Physician Profile
John Willis Marshall, MD
Unclaimed ProfileAbout Dr. Marshall
John Willis Marshall, MD is a healthcare provider in Chattanooga, TN specializing in emergency medicine. John trained at University of Kentucky College of Medicine, graduating in 1993. John is also listed as specializing in emergency medical services. Medicare claims data shows John provided 174 services to 172 patients.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (423) 493-1493
- Email not available
Practice Locations
2333 MCCALLIE AVE
Chattanooga, TN 37404
Procedures Most Often Billed to Medicare
174 services · 172 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
90 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
84 |
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 emergency medicines at this location 7
Same specialty, same street address — most likely the same department or group.
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 emergency medicines in Chattanooga 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at University of Kentucky College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at University of Kentucky College of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Marshall?
Dr. Marshall is an emergency medicine in Chattanooga, TN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
What is Dr. Marshall's address?
Dr. Marshall is listed at 2333 MCCALLIE AVE, Chattanooga, TN 37404. 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 (423) 493-1493. 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 1285676999. 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 Kentucky College of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Marshall have?
Dr. Marshall has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Marshall perform?
According to Medicare billing data, Dr. Marshall the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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.
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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.