's NPI number?

The NPI number for Gregory Robertson is 1598776809. It was assigned to this individual provider in the NPPES registry on August 11, 2006.

Q: What is Gregory Robertson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Robertson was last updated on September 9, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 11, 2006PECOS EnrolledAccepts Medicare Assignment

92.26/100

CMS Quality Rating

6335 HOSPITAL PKWY, JOHNS CREEK, GA 30097(404) 778-8240(404) 778-8241 Get Directions Write a Review

NPPES record last updated: September 9, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Gregory Christian Robertson M.d. NPPES

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

GREGORY CHRISTIAN ROBERTSON M.D. (NPI 1598776809) is an individual interventional cardiology provider in Johns Creek, Georgia, licensed in Georgia (52203) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Emory University Hospital, and is a graduate of University Of Alabama School Of Medicine (1980).

NPPES Registry Identity

NPI1598776809

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameGREGORY CHRISTIAN ROBERTSONCredential: M.D.

Location Address6335 HOSPITAL PKWYJohns Creek, GA 30097-1549

Mailing Address6335 Hospital Pkwy Ste 110Johns Creek, GA 30097-1550 · (404) 778-8240 · Fax (404) 778-8241

Phone(404) 778-8240

Fax(404) 778-8241

Sole ProprietorNo

Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1980

Enumeration DateAugust 11, 2006

Last NPPES UpdateSeptember 9, 2015

✔ NPI 1598776809 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in GA · 52203

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 052203 (GA)

6335 HOSPITAL PKWY, Johns Creek, GA 30097

Open in Google Maps ↗

Other Identifiers 1

Medicare UPINA53446

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.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

Gregory Christian Robertson 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 ID6305941550

PECOS Enrollment IDI20070417000096

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 44

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

663 services586 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

375 services360 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.

219 services175 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

184 services182 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

183 services155 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

130 services130 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

111 services110 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

111 services102 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

110 services110 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

110 services73 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

107 services107 patients

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.

104 services93 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

102 services102 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

99 services95 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

86 services72 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

71 services71 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

66 services65 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

51 services47 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

50 services48 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

49 services43 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

49 services45 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

45 services44 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.

39 services37 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

37 services31 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

31 services27 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

31 services30 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

27 services26 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

27 services27 patients

Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist 93459

This procedure involves placing a tube into your left lower heart chamber, coronary artery, and bypass graft. It's done for diagnostic purposes and is carefully reviewed by a radiologist. This helps determine the health of your heart and arteries, aiding in future treatment plans.

26 services26 patients

Heart muscle strain imaging 93356

24 services24 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

23 services23 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

22 services21 patients

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

22 services22 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

21 services21 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

20 services20 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

19 services18 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

18 services18 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

18 services18 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

15 services15 patients

Complete ultrasound of abdomen and pelvis artery and vein blood flow 93975

This procedure uses sound waves to create images of your abdomen and pelvis, specifically focusing on the arteries and veins. It helps in assessing the blood flow and detecting any abnormalities, ensuring your overall well-being.

14 services14 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

12 services12 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

12 services12 patients

Electrocardiogram (ecg) 2-day continuous 93225

An Electrocardiogram (ECG) 2-day continuous is a non-invasive test that records the electrical activity of your heart over 48 hours. It helps to detect irregular heart rhythms, heart disease, or other cardiac conditions. You wear a portable device that records heart activity as you go about your daily activities.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Emory University Hospital

Acute Care Hospitals · Atlanta, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110010

Location1364 Clifton Road, NEAtlanta, GA 30322 · De Kalb County

Emergency services

Union General Hospital

Acute Care Hospitals · Blairsville, GA

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110051

Location35 Hospital RoadBlairsville, GA 30512 · Union County

Emergency services Birthing friendly

Emory University Hospital Midtown

Acute Care Hospitals · Atlanta, GA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110078

Location550 Peachtree Street, NEAtlanta, GA 30308 · Fulton County

Emergency services Birthing friendly

Saint Joseph's Hospital Of Atlanta, Inc

Acute Care Hospitals · Atlanta, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110082

Location5665 Peachtree Dunwoody RoadAtlanta, GA 30342 · Fulton County

Emergency services

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

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

$130.64 typical visit price

range $56.84 – $172.43

Typical copayment $32.66 (range $14.21 – $43.10)

Most-billed visit code 99204

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.

92.26/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

73.83

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$15.77 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$78.83 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Leave this field empty

Other Providers at the Same Location NPPES 20

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

JACQUELINE YOARS CRNA

Nurse Anesthetist, Certified Registered

6335 HOSPITAL PKWY, SUITE 304
JOHNS CREEK, GA 30097

Gwinnett County (404) 778-8317

LORRI R. SOUTH CRNA

Nurse Anesthetist, Certified Registered

6335 HOSPITAL PKWY, SUITE 111
JOHNS CREEK, GA 30097

Gwinnett County (770) 712-4616

EMORY JOHNS CREEK OBSTETRICS AND GYNECOLOGY, LLC

Obstetrics & Gynecology

6335 HOSPITAL PKWY, SUITE 203
JOHNS CREEK, GA 30097

Gwinnett County (678) 985-8001

MRS. JULIE A LEKA CNM

Advanced Practice Midwife

6335 HOSPITAL PKWY
JOHNS CREEK, GA 30097

Gwinnett County (770) 476-0410

COUNTESS DEAN

Physician Assistant

6335 HOSPITAL PKWY
DULUTH, GA 30097

Gwinnett County (334) 676-9770

MONA M KOBERNUS CRNA

Nurse Anesthetist, Certified Registered

6335 HOSPITAL PKWY
JOHNS CREEK, GA 30097

Gwinnett County (404) 778-8311

AMANDA M YOTHER ATC

Specialist/Technologist (Athletic Trainer)

6335 HOSPITAL PKWY
JOHNS CREEK, GA 30097

Gwinnett County (404) 778-3350

DR. DEBORAH ANN KOWALCHUK M.D.

Orthopaedic Surgery

6335 HOSPITAL PKWY, SUITE 200
JOHNS CREEK, GA 30097

Gwinnett County (404) 575-4500

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 Gregory Robertson's NPI number?

The NPI number for Gregory Robertson is 1598776809. It was assigned to this individual provider in the NPPES registry on August 11, 2006.

Where is Gregory Robertson located?

Gregory Robertson practices at 6335 Hospital Pkwy, Johns Creek, GA 30097. The listed phone number is (404) 778-8240.

What is Gregory Robertson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Gregory Robertson enrolled in Medicare?

Yes. Gregory Robertson 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 Gregory Robertson accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Gregory Robertson 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 Gregory Robertson affiliated with any hospitals?

According to CMS data, Gregory Robertson is affiliated with Emory University Hospital, Union General Hospital, Emory University Hospital Midtown, Saint Joseph's Hospital Of Atlanta, Inc and Emory Johns Creek Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Robertson was last updated on September 9, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.