DR. MICHAEL J PARRELLA PH.D.
NPI 1699742577
Clinical Neuropsychologist in Port Jefferson, NY
About Dr. Michael J Parrella Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL J PARRELLA PH.D. (NPI 1699742577) is an individual clinical neuropsychologist in Port Jefferson, New York, licensed in New York (9908) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with St Charles Hospital, and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Michael J Parrella Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Michael Parrella reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Port Jefferson, NY 11777
- Reassigned Medicare billing, New York enrollment
- 210 clinicians in this Medicare group
Bay Shore, NY 11706
- Reassigned Medicare billing, New York enrollment
- 395 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Charles Hospital
Acute Care Hospitals · Port Jefferson, NYOther Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
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 Michael Parrella's NPI number?
The NPI number for Michael Parrella is 1699742577. It was assigned to this individual provider in the NPPES registry on March 1, 2006.
Where is Michael Parrella located?
Michael Parrella practices at 646 Main St, Port Jefferson, NY 11777. The listed phone number is (631) 473-4652.
What is Michael Parrella's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Michael Parrella enrolled in Medicare?
Yes. Michael Parrella is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Parrella's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Parrella reassigns Medicare benefits to 2 organizations: St. Charles Hospital Corp. (Port Jefferson, NY) and Good Samaritan Hospital Medical Center (Bay Shore, 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 Michael Parrella's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Parrella affiliated with any hospitals?
According to CMS data, Michael Parrella is affiliated with St Charles Hospital.
When was this NPI record last updated?
The NPPES record for Michael Parrella was last updated on December 8, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Michael J Parrella, PH.D. · NPI 1699742577
Clinical Neuropsychologist provider in Port Jefferson, New York. Individual provider, active in the CMS NPPES registry since March 1, 2006.
## Identity
- **NPI:** 1699742577 (Entity type: Individual)
- **Enumerated:** March 1, 2006
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **State license:** 9908 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 646 MAIN ST, Port Jefferson, NY 11777-2235
- **Phone:** (631) 473-4652 · **Fax:** (631) 473-4652
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): St. Charles Hospital Corp. (NPI 1497765630, Port Jefferson, NY); Good Samaritan Hospital Medical Center (NPI 1275820961, Bay Shore, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1989
## Record status
- **NPPES last updated:** December 8, 2011
- **Other identifiers:** Medicare ID-Type Unspecified V71412 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1699742577) · Data from the CMS NPPES public registry.