Quick answers
- Does Lindsay M. Demsey accept Medicare assignment?
- Yes. Medicare's clinician data says Lindsay M. Demsey accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Lindsay M. Demsey see?
- In 2024, CMS data shows 167 Original Medicare patients and 994 services for Lindsay M. Demsey. This counts Original Medicare only and measures volume, not quality.
- What is Lindsay M. Demsey's NPI number?
- 1992079883. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Lindsay M. Demsey, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 167 |
|---|---|
| Services billed to Medicare | 994 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)167 services
- Destruction of precancer skin growth, 2-14 growths (17003)111 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)72 services
- Destruction of precancer skin growth, 1 growth (17000)55 services
- Biopsy of related skin growth, first growth (11102)39 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure70%
- High cholesterol69%
- Arthritis38%
- Anxiety33%
- Depression28%
- Diabetes26%
Hospitals where Lindsay M. Demsey works
Medicare's Facility Affiliation Data lists Lindsay M. Demsey at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- North Shore Medical Center -Salem, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220035
- Winchester HospitalWinchester, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220105
Practice locations
Addresses where Lindsay M. Demsey is enrolled with Medicare (CMS data updated October 2, 2026).
- 140 Commonwealth Ave, Suite 201Danvers, MA 01923 (781) 729‑4878
- 833 Main StMelrose, MA 02176 (781) 729‑4878
- 990 Paradise RdSwampscott, MA 01907
- 990 Paradise Rd, 2nd FloorSwampscott, MA 01907
Group practices
Medicare enrollment lists Lindsay M. Demsey as a member of these groups (CMS data updated October 2, 2026).
- Robert J Obrien Jr MD and Assoc PC19 clinicians in the group
- Howard S Goldberg MD Inc10 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Danvers
Clinicians with the same Medicare primary specialty in Danvers, MA — not a recommendation.
Other clinicians in Robert J Obrien Jr MD and Assoc PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992079883 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians