MARZENA GRYCZEWSKI (APRN) – Family Nurse Practitioner, NPI 1548500663
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,191 NURSE PRACTITIONER in CT
Provider Addresses for MARZENA GRYCZEWSKI (APRN)
PO BOX 415933
HARTFORD HOSPITAL PROFESSONAL SERVICES
BOSTON, MA 022415933
Phone: (860) 545-7602
Type: Mailing
80 SEYMOUR STREET
HARTFORD HOSPITAL CARDIOLOGY DEPT
HARTFORD, CT 061025037
Phone: (860) 545-4398
Type: Location
555 WILLARD AVE # 506
NEWINGTON, CT 061112631
Phone: (860) 256-1553
Fax: (860) 667-6799
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $457.
Total Amount is formed as General ($457) + Research ($0) + Ownership ($0) = $457.
Last reported payment date: 2024-07-17 • Largest payer in this snapshot: ABBVIE INC. ($220).
Total Amount
$457
General + Research + Ownership
Payments
4
Total payment records
General Amount
$457
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $220 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $125 |
| Otsuka America Pharmaceutical, Inc. | $112 |
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: 2013-06-18
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 |
|---|---|---|---|---|
| I20130618000104 | I | Nurse Practitioner | CT | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 13 | 11 | $0 |
Insurance plans in this area (ZIP 02241)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology) | NY | |
| Physician Assistant | CT | |
| - | CT | |
| - | CT | |
| - | CT | |
| Physician Assistant | CT | |
| - | CT | |
| Emergency Medicine | CT | |
| - | CT | |
| Clinical Psychologist | CT |
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