Marianna Koss, PA
Medical Physician Assistant · New York, NY
Marianna Koss, PA is a medical physician assistant with a practice address in New York, New York, and NPI 1902993561, issued on Oct 6, 2006. Check the license (New York 006256-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marianna Koss
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 006256-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 425 E 61St St, New York, NY 10021
- Phone
- (212) 752-2900
- Enumerated
- Oct 6, 2006
- Record last updated
- Mar 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (212) 752-2949
- Medicaid ID
- 02353208 NY
- Medicare enrollment
- Enrolled (PECOS I20070323000167); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,670 in New York → Look up another NPI →
Also registered at 425 E 61St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Adler, M.D.Gastroenterology Physician1407952104
- Mary Cancellare, PH.D.Psychologist1063578037
- Helen Khilkin-Sogoloff, D.O,Pulmonary Disease Physician1568559052
- Jason Kim, MDPsychiatry Physician1467511659
- Shivani Nazareth, M.S., CGCGenetic Counselor (M.S.)1659326502
- Lona Prasad, MDObstetrics & Gynecology Physician1235160458
Verify Marianna Koss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 006256-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average medical physician assistant in 2024
129 Medicare Part D claims for 37 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Metoprolol Succinate21 claims
- Eliquis17 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.
Industry payments in 2024: $1,521.66
55 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 16,165 providers of this specialty with any payment received $1,055.00 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
- Maimonides Faculty Practice PlanBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marianna Koss among 3,670 medical physician assistant records in New York
Marianna Koss, PA is one of 3,670 medical physician assistant records with a practice address in New York. 76% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 81% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated1997 · median 2014 among the 1,802 with a school on file
- Record last updated2009 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in New York
There are 3,670 medical physician assistant records in New York.
All 3,670 in New York → Every provider in New York → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Alexandra Andrei, PANew York, NY 100211699866012
- Jeanann Clark, PHYSICIAN ASSISTANTNew York, NY 100211073607800
- Elizabeth Dirienzo, PANew York, NY 100211801944004
- Joseph Dmaggio, RPA-CNew York, NY 100211326101320
- Naomi Gable, PANew York, NY 100211073676201
- Aleksandra Kapuler, RPA-CNew York, NY 100211194888149
- Sofiya Kuras, PHYSICIAN ASSISTANTNew York, NY 100211437227691
- Jamil Odeh, PANew York, NY 100211679628424
Common questions
What is Marianna Koss, PA's NPI number?
Marianna Koss, PA's National Provider Identifier (NPI) is 1902993561, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marianna Koss, PA located?
The NPPES record lists a practice address at 425 E 61St St, New York, NY, 10021. Phone: (212) 752-2900. Providers update this record themselves, so call before visiting.
How can I verify Marianna Koss, PA's license?
NPPES lists New York license number 006256-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marianna Koss, PA prescribe under Medicare Part D?
In 2024, Marianna Koss, PA had 129 Medicare Part D claims for 37 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.