ALISON C. MADDEN (MD) – Obstetrics & Gynecology Physician, NPI 1306829221
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
239 OBSTETRICS/GYNECOLOGY in NH
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Provider Addresses for ALISON C. MADDEN (MD)
C/O ST MARY'S HEALTH SYSTEM - PROVIDER ENROLLMENT
PO BOX 7291
LEWISTON, ME 042437291
Phone: (207) 777-8695
Fax: (207) 777-8800
Type: Mailing
20, Kinsley Street, Ward 4, Nashua, Hillsborough County, New Hampshire, 03060, United States
NASHUA, NH 030603634
Phone: (603) 883-3365
Fax: (603) 883-5758
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2025-10-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20190610002168 | I | Obstetrics/Gynecology | NH | TBD |
| I20251009000620 | I | Obstetrics/Gynecology | NY | 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 04243)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | NH | |
| - | NH | |
| - | ME | |
| General Surgery | NH | |
| Family Practice | NH | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | NH | |
| Nurse Practitioner | MA | |
| - | NH | |
| - | NH | |
| - | NH |
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