Marsha Williamson, N.P.
Nurse Practitioner · Manhasset, NY
Marsha Williamson, N.P. is a nurse practitioner with a practice address in Manhasset, New York, and NPI 1265552277, issued on Mar 31, 2007. Check the license (New York F304057, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marsha Williamson
- Credential
- N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- F304057 NY
Self-reported in NPPES; status is on the state search - Practice location
- 300 Community Dr, Manhasset, NY 11030
- Phone
- (516) 570-4404
- Enumerated
- Mar 31, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (516) 570-4444
- Medicare enrollment
- Enrolled (PECOS I20080818000330); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,097 in New York → Look up another NPI →
Also registered at 300 Community Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Abbondondolo, PAReligious Nonmedical Nursing Personnel1154441186
- Mahmoud AbdelazizInternal Medicine Physician1750814562
- Fatima AbidPhysician Assistant1215669346
- Ahmed AboseriaStudent in an Organized Health Care Education/Training Program1114777067
- Nikil Abraham, CRNACertified Registered Nurse Anesthetist1962180455
- Rolson Abraham, RPHPharmacist1346673209
Verify Marsha Williamson 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 F304057Check 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 nurse practitioner in 2024
31 Medicare Part D claims for 25 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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: $125.00
1 payment: food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 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
- Hicksville Family Medical Care PLLCLong Island City, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marsha Williamson among 3,097 nurse practitioner records in New York
Marsha Williamson, N.P. is one of 3,097 nurse practitioner records with a practice address in New York. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 30% of them.
- NPI issued2007 · 30% of these records are older, 61% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2002 · median 2017 among the 1,360 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 nurse practitioner records list a practice address in Manhasset
They are 33 of the 2,794 NPPES records with a practice address in Manhasset, and 3,097 nurse practitioner records in New York.
All 3,097 in New York → Every provider in Manhasset → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sheila Davies, NPManhasset, NY 110301760420681
- Amy Eldredge, NPManhasset, NY 110301659491637
- Lynda Jahn, MDManhasset, NY 110301134283039
- Deborah Ludy, NPManhasset, NY 110301104945740
- Peggy McCormack, NPManhasset, NY 110301770602864
- Deborah McElligott, NPManhasset, NY 110301417076514
- Daniel McKeon, MDManhasset, NY 110301871657775
- Claire Odenthal, NPManhasset, NY 110301538288675
Common questions
What is Marsha Williamson, N.P.'s NPI number?
Marsha Williamson, N.P.'s National Provider Identifier (NPI) is 1265552277, issued on Mar 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marsha Williamson, N.P. located?
The NPPES record lists a practice address at 300 Community Dr, Manhasset, NY, 11030. Phone: (516) 570-4404. Providers update this record themselves, so call before visiting.
How can I verify Marsha Williamson, N.P.'s license?
NPPES lists New York license number F304057, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marsha Williamson, N.P. prescribe under Medicare Part D?
In 2024, Marsha Williamson, N.P. had 31 Medicare Part D claims for 25 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.