Katherine Dillen, PA-C
Physician Assistant · Mount Kisco, NY
Katherine Dillen, PA-C is a physician assistant with a practice address in Mount Kisco, New York, and NPI 1295376051, issued on Oct 3, 2019. Check the license with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Dillen
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 400 E Main St, Mount Kisco, NY 10549
- Phone
- (914) 666-1200
- Enumerated
- Oct 3, 2019
- Entity
- Type 1 · individual
Also registered at 400 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadia Abdulwahab, MDInternal Medicine Physician1881338515
- Neha Aggarwal, PHYSICIAN ASSISTANTPhysician Assistant1710318696
- Sameer AhmadStudent in an Organized Health Care Education/Training Program1770422172
- Ashitha AlexStudent in an Organized Health Care Education/Training Program1609715226
- Emmanuel Snr Amoateng, MDStudent in an Organized Health Care Education/Training Program1871353342
- Nandini Anandu, MDInternal Medicine Physician1023056678
Verify Katherine Dillen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York 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
82% fewer Medicare Part D claims than the average physician assistant in 2024
146 Medicare Part D claims for 108 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. 101 claims were for opioids.
Most prescribed
- Tramadol Hcl70 claims
- Oxycodone Hcl27 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 Medicare quality score for 2023: 89.4 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 or facility affiliation
- North Shore-Lij Medical PCManhasset, NY
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
25 physician assistant records list a Mount Kisco practice address
They are 25 of the 1,003 NPPES records with a Mount Kisco practice address, and 15,097 physician assistant records in New York.
All 25 in Mount Kisco → All 15,097 in New York → Every provider in Mount Kisco →
Other physician assistant records in New York
- Brynn Aakjar, P.A.Yonkers, NY1447592456
- Andrea Aaron, PABronx, NY1427103555
- Gabriella AaronCentral Islip, NY1790605376
- Danielle AaronsSmithtown, NY1881207520
- John AbadeerBrooklyn, NY1801434949
- Zenebou Abalo-Toga, PANew York, NY1124556154
- Kevin Alfred Abalos, PA-CCambria Heights, NY1700286424
- Clarisse AbanillaNew York, NY1598445579
- Marie Abate, PA-CValhalla, NY1285225524
- Jonathan Abayev, RPA-CFlushing, NY1952580102
Common questions
What is Katherine Dillen, PA-C's NPI number?
Katherine Dillen, PA-C's National Provider Identifier (NPI) is 1295376051, issued on Oct 3, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Dillen, PA-C located?
The NPPES record lists a practice address at 400 E Main St, Mount Kisco, NY, 10549. Phone: (914) 666-1200. Providers update this record themselves, so call before visiting.
How can I verify Katherine Dillen, PA-C's license?
Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Dillen, PA-C prescribe under Medicare Part D?
In 2024, Katherine Dillen, PA-C had 146 Medicare Part D claims for 108 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
What is Katherine Dillen, PA-C's Medicare quality score?
The 2023 MIPS final score is 89.4 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.