Physician Profile
Unclaimed ProfileAbout MARSHALL
Based in Atlanta, GA, John Jeffrey Marshall, MD is listed in the NPI registry under interventional cardiology. John graduated from University of Florida College of Medicine in 1982. John is also listed as specialising in cardiovascular disease.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Marshall?
Dr. Marshall is an interventional cardiology in Atlanta, GA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERVENTIONAL CARDIOLOGY”.
NPI registry
What is Dr. Marshall's address?
Dr. Marshall is listed at 1110 W PEACHTREE ST NW STE 920, Atlanta, GA 30309. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Marshall?
The number on file is (404) 962-6000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Marshall?
Dr. Marshall's National Provider Identifier is 1184676413. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Marshall train?
Dr. Marshall attended University of Florida College of Medicine, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Marshall have?
Dr. Marshall has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Marshall perform?
According to Medicare billing data, Dr. Marshall provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and electrocardiogram up to 30 days continuous with review and report by health care professional, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Marshall's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marshall. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (404) 962-6000
- Email not available
Practice Locations
1110 W PEACHTREE ST NW STE 920
Atlanta, GA 30309
Procedures Most Often Billed to Medicare
693 services · 583 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
221 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | Treatment | 93228 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
172 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
135 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
69 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
47 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
38 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other interventional cardiology specialists in Atlanta 8
Same specialty, same city.
Trained at University of Florida College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1982 at University of Florida College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in GA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.