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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LAUREN KOLLAR
NPI 1720947120
Nurse Practitioner - Family in Lake Grove, NY

Active since January 20, 2026PECOS Enrolled
4 SMITH HAVEN MALL STE 112, LAKE GROVE, NY 11755(631) 444-4686 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 8, 2026, Jun 4, 2026, Jan 20, 2026 (3 updates tracked since 2026).

About Lauren Kollar NPPES

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

LAUREN KOLLAR (NPI 1720947120) is an individual family provider in Lake Grove, New York, licensed in New York (F357589) and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1720947120
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameLAUREN KOLLAR
Location Address4 SMITH HAVEN MALL STE 112Lake Grove, NY 11755-1251
Mailing Address101 Nicolls RdStony Brook, NY 11794-0001 · (631) 444-5454
Phone(631) 444-4686
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 20, 2026
Last NPPES UpdateSeptember 8, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2026
✔ NPI 1720947120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NY · F357589
4 SMITH HAVEN MALL STE 112, Lake Grove, NY 11755
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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)

Lauren Kollar is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6406311794
PECOS Enrollment IDI20260717000807
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 Lauren Kollar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Associates In Obstetrics & Gynecology, University Faculty P
4.4 mi
Obstetrics & Gynecology
100 NICOLLS RD, SUNY @ STONY BROOK HSC, L9, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 125 clinicians in this Medicare group
NPI 1538114723 (631) 444-2731

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 11755 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.

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.

EMILY HARLAN STETLER MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
4 SMITH HAVEN MALL STE 112
LAKE GROVE, NY 11755
Suffolk County (631) 444-4686
ZENOBIA THRESA GONSALVES MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
4 SMITH HAVEN MALL STE 112
LAKE GROVE, NY 11755
Suffolk County (631) 444-4686

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 Lauren Kollar's NPI number?

The NPI number for Lauren Kollar is 1720947120. It was assigned to this individual provider in the NPPES registry on January 20, 2026.

Where is Lauren Kollar located?

Lauren Kollar practices at 4 Smith Haven Mall Ste 112, Lake Grove, NY 11755. The listed phone number is (631) 444-4686.

What is Lauren Kollar's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Lauren Kollar enrolled in Medicare?

Yes. Lauren Kollar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lauren Kollar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Kollar reassigns Medicare benefits to University Associates In Obstetrics & Gynecology, University Faculty P (Stony Brook, 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 Lauren Kollar'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 Lauren Kollar was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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.