Nicholas Walter Martirossian, PA-C
Physician Assistant · Westerly, RI
Nicholas Walter Martirossian, PA-C is a physician assistant with a practice address in Westerly, Rhode Island, and NPI 1588377980, issued on Dec 30, 2022. Check the license (Rhode Island PA01535, as entered in NPPES) with the Rhode Island board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicholas Walter Martirossian
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA01535 RI
Self-reported in NPPES; status is on the state search - Practice location
- 25 Wells St, Westerly, RI 02891
- Phone
- (401) 348-3325
- Enumerated
- Dec 30, 2022
- Record last updated
- Jun 15, 2026
- Medicare enrollment
- Enrolled (PECOS I20230223000729); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 683 in Rhode Island → Look up another NPI →
Also registered at 25 Wells St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica AimoneRegistered Dietitian1659469088
- Matthew Amaral, PHARMD., RPHPharmacist1750948667
- Jeanne Ansel, PAPhysician Assistant1124067178
- Bridget Azera, MDHospitalist Physician1861997272
- Bart Bachura, CRNACertified Registered Nurse Anesthetist1568846301
- Julie Barber, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1144887118
Verify Nicholas Walter Martirossian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Rhode Island board licenses this profession
Search for license PA01535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average physician assistant in 2024
372 Medicare Part D claims for 256 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Cephalexin48 claims
- Amoxicillin-Clavulanate Potass38 claims
- Doxycycline Hyclate35 claims
- Prednisone27 claims
- Sulfamethoxazole-Trimethoprim27 claims
- Cyclobenzaprine Hcl22 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.
Bills Medicare through 2 group practices
- Lawrence And Memorial Hospital Inc.New London, CT
- Lmw Healthcare IncWesterly, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Walter Martirossian among 683 physician assistant records in Rhode Island
Nicholas Walter Martirossian, PA-C is one of 683 physician assistant records with a practice address in Rhode Island. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 68% of them.
- NPI issued2022 · 68% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2022 · median 2019 among the 490 with a school on file
- Record last updated2026 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 physician assistant records list a practice address in Westerly
They are 13 of the 416 NPPES records with a practice address in Westerly, and 683 physician assistant records in Rhode Island.
All 683 in Rhode Island → Every provider in Westerly → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jeanne Ansel, PAWesterly, RI 028911124067178
- Baokim Bonelli, PA-CWesterly, RI 028911841627353
- Kelly Burns, PA-CWesterly, RI 028911760805493
- Emma Cahoon, PA-CWesterly, RI 028911235790569
- Rachel Corcoran, PA-CWesterly, RI 028911154983815
- Jonathan Eckel, PA-CWesterly, RI 028911043133457
- Russell Lenihan, PAWesterly, RI 028911780697011
- Barbara Muir, PA-CWesterly, RI 028911104811181
Common questions
What is Nicholas Walter Martirossian, PA-C's NPI number?
Nicholas Walter Martirossian, PA-C's National Provider Identifier (NPI) is 1588377980, issued on Dec 30, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Walter Martirossian, PA-C located?
The NPPES record lists a practice address at 25 Wells St, Westerly, RI, 02891. Phone: (401) 348-3325. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Walter Martirossian, PA-C's license?
NPPES lists Rhode Island license number PA01535, as entered by the provider. Search the Rhode Island board that licenses this profession; the NPPES record confirms identity only.
How much does Nicholas Walter Martirossian, PA-C prescribe under Medicare Part D?
In 2024, Nicholas Walter Martirossian, PA-C had 372 Medicare Part D claims for 256 beneficiaries; the average among physician assistant prescribers was 830. 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.