Lewis Kaufman, MD
NPI 1811915630 · Nephrology Physician · New York, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lewis Kaufman, MD is a Nephrology Physician provider in New York, NY (NPI 1811915630).
Provider details
- NPI number
- 1811915630
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 214563 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
240 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 166 | $388 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 74 | $323 |
Typical Medicare-allowed amounts for these services range $323–$388 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcium Acetate | 63 | 14 |
| Sevelamer Carbonate | 56 | 13 |
| Gabapentin | 31 | 11 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 27 | — |
| Carvedilol | 25 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 21 | — |
| Levothyroxine Sodium | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lewis Kaufman's NPI number?
- Lewis Kaufman's National Provider Identifier (NPI) is 1811915630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lewis Kaufman's specialty?
- Lewis Kaufman is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Lewis Kaufman located?
- Lewis Kaufman's practice location on file with NPPES is 5 East 98th Street, New York, NY 10029.
- What is Lewis Kaufman's phone number?
- The practice phone number listed in the NPPES registry for Lewis Kaufman is (212) 241-4060.
- Does Lewis Kaufman accept Medicare?
- Lewis Kaufman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lewis Kaufman's NPI active?
- Yes — Lewis Kaufman's NPI (1811915630) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.