Ramsey Nassar, MD
NPI 1003810938 · Nephrology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramsey Nassar, MD is a Nephrology Physician provider in Louisville, KY (NPI 1003810938).
Provider details
- NPI number
- 1003810938
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25741 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,966 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,197 | $73 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 351 | $286 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 286 | $101 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 231 | $15 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 224 | $346 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 115 | 41 |
| Amlodipine Besylate | 95 | 41 |
| Furosemide | 61 | 25 |
| Torsemide | 58 | 23 |
| Potassium Chloride | 53 | 25 |
| Midodrine Hcl | 53 | 18 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 38 | — |
| Atorvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,250 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2007-08-29
Frequently asked questions
- What is Ramsey Nassar's NPI number?
- Ramsey Nassar's National Provider Identifier (NPI) is 1003810938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramsey Nassar's specialty?
- Ramsey Nassar is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ramsey Nassar located?
- Ramsey Nassar's practice location on file with NPPES is 6400 Dutchmans Pkwy, Louisville, KY 40205-3340.
- What is Ramsey Nassar's phone number?
- The practice phone number listed in the NPPES registry for Ramsey Nassar is (502) 587-9660.
- Does Ramsey Nassar accept Medicare?
- Ramsey Nassar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramsey Nassar's NPI active?
- Yes — Ramsey Nassar's NPI (1003810938) is active in the NPPES registry as of the last update on 2007-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.