John Willis Marshall, MD
NPI 1285676999ActiveIndividual· Emergency Medicine· Chattanooga, TN
Emergency Medicine (MD) in Chattanooga, Tennessee, trained at University of Kentucky College of Medicine (class of 1993). 172 Medicare patients in 2024, $19,215 paid; nearly all of their 653 Part D prescriptions were generic (96%). Genentech USA, Inc. reported $24.20 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1285676999 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2006 |
| Last updated in NPPES | Sep 7, 2026 |
| Certified by provider | Sep 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 30691 | TN |
| Emergency Medicine | 207P00000X | 45877 | GA |
| Emergency Medicine, Emergency Medical Services | 207PE0004X | 30691 | TN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (GA); Practitioner - Emergency Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 172 |
|---|---|
| Services billed | 192 across 11 procedure codes |
| Paid by Medicare | $19,215 |
Part D prescriptions in 2024
| Prescriptions (claims) | 653 · 677 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $13,975 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Kentucky College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Family Practice |
Medical groups
- Southeastern Emergency Physicians LLCNewport, TN · 784 clinicians
- Chattanooga Emergency Medicine PLLCFort Oglethorpe, GA · 14 clinicians
Hospital affiliations
- Commonspirit-Memorial Hospital-North GeorgiaRinggold, GA
- Memorial Healthcare System, IncChattanooga, TN
- Parkridge Medical CenterChattanooga, TN
- Sweetwater Hospital AssociationSweetwater, TN
Industry payments (Open Payments)
- 2025$24.20 · 1 payment from 1 company
- 2024$192.03 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $24.20 | 1 |
What the 2025 payments were for
- Food and Beverage$24.20 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 132 emergency medicine physicians in Chattanooga · All emergency medicine physicians in Tennessee