Clarence L. Waltrous, M.D.
Nephrology Physician · Brooklyn, NY
Clarence L. Waltrous, M.D. is a nephrology physician with a practice address in Brooklyn, New York, and NPI 1942214580, issued on Jul 28, 2006. Check the license (New York 134427, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Clarence L. Waltrous
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 134427 NY
Self-reported in NPPES; status is on the state search - Practice location
- 63 Pennsylvania Ave, Brooklyn, NY 11207
- Phone
- (646) 317-0720
- Enumerated
- Jul 28, 2006
- Record last updated
- Jul 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 01535928 NY
- Medicare enrollment
- Enrolled (PECOS I20110301001091); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1976
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,049 in New York → Look up another NPI →
Also registered at 63 Pennsylvania Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jesus Miranda, M.D.Specialist1144335068
Verify Clarence L. Waltrous in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 134427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average nephrology physician in 2024
46 Medicare Part D claims for 14 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Linden Medical Group, PLLCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clarence L. Waltrous among 1,049 nephrology physician records in New York
Clarence L. Waltrous, M.D. is one of 1,049 nephrology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 47% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1976 · median 1999 among the 764 with a school on file
- Record last updated2015 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in New York
There are 1,049 nephrology physician records in New York.
All 1,049 in New York → Every provider in Brooklyn → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Paul Byssainthe, M.D.Brooklyn, NY 112061770680738
- Marie-Alex Michel, M.D.Brooklyn, NY 112061477636397
- Nwakile Ojike, MDBrooklyn, NY 112061134743446
- Sine Akten, M.D.Brooklyn, NY 112091891010641
- Robert Barth, MDBrooklyn, NY 112091225080773
- Philip Goldwasser, M.D.Brooklyn, NY 112091194778530
- Jubil Malieckal, MDBrooklyn, NY 112051497979751
- Richard Molina, M.D.Brooklyn, NY 112091629000393
Common questions
What is Clarence L. Waltrous, M.D.'s NPI number?
Clarence L. Waltrous, M.D.'s National Provider Identifier (NPI) is 1942214580, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clarence L. Waltrous, M.D. located?
The NPPES record lists a practice address at 63 Pennsylvania Ave, Brooklyn, NY, 11207. Phone: (646) 317-0720. Providers update this record themselves, so call before visiting.
How can I verify Clarence L. Waltrous, M.D.'s license?
NPPES lists New York license number 134427, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clarence L. Waltrous, M.D. prescribe under Medicare Part D?
In 2024, Clarence L. Waltrous, M.D. had 46 Medicare Part D claims for 14 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.