NPPES file of Aug 9, 2026

Walter Leo Nieves, M.D.

Neurology Physician · Suffern, NY

Walter Leo Nieves, M.D. is a neurology physician with a practice address in Suffern, New York, and NPI 1740206440, issued on Jul 14, 2006. Check the license (New York 132973, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740206440
Name
Walter Leo Nieves
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
132973 NY
Self-reported in NPPES; status is on the state search
Practice location
11 N Airmont RD, Suffern, NY 10901
Phone
(845) 357-5525
Enumerated
Jul 14, 2006
Record last updated
Nov 1, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(845) 357-1613
Medicaid ID
00483358 NY
Medicare enrollment
Enrolled (PECOS I20040223000047); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 1976
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11 N Airmont RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Berkowitz, M.D.Diagnostic Radiology Physician1912908732
  2. Soheila Elaahi, D.D.S., M.S.General Practice Dentistry1265664353
  3. Mark Horowitz, D.D.S.General Practice Dentistry1952455230
  4. Robert Tash, M.D.Diagnostic Radiology Physician1548242266
  5. Guy Towle, D.D.S.General Practice Dentistry1093937732
  6. Nancy Waltner, M.D.Obstetrics & Gynecology Physician1760510911

Verify Walter Leo Nieves in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 132973
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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24% more Medicare Part D claims than the average neurology physician in 2024

1,692 Medicare Part D claims for 106 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Walter Nieves1,692
  2. Specialty average1,370

Most prescribed

  1. Amitriptyline Hcl183 claims
  2. Amantadine148 claims
  3. Ropinirole Hcl130 claims
  4. Topiramate130 claims
  5. Donepezil Hcl126 claims
  6. Gabapentin102 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.

Walter Leo Nieves among 1,778 neurology physician records in New York

Walter Leo Nieves, M.D. is one of 1,778 neurology physician records with a practice address in New York. 83% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1976 · median 2004 among the 1,238 with a school on file
  • Record last updated2017 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in New York

There are 1,778 neurology physician records in New York.

The 8 neurology physician records with the nearest ZIP codes

  1. Mayur Chalia, M.D.Suffern, NY 109011184009888
  2. Jordan Dubow, MDSuffern, NY 109011194935122
  3. Vinod Ravikumar, MDSuffern, NY 109011952806655
  4. Fatima Traore, MDSuffern, NY 109011912401332
  5. Ira Neustadt, M.D.Goshen, NY 109241356400725
  6. Asadolah Baradaran, MDMiddletown, NY 109401114020682
  7. Alejandro Centurion, MDMiddletown, NY 109401184739757
  8. Mukesh Jhaveri, MDMiddletown, NY 109401275526709

Common questions

What is Walter Leo Nieves, M.D.'s NPI number?

Walter Leo Nieves, M.D.'s National Provider Identifier (NPI) is 1740206440, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walter Leo Nieves, M.D. located?

The NPPES record lists a practice address at 11 N Airmont RD, Suffern, NY, 10901. Phone: (845) 357-5525. Providers update this record themselves, so call before visiting.

How can I verify Walter Leo Nieves, M.D.'s license?

NPPES lists New York license number 132973, 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 Walter Leo Nieves, M.D. prescribe under Medicare Part D?

In 2024, Walter Leo Nieves, M.D. had 1,692 Medicare Part D claims for 106 beneficiaries; the average among neurology physician prescribers was 1,370. 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.