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MS. JANELLE LYNN TYCHNOWITZ RN, CPN, PNP
NPI 1184857336
Nurse Practitioner - Pediatrics in Stony Brook, NY

Active since September 03, 2009PECOS Enrolled
PO BOX 1559, STONY BROOK, NY 11790(631) 444-0650 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Janelle Lynn Tychnowitz Rn, Cpn, Pnp NPPES

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

MS. JANELLE LYNN TYCHNOWITZ RN, CPN, PNP (NPI 1184857336) is an individual pediatrics provider in Stony Brook, New York, licensed in New York (F382571-1) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1184857336
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMS. JANELLE LYNN TYCHNOWITZCredential: RN, CPN, PNP
Location AddressPO BOX 1559Stony Brook, NY 11790-0989
Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-0650
Phone(631) 444-0650
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateSeptember 3, 2009
Last NPPES UpdateMarch 3, 2026
NPPES CertifiedMarch 3, 2026
✔ NPI 1184857336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in NY · F382571-1
Also ListedRegistered Nurse · PediatricsTaxonomy 163WP0200X · License 544842-1 (NY)
PO BOX 1559, Stony Brook, NY 11790
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Janelle Lynn Tychnowitz Rn, Cpn, Pnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5395225379
PECOS Enrollment IDI20260218000931
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11790 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. MELISSA TUOMI PSY.D.
Psychologist (Clinical)
PO BOX 1559
STONY BROOK, NY 11790
Suffolk County (631) 444-0580

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 Janelle Tychnowitz's NPI number?

The NPI number for Janelle Tychnowitz is 1184857336. It was assigned to this individual provider in the NPPES registry on September 3, 2009.

Where is Janelle Tychnowitz located?

Janelle Tychnowitz practices at PO Box 1559, Stony Brook, NY 11790. The listed phone number is (631) 444-0650.

What is Janelle Tychnowitz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Janelle Tychnowitz enrolled in Medicare?

Yes. Janelle Tychnowitz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Janelle Tychnowitz was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.