Physician Profile
Unclaimed ProfileAbout MARSHALL
John Benjamin Marshall practices internal medicine in Atlanta, GA. According to Medicare claims data, John cared for 3,564 Medicare patients across 6,829 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (404) 256-8500
- Email not available
Practice Locations
6135 BARFIELD RD STE 200
Atlanta, GA 30328
Procedures Most Often Billed to Medicare
6,829 services · 3,564 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
24 |
| Removal of impacted ear wax | Procedure | 69210 |
19 |
| X-ray of chest, 2 views | Imaging | 71046 |
53 |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
49 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
83 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
72 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
2,760 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
546 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
544 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
540 |
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.
Other internists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 16 related providers in 2 groups
Other internists in Atlanta 8
Same specialty, same city.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in GA who bill this service to Medicare most often.
Common questions
What does Dr. Marshall specialize in?
Dr. Marshall is an internist in Atlanta, GA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Where is Dr. Marshall located?
Dr. Marshall is listed at 6135 BARFIELD RD STE 200, Atlanta, GA 30328. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Marshall's phone number?
The number on file is (404) 256-8500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Marshall's NPI number?
Dr. Marshall's National Provider Identifier is 1568701498. 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
How long has Dr. Marshall been practicing?
Dr. Marshall has 13+ years experience. Registered with an NPI since 2013. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Dr. Marshall do most often?
According to Medicare billing data, Dr. Marshall performs procedures including insertion of needle into vein for collection of blood sample and removal of impacted ear wax; reads or performs imaging such as x-ray of chest, 2 views and dxa bone density measurement of hip, pelvis, spine; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marshall confirmed this information?
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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.