Franklin Daniel Diaz, M.D.
NPI 1407999246ActiveIndividual· Internal Medicine, Nephrology· Lawrenceville, GA
Internal Medicine, Nephrology (M.D.) in Lawrenceville, Georgia, trained at University of Puerto Rico School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $125,898 for 921 claims, against $52,519 paid for services in 2024. Calliditas Therapeutics US Inc. reported $32.49 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1407999246 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 14, 2007 |
| Last updated in NPPES | Aug 18, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 032374 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 102 |
|---|---|
| Services billed | 465 across 12 procedure codes |
| Paid by Medicare | $52,519 |
Part D prescriptions in 2024
| Prescriptions (claims) | 921 · 2,166 30-day fills |
|---|---|
| Patients | 148 |
| Total drug cost | $125,898 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Hospital affiliations
- Northside Hospital DuluthDuluth, GA
- Northside Hospital ForsythCumming, GA
- Northside Hospital GwinnettLawrenceville, GA
Other facilities
- Fresenius Kidney Care Central LawrencevilleDialysis facility · Lawrenceville, GA
Industry payments (Open Payments)
- 2025$32.49 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $32.49 | 2 |
What the 2025 payments were for
- Food and Beverage$32.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 nephrologists in Lawrenceville · All nephrologists in Georgia