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RAYAN KTEISH MD
NPI 1144801366
Pediatrics in Commack, NY

Active since April 19, 2021PECOS Enrolled
500 COMMACK RD STE 104, COMMACK, NY 11725(631) 444-5437 Get Directions Write a Review

NPPES record last updated: September 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 30, 2025, Jun 26, 2024, Apr 19, 2021 (3 updates tracked since 2021).

About Rayan Kteish Md NPPES

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

RAYAN KTEISH MD (NPI 1144801366) is an individual pediatrics provider in Commack, New York, licensed in New York (328229) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1144801366
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameRAYAN KTEISHCredential: MD
Location Address500 COMMACK RD STE 104Commack, NY 11725-5020
Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-0650
Phone(631) 444-5437
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 19, 2021
Last NPPES UpdateSeptember 27, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2025
✔ NPI 1144801366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 328229
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedPediatrics · Sleep MedicineTaxonomy 2080S0012X · License 328229 (NY)
500 COMMACK RD STE 104, Commack, NY 11725
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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)

Rayan Kteish Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1052807617
PECOS Enrollment IDI20260102001953
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 Rayan Kteish reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stony Brook Children's Service, University Faculty Practice Corporatio
11 mi
Pediatrics
SUNY @ STONY BROOK, HSC, L11, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 191 clinicians in this Medicare group
NPI 1083660575 (631) 444-1362

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 11725 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

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

DR. KELLY GILGEOURS MD
Pediatrics
500 COMMACK RD STE 104
COMMACK, NY 11725
Suffolk County (631) 638-0150

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 Rayan Kteish's NPI number?

The NPI number for Rayan Kteish is 1144801366. It was assigned to this individual provider in the NPPES registry on April 19, 2021.

Where is Rayan Kteish located?

Rayan Kteish practices at 500 Commack Rd Ste 104, Commack, NY 11725. The listed phone number is (631) 444-5437.

What is Rayan Kteish's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Rayan Kteish enrolled in Medicare?

Yes. Rayan Kteish is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rayan Kteish's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rayan Kteish reassigns Medicare benefits to Stony Brook Children's Service, University Faculty Practice Corporatio (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 Rayan Kteish'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 Rayan Kteish was last updated on September 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.