Clarence Waltrous, M.D.
NPI 1942214580 · Nephrology Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clarence Waltrous, M.D. is a Nephrology Physician provider in Brooklyn, NY (NPI 1942214580).
Provider details
- NPI number
- 1942214580
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 134427 (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
47 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 | 47 | $390 |
Typical Medicare-allowed amounts for these services range $390–$390 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2015-07-15
Frequently asked questions
- What is Clarence Waltrous's NPI number?
- Clarence Waltrous's National Provider Identifier (NPI) is 1942214580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarence Waltrous's specialty?
- Clarence Waltrous is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Clarence Waltrous located?
- Clarence Waltrous's practice location on file with NPPES is 63 Pennsylvania Ave, Brooklyn, NY 11207-2405.
- What is Clarence Waltrous's phone number?
- The practice phone number listed in the NPPES registry for Clarence Waltrous is (646) 317-0720.
- Does Clarence Waltrous accept Medicare?
- Clarence Waltrous is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clarence Waltrous's NPI active?
- Yes — Clarence Waltrous's NPI (1942214580) is active in the NPPES registry as of the last update on 2015-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.