Karen S. Marder, M.D.
Neurology Physician · New York, NY
Karen S. Marder, M.D. is a neurology physician with a practice address in New York, New York, and NPI 1710057369, issued on Nov 9, 2006. Check the license (New York 158652, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Karen S. Marder
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 158652 NY
Self-reported in NPPES; status is on the state search - Practice location
- 710 W 168TH St, New York, NY 10032
- Phone
- (212) 305-6939
- Enumerated
- Nov 9, 2006
- Record last updated
- Feb 16, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (212) 305-1145
- Medicaid ID
- 01105673 NY
- Medicare enrollment
- Enrolled (PECOS I20100916000677); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 710 W 168TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Asa Abeliovich, M.D.Neurology Physician1740234129
- Julian Agin-Liebes, MDNeurology Physician1114452406
- Alexander Agopyan-Miu, MDStudent in an Organized Health Care Education/Training Program1124761465
- Maria Antonina Alas, NPAcute Care Nurse Practitioner1922883248
- Juan Luis Alcala Zermeno, MDNeurology Physician1538645841
- Roy Alcalay, MDNeurology Physician1457487167
Verify Karen S. Marder 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 158652Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average neurology physician in 2024
925 Medicare Part D claims for 131 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Donepezil Hcl155 claims
- Escitalopram Oxalate121 claims
- Memantine Hcl Er63 claims
- Galantamine Er60 claims
- Sertraline Hcl59 claims
- Olanzapine48 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $507.03
7 payments; by number, the most common kind was food and beverage; the largest payer was Alnylam Pharmaceuticals 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
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neurology Physician providers in New York
There are 1,778 neurology physician records in New York.
Other neurology physician records in New York
- Ajay Abad, MDBuffalo, NY1639311244
- Sara Abdelhafiz, MDSyracuse, NY1487232344
- Sami Abdul-Malak, MDSyracuse, NY1891835658
- Asa Abeliovich, M.D.New York, NY1740234129
- Yvelyne Abellard, MDNew York, NY1285734202
- Nada Abou-Fayssal, MDBrooklyn, NY1225095292
- Charles Abrams, M.D.Brooklyn, NY1144347410
- Rory Abrams, MDNew York, NY1902284292
- Lauren Abrey, MDNew York, NY1336110360
- Jose Acevedo, MDNew York, NY1568455525
Common questions
What is Karen S. Marder, M.D.'s NPI number?
Karen S. Marder, M.D.'s National Provider Identifier (NPI) is 1710057369, issued on Nov 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen S. Marder, M.D. located?
The NPPES record lists a practice address at 710 W 168TH St, New York, NY, 10032. Phone: (212) 305-6939. Providers update this record themselves, so call before visiting.
How can I verify Karen S. Marder, M.D.'s license?
NPPES lists New York license number 158652, 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 Karen S. Marder, M.D. prescribe under Medicare Part D?
In 2024, Karen S. Marder, M.D. had 925 Medicare Part D claims for 131 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Karen S. Marder, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.