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MARRET ANDERSON NP-C
NPI 1659785335
Nurse Practitioner - Adult Health in Wading River, NY

Active since June 20, 2014PECOS Enrolled
36 COTTON TAIL CT, WADING RIVER, NY 11792(631) 375-7768 Get Directions Write a Review

NPPES record last updated: June 20, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Marret Anderson Np-c NPPES

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

MARRET ANDERSON NP-C (NPI 1659785335) is an individual adult health provider in Wading River, New York, licensed in New York (306587) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659785335
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMARRET ANDERSONCredential: NP-C
Location Address36 COTTON TAIL CTWading River, NY 11792-2187
Mailing Address36 Cotton Tail CtWading River, NY 11792-2187 · (631) 375-7768
Phone(631) 375-7768
Sole ProprietorYes
Enumeration DateJune 20, 2014
✔ NPI 1659785335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in NY · 306587
36 COTTON TAIL CT, Wading River, NY 11792
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marret Anderson Np-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Marret Anderson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

John T. Mather Memorial Hospital
11 mi
Critical Care Medicine
75 N COUNTRY RD
Port Jefferson, NY 11777
  • Reassigned Medicare billing, New York enrollment
  • 255 clinicians in this Medicare group
NPI 1467249334 (631) 473-1320

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 11792 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Marret Anderson's NPI number?

The NPI number for Marret Anderson is 1659785335. It was assigned to this individual provider in the NPPES registry on June 20, 2014.

Where is Marret Anderson located?

Marret Anderson practices at 36 Cotton Tail Ct, Wading River, NY 11792. The listed phone number is (631) 375-7768.

What is Marret Anderson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Marret Anderson enrolled in Medicare?

Yes. Marret Anderson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marret Anderson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marret Anderson reassigns Medicare benefits to John T. Mather Memorial Hospital (Port Jefferson, NY). The 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 Marret Anderson'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 Marret Anderson was last updated on June 20, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.