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JON BRENNAN R-LCSW
NPI 1659863868
Counselor - Mental Health in Center Moriches, NY

Active since June 04, 2018PECOS EnrolledAccepts Medicare Assignment
408 MONTAUK HWY, CENTER MORICHES, NY 11934(631) 874-0185(631) 909-8940 Get Directions Write a Review

NPPES record last updated: January 9, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Jon Brennan R-lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JON BRENNAN R-LCSW (NPI 1659863868) is an individual mental health provider in Center Moriches, New York, licensed in New York (R044718-1) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Melville, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1991).

NPPES Registry Identity

NPI1659863868
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameJON BRENNANCredential: R-LCSW
Location Address408 MONTAUK HWYCenter Moriches, NY 11934-3518
Mailing Address76 Woodland RdMiller Place, NY 11764-1944 · (631) 509-5551
Phone(631) 874-0185
Fax(631) 909-8940
Sole ProprietorYes
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1991
Enumeration DateJune 4, 2018
Last NPPES UpdateJanuary 9, 2020
✔ NPI 1659863868 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in NY · R044718-1
Also ListedPsychologist · Intellectual and Developmental DisabilitiesTaxonomy 103TM1800X · License R044718-1 (NY)
408 MONTAUK HWY, Center Moriches, NY 11934
Open in Google Maps ↗

Secondary Practice Location 1

Location 1900 Walt Whitman RdMelville, NY 11747-2293 · Phone (516) 698-5511 · Fax (516) 418-5377

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

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

Jon Brennan R-lcsw 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.

PECOS PAC ID6103172655
PECOS Enrollment IDI20180713000369
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Jon Brennan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Counseling & Lcsw Services PC
3.3 mi
Clinical
234 MAIN ST
Center Moriches, NY 11934
  • Reassigned Medicare billing, New York enrollment
  • 31 clinicians in this Medicare group
NPI 1770819690 (631) 874-0185
Visiting Counselors Of New York, Lcsw, PLLC
35 mi
Clinical
900 WALT WHITMAN RD STE LL1
Melville, NY 11747
  • Reassigned Medicare billing, New York enrollment
  • 45 clinicians in this Medicare group
NPI 1669906889 (516) 698-5511

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANGELICA MOLINARI LMSW
Social Worker
408 MONTAUK HWY
CENTER MORICHES, NY 11934
Suffolk County (631) 874-0185
MS. ALBA CAROLA ESTUPINAN LMSW
Social Worker
408 MONTAUK HWY
CENTER MORICHES, NY 11934
Suffolk County (631) 874-0185

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 Jon Brennan's NPI number?

The NPI number for Jon Brennan is 1659863868. It was assigned to this individual provider in the NPPES registry on June 4, 2018.

Where is Jon Brennan located?

Jon Brennan practices at 408 Montauk Hwy, Center Moriches, NY 11934. The listed phone number is (631) 874-0185.

What is Jon Brennan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Jon Brennan enrolled in Medicare?

Yes. Jon Brennan 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 Jon Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jon Brennan reassigns Medicare benefits to 2 organizations: Community Counseling & Lcsw Services PC (Center Moriches, NY) and Visiting Counselors Of New York, Lcsw, PLLC (Melville, 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 Jon Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jon Brennan accept?

Health plans from Oscar Health list Jon Brennan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jon Brennan was last updated on January 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.