Nathan E. Chamberlain, M.D.
NPI 1134126246ActiveIndividual· Internal Medicine, Nephrology· Chattanooga, TN
Internal Medicine, Nephrology (M.D.) in Chattanooga, Tennessee, trained at University of Alabama School of Medicine (class of 1996). In 2024 Medicare paid $398,803 for 1,196 patients, and Part D covered 1,057 of their prescriptions, 88% of them generic. Otsuka America Pharmaceutical, Inc. was the largest of 6 companies reporting payments in 2025, $240.81 in all, mostly food and beverage.
Overview
| NPI | 1134126246 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 5, 2005 |
| Last updated in NPPES | May 28, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 29919 | TN |
| Internal Medicine, Nephrology | 207RN0300X | 050505 | GA |
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 - Nephrology (GA); Practitioner - Nephrology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,196 |
|---|---|
| Services billed | 8,210 across 65 procedure codes |
| Paid by Medicare | $398,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,057 · 1,977 30-day fills |
|---|---|
| Patients | 196 |
| Total drug cost | $60,839 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Nephrology |
Medical group
- Yium, Shenouda and Miller PtrshpChattanooga, TN · 51 clinicians
Hospital affiliations
- Commonspirit-Memorial Hospital-North GeorgiaRinggold, GA
- Erlanger Medical CenterChattanooga, TN
- Memorial Healthcare System, IncChattanooga, TN
- Parkridge Medical CenterChattanooga, TN
Other facilities
- Fkc of Missionary RidgeDialysis facility · Chattanooga, TN
Industry payments (Open Payments)
- 2025$240.81 · 12 payments from 6 companies
- 2024$111.78 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $98.61 | 4 |
| Travere Therapeutics, Inc. | $47.13 | 3 |
| Mallinckrodt Hospital Products Inc. | $33.35 | 2 |
| Genzyme Corporation | $27.72 | 1 |
| Calliditas Therapeutics US Inc. | $18.00 | 1 |
What the 2025 payments were for
- Food and Beverage$239.15 · 11 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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