Mary Heather Rosen, PA
Physician Assistant · Warsaw, NY
Mary Heather Rosen, PA is a physician assistant with a practice address in Warsaw, New York, and NPI 1265628580, issued on Sep 20, 2007. Check the license (New York 011923, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Heather Rosen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 011923 NY
11923 NY
Self-reported in NPPES; status is on the state search - Practice location
- 76 N Main Street, Warsaw, NY 14569
- Phone
- (585) 786-3503
- Enumerated
- Sep 20, 2007
- Record last updated
- Jun 29, 2023
- Fax
- (585) 786-3505
- Medicaid ID
- 02939646 NY
- Medicare enrollment
- Enrolled (PECOS I20071204000550); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 15,555 in New York → Look up another NPI →
Verify Mary Heather Rosen 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 011923Check 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
373 Medicare Part D claims for 303 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Doxycycline Hyclate71 claims
- Methylprednisolone65 claims
- Prednisone46 claims
- Nitrofurantoin Mono-Macro29 claims
- Sulfamethoxazole-Trimethoprim14 claims
- Azithromycin12 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Nicholas H Noyes Memorial HospitalDansville, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mary Heather Rosen among 15,555 physician assistant records in New York
Mary Heather Rosen, PA is one of 15,555 physician assistant records with a practice address in New York. 74% 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 13% of them.
- NPI issued2007 · 13% of these records are older, 80% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2007 · median 2018 among the 8,158 with a school on file
- Record last updated2023 · 48% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 physician assistant records list a practice address in Warsaw
They are 8 of the 335 NPPES records with a practice address in Warsaw, and 15,555 physician assistant records in New York.
All 15,555 in New York → Every provider in Warsaw → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kelsey Adams, PA-CWarsaw, NY 145691437628674
- Brittany Ball, PAWarsaw, NY 145691902449044
- David Cooney, PA-CWarsaw, NY 145691447137765
- Daniel Ludeman, PA-CWarsaw, NY 145691639746043
- Emily McDermott, PAWarsaw, NY 145691831965979
- Edward Piechocki, PAWarsaw, NY 145691750389714
- Adam SerioWarsaw, NY 145691174449847
- Anita Eck, PA-CWayland, NY 145721003866401
Common questions
What is Mary Heather Rosen, PA's NPI number?
Mary Heather Rosen, PA's National Provider Identifier (NPI) is 1265628580, issued on Sep 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Heather Rosen, PA located?
The NPPES record lists a practice address at 76 N Main Street, Warsaw, NY, 14569. Phone: (585) 786-3503. Providers update this record themselves, so call before visiting.
How can I verify Mary Heather Rosen, PA's license?
NPPES lists New York license number 011923, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Heather Rosen, PA prescribe under Medicare Part D?
In 2024, Mary Heather Rosen, PA had 373 Medicare Part D claims for 303 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Mary Heather Rosen, PA's MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. 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.