Ellen Leah Kotwas-Song, M.D.
Neurology Physician · West Nyack, NY
Ellen Leah Kotwas-Song, M.D. is a neurology physician with a practice address in West Nyack, New York, and NPI 1285892398, issued on May 26, 2008. Check the license (New York 245914, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ellen Leah Kotwas-Song
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 245914 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2 Crosfield Ave, West Nyack, NY 10994
- Phone
- (845) 353-4344
- Enumerated
- May 26, 2008
- Record last updated
- Jan 24, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (845) 353-2661
- Medicare enrollment
- Enrolled (PECOS I20101021000257); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,778 in New York → Look up another NPI →
Also registered at 2 Crosfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ellen Leah Kotwas-Song 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 245914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average neurology physician in 2024
1,192 Medicare Part D claims for 264 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl161 claims
- Carbidopa-Levodopa103 claims
- Gabapentin80 claims
- Levetiracetam71 claims
- Memantine Hcl Er59 claims
- Pregabalin54 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,429.90
128 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- White Plains Medical Diagnostic Services, PCWest Nyack, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Leah Kotwas-Song among 1,778 neurology physician records in New York
Ellen Leah Kotwas-Song, 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 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 38% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2005 · median 2004 among the 1,238 with a school on file
- Record last updated2013 · 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).
6 neurology physician records list a practice address in West Nyack
They are 6 of the 439 NPPES records with a practice address in West Nyack, and 1,778 neurology physician records in New York.
All 1,778 in New York → Every provider in West Nyack → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Marianna Golden, M.D.West Nyack, NY 109941538236278
- Stuart Lestch, M.D.West Nyack, NY 109941184709164
- Marc London, M.D.West Nyack, NY 109941720140767
- Xiangmin Peng, MDWest Nyack, NY 109941013235340
- Earl Zeitlin, M.D.West Nyack, NY 109941629130679
- Patricia Falivena, D.O.W Haverstraw, NY 109931255427100
- Glenn Seliger, MDWest Haverstraw, NY 109931912904426
- John Ferro, M.D.Warwick, NY 109901750333449
Common questions
What is Ellen Leah Kotwas-Song, M.D.'s NPI number?
Ellen Leah Kotwas-Song, M.D.'s National Provider Identifier (NPI) is 1285892398, issued on May 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Leah Kotwas-Song, M.D. located?
The NPPES record lists a practice address at 2 Crosfield Ave, West Nyack, NY, 10994. Phone: (845) 353-4344. Providers update this record themselves, so call before visiting.
How can I verify Ellen Leah Kotwas-Song, M.D.'s license?
NPPES lists New York license number 245914, 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 Ellen Leah Kotwas-Song, M.D. prescribe under Medicare Part D?
In 2024, Ellen Leah Kotwas-Song, M.D. had 1,192 Medicare Part D claims for 264 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Ellen Leah Kotwas-Song, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.