MARISA ANNE GREECHAN RN, CPNP
NPI 1356639041
Nurse Practitioner - Pediatrics in Brooklyn, NY
About Marisa Anne Greechan Rn, Cpnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISA ANNE GREECHAN RN, CPNP (NPI 1356639041) is an individual pediatrics provider in Brooklyn, New York, licensed in New York (382189) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marisa Anne Greechan Rn, Cpnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marisa Greechan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11215
- Reassigned Medicare billing, New York enrollment
- 1,029 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11215
BROOKLYN, NY 11215
BROOKLYN, NY 11215
BROOKLYN, NY 11215
BROOKLYN, NY 11215
BROOKLYN, NY 11215
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marisa Greechan's NPI number?
The NPI number for Marisa Greechan is 1356639041. It was assigned to this individual provider in the NPPES registry on July 14, 2011.
Where is Marisa Greechan located?
Marisa Greechan practices at 506 6th Street Dept Of Pediatrics, Brooklyn, NY 11215. The listed phone number is (718) 780-3838.
What is Marisa Greechan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Marisa Greechan enrolled in Medicare?
Yes. Marisa Greechan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marisa Greechan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marisa Greechan reassigns Medicare benefits to 2 organizations: Kings Physician Services, PC (Brooklyn, NY) and Montefiore Medical Center (New York, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marisa Greechan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marisa Greechan was last updated on December 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Marisa Anne Greechan, RN, CPNP · NPI 1356639041
Pediatrics physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since July 14, 2011.
## Identity
- **NPI:** 1356639041 (Entity type: Individual)
- **Enumerated:** July 14, 2011
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** 382189 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 506 6TH STREET, DEPT OF PEDIATRICS, Brooklyn, NY 11215
- **Phone:** (718) 780-3838
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Kings Physician Services, PC (NPI 1326698879, Brooklyn, NY); Montefiore Medical Center (NPI 1760288278, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 18, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1356639041) · Data from the CMS NPPES public registry.