Mary P. Shierly, PA
Physician Assistant · Castleton On Hudson, NY
Mary P. Shierly, PA is a physician assistant with a practice address in Castleton On Hudson, New York, and NPI 1831401983, issued on Jul 6, 2010. Check the license (New York 014042, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary P. Shierly
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 014042 NY
PA4011 MA
Self-reported in NPPES; status is on the state search - Practice location
- 35 Empire State Blvd, Castleton On Hudson, NY 12033
- Phone
- (518) 477-2167
- Enumerated
- Jul 6, 2010
- Record last updated
- Mar 13, 2026
- Medicaid ID
- 03532432 NY
- Medicare enrollment
- Enrolled (PECOS I20100916001129); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Mary P. Shierly 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 014042Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.4 times the Medicare Part D claims of the average physician assistant in 2024
3,625 Medicare Part D claims for 1,396 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 193 claims were for opioids.
Most prescribed
- Atorvastatin Calcium206 claims
- Omeprazole152 claims
- Levothyroxine Sodium126 claims
- Amlodipine Besylate105 claims
- Lisinopril104 claims
- Losartan Potassium97 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.
Industry payments in 2024: $97.70
1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 64,719 providers of this specialty with any payment received $841.65 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
- Mary Imogene Bassett HospitalCooperstown, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 physician assistant records list a practice address in Castleton On Hudson
They are 1 of the 50 NPPES records with a practice address in Castleton On Hudson, and 15,555 physician assistant records in New York.
All 15,555 in New York → Every provider in Castleton On Hudson →
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
- Vincent Abanilla, PA-CBrooklyn, NY1366201808
- Marie Abate, PA-CValhalla, NY1285225524
Common questions
What is Mary P. Shierly, PA's NPI number?
Mary P. Shierly, PA's National Provider Identifier (NPI) is 1831401983, issued on Jul 6, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary P. Shierly, PA located?
The NPPES record lists a practice address at 35 Empire State Blvd, Castleton On Hudson, NY, 12033. Phone: (518) 477-2167. Providers update this record themselves, so call before visiting.
How can I verify Mary P. Shierly, PA's license?
NPPES lists New York license number 014042, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mary P. Shierly, PA prescribe under Medicare Part D?
In 2024, Mary P. Shierly, PA had 3,625 Medicare Part D claims for 1,396 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.