KAREN MESSIER (NP-C) – Gerontology Nurse Practitioner, NPI 1295110732
Gerontology Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,971 NURSE PRACTITIONER in MA
Provider Addresses for KAREN MESSIER (NP-C)
89 SUOMI ROAD
HYANNIS, MA 026013634
Phone: (774) 487-8321
Type: Mailing
3231 SW 34TH AVE
OCALA, FL 344748489
Phone: (774) 487-8321
Type: Mailing
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: 2021-12-11
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 |
|---|---|---|---|---|
| I20211211000137 | I | Nurse Practitioner | FL | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 196 | 186 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 33 | $0 |
| 99497 | Advance care planning, first 30 minutes | 21 | 21 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 15 | 15 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 13 | 12 | $0 |
Insurance plans in this area (ZIP 02601)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | FL | |
| - | FL | |
| Nurse Practitioner | FL | |
| Internal Medicine | WV | |
| - | FL | |
| Internal Medicine | FL | |
| Neurology, Hospice/Palliative Care, Psychiatry | FL | |
| - | FL | |
| - | PA |
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