Kathryn Silvestris, PA-C
Physician Assistant · Lowell, MA
Kathryn Silvestris, PA-C is a physician assistant with a practice address in Lowell, Massachusetts, and NPI 1104448539, issued on May 7, 2020. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Silvestris
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 295 Varnum Ave, Lowell, MA 01854
- Phone
- (978) 937-6000
- Enumerated
- May 7, 2020
- Record last updated
- Aug 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20240130000041); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 295 Varnum Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Donald Agostinelli, M.D.Anatomic Pathology & Clinical Pathology Physician1144296450
- Muneer Ahmad, MDHospitalist Physician1902151301
- Jokha Ahmed, MDGeriatric Medicine (Internal Medicine) Physician1306369749
Verify Kathryn Silvestris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average physician assistant in 2024
366 Medicare Part D claims for 224 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Prednisone31 claims
- Amoxicillin-Clavulanate Potass24 claims
- Oxycodone Hcl23 claims
- Naproxen22 claims
- Ketorolac Tromethamine18 claims
- Cephalexin17 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): 99.5 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).
Bills Medicare through one group practice
- Appledore Medical Group IncPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Silvestris among 4,713 physician assistant records in Massachusetts
Kathryn Silvestris, PA-C is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 56% of them.
- NPI issued2020 · 56% of these records are older, 37% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2019 · median 2019 among the 3,217 with a school on file
- Record last updated2025 · 38% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 physician assistant records list a practice address in Lowell
They are 39 of the 2,992 NPPES records with a practice address in Lowell, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Lowell → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Susannah Clark, PA-CLowell, MA 018541770805202
- Lauren Correia, PA-CLowell, MA 018541861724130
- Marina Davos, PALowell, MA 018541962979385
- Anya Diercksen, PA-CLowell, MA 018541598037921
- Dennis LacroixLowell, MA 018541164488391
- Kristen McWilliams, PA-CLowell, MA 018541700039971
- Rebecca RideoutLowell, MA 018541073993440
- Kimberly Schwab, PA-CLowell, MA 018541396701975
Common questions
What is Kathryn Silvestris, PA-C's NPI number?
Kathryn Silvestris, PA-C's National Provider Identifier (NPI) is 1104448539, issued on May 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Silvestris, PA-C located?
The NPPES record lists a practice address at 295 Varnum Ave, Lowell, MA, 01854. Phone: (978) 937-6000. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Silvestris, PA-C's license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Silvestris, PA-C prescribe under Medicare Part D?
In 2024, Kathryn Silvestris, PA-C had 366 Medicare Part D claims for 224 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Kathryn Silvestris, PA-C's MIPS final score?
The 2023 MIPS final score is 99.5 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.