MELISSA A O'NEILL (APRN) – Nurse Practitioner, NPI 1235236969
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,191 NURSE PRACTITIONER in CT
Provider Addresses for MELISSA A O'NEILL (APRN)
85 Retreat Ave
Hartford, CT 061062555
Phone: (860) 249-6291
Fax: (860) 728-0151
Type: Location
85, Retreat Avenue, Hartford, Hartford County, Connecticut, 06106, United States
HARTFORD, CT 061062555
Phone: (860) 249-6291
Fax: (860) 728-0151
Type: Location
1 MEDICAL CENTER DR
LEBANON, NH 037561000
Phone: (603) 650-5000
Fax: (603) 640-1228
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 $51.
Total Amount is formed as General ($51) + Research ($0) + Ownership ($0) = $51.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Mirati Therapeutics, Inc. ($29).
Total Amount
$51
General + Research + Ownership
Payments
2
Total payment records
General Amount
$51
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Mirati Therapeutics, Inc. | $29 |
| Astellas Pharma US Inc | $22 |
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: 2026-02-26
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 |
|---|---|---|---|---|
| I20080326000280 | I | Nurse Practitioner | CT | TBD |
| I20260226000152 | I | Nurse Practitioner | NH | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 112 | 76 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 108 | 58 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 20 | 15 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 06106)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CT | |
| Emergency Medicine | RI | |
| P S Y C H I A T R Y | MA | |
| Hematology/Oncology, Medical Oncology | NJ | |
| Physician Assistant | ME | |
| Hospitalist, Internal Medicine | NY | |
| Physician Assistant | CT | |
| Physician Assistant | GA | |
| Internal Medicine | CT | |
| Physician Assistant | RI |
Reviews
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