Lindsay M. Demsey, PA-C
Physician Assistant · Winchester, MA
Lindsay M. Demsey, PA-C is a physician assistant with a practice address in Winchester, Massachusetts, and NPI 1992079883, issued on Feb 24, 2012. Check the license (Massachusetts PA4282, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lindsay M. Demsey
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA4282 MA
Self-reported in NPPES; status is on the state search - Practice location
- 955 Main St, Winchester, MA 01890
- Phone
- (781) 729-4878
- Enumerated
- Feb 24, 2012
- Record last updated
- Dec 10, 2025
- Fax
- (781) 729-5989
- Medicare enrollment
- Enrolled (PECOS I20140702001615); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2011
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 955 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lindsay M. Demsey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA4282Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average physician assistant in 2024
451 Medicare Part D claims for 123 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Betamethasone Diprop Augmented84 claims
- Ketoconazole84 claims
- Ciclopirox47 claims
- Triamcinolone Acetonide42 claims
- Alclometasone Dipropionate22 claims
- Clindamycin Phosphate20 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: $922.74
29 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. 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 2 group practices
- Howard S Goldberg MD IncSwampscott, MA
- Robert J Obrien JR MD And Assoc PCDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lindsay M. Demsey among 4,713 physician assistant records in Massachusetts
Lindsay M. Demsey, 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 2012, is newer than 25% of them.
- NPI issued2012 · 25% of these records are older, 72% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2011 · 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).
12 physician assistant records list a practice address in Winchester
They are 12 of the 439 NPPES records with a practice address in Winchester, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Winchester → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Corey Bova, PA-CWinchester, MA 018901831071067
- Connor Comeau, PA-CWinchester, MA 018901730935073
- Stefanie Delaney, PA-CWinchester, MA 018901194723593
- Kelsey Hunter, PA-CWinchester, MA 018901316470537
- Jessica King, PA-CWinchester, MA 018901982317814
- Alexandria McGovern, PA-CWinchester, MA 018901083110753
- Molly Naeger, PA-CWinchester, MA 018901225504236
- Madeline Randolph, PA-CWinchester, MA 018901578117032
Common questions
What is Lindsay M. Demsey, PA-C's NPI number?
Lindsay M. Demsey, PA-C's National Provider Identifier (NPI) is 1992079883, issued on Feb 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Lindsay M. Demsey, PA-C located?
The NPPES record lists a practice address at 955 Main St, Winchester, MA, 01890. Phone: (781) 729-4878. Providers update this record themselves, so call before visiting.
How can I verify Lindsay M. Demsey, PA-C's license?
NPPES lists Massachusetts license number PA4282, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Lindsay M. Demsey, PA-C prescribe under Medicare Part D?
In 2024, Lindsay M. Demsey, PA-C had 451 Medicare Part D claims for 123 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.