MS. ANN MARIE DEMPSEY (P.A.) – Physician Assistant, NPI 1245317684
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,091 PHYSICIAN ASSISTANT in MA
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Provider Addresses for MS. ANN MARIE DEMPSEY (P.A.)
800 WASHINGTON ST # 5589
BOSTON, MA 021111552
Phone: (617) 636-5589
Fax: (617) 636-9095
Type: Mailing
Newton-Wellesley Hospital, 2014, Washington Street, Newton Lower Falls, Newton, Middlesex County, Massachusetts, 02462, United States
NEWTON-WELLESLY HOSPITAL, DEPT OF GENERAL SURGERY
NEWTON, MA 024621607
Phone: (617) 243-6000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $38.
Total Amount is formed as General ($38) + Research ($0) + Ownership ($0) = $38.
Last reported payment date: 2024-02-01 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($22).
Total Amount
$38
General + Research + Ownership
Payments
2
Total payment records
General Amount
$38
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-01
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $22 |
| Olympus America Inc. | $16 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-10-13
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20071013000109 | I | Physician Assistant | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 02111)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Plastic And Reconstructive Surgery | CT | |
| - | MA | |
| Physician Assistant | MA | |
| Gastroenterology, Internal Medicine | MA | |
| General Surgery | MA | |
| General Surgery | MA | |
| Physician Assistant | NY | |
| Physician Assistant | NY | |
| - | MA | |
| Physician Assistant | CO |
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