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MS. SUSAN W CALLAHAN NP
NPI 1881683274
Nurse Practitioner - Adult Health in Stony Brook, NY

Active since October 18, 2005PECOS Enrolled
HSC T19 020, STONY BROOK UNIVERSITY HOSPITAL, STONY BROOK, NY 11794(631) 444-8223(631) 444-8947 Get Directions Write a Review

NPPES record last updated: May 31, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Susan W Callahan Np NPPES

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

MS. SUSAN W CALLAHAN NP (NPI 1881683274) is an individual adult health provider in Stony Brook, New York, licensed in New York (F301902) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1881683274
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMS. SUSAN W CALLAHANCredential: NP
Location AddressHSC T19 020, STONY BROOK UNIVERSITY HOSPITALStony Brook, NY 11794-0001
Mailing Address8 Leisurely LnBellport, NY 11713-2606 · (631) 286-9158
Phone(631) 444-8223
Fax(631) 444-8947
Sole ProprietorNo
Enumeration DateOctober 18, 2005
Last NPPES UpdateMay 31, 2024
NPPES CertifiedMay 31, 2024
✔ NPI 1881683274 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 · F301902
HSC T19 020, Stony Brook, NY 11794
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Susan W Callahan Np 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 Susan Callahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stony Brook Surgical Associates, University Faculty Practice Corporati
2.0 mi
Surgery
SUNY @ STONY BROOK, HSC, L19, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 114 clinicians in this Medicare group
NPI 1063468536 (631) 444-8278

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 11794 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 4

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

PAULA IRINA DENOYA MD
Colon & Rectal Surgery
HSC T19 020
STONY BROOK, NY 11794
Suffolk County (631) 444-2704
MS. HELEN HSIEH MD
Surgery (Pediatric Surgery)
HSC T19 020
STONY BROOK, NY 11794
Suffolk County (631) 444-3528
KONSTANTINOS SPANIOLAS M.D.
Surgery
HSC T19 020, STONY BROOK MEDICINE
STONY BROOK, NY 11794
Suffolk County (631) 444-2274
DR. LUKASZ CZERWONKA M.D.
Surgery (Surgical Oncology)
HSC T19 020, STONY BROOK MEDICINE
STONY BROOK, NY 11794
Suffolk County (631) 444-8410

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 Susan Callahan's NPI number?

The NPI number for Susan Callahan is 1881683274. It was assigned to this individual provider in the NPPES registry on October 18, 2005.

Where is Susan Callahan located?

Susan Callahan practices at Hsc T19 020 Stony Brook University Hospital, Stony Brook, NY 11794. The listed phone number is (631) 444-8223.

What is Susan Callahan's specialty?

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

Is Susan Callahan enrolled in Medicare?

Yes. Susan Callahan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Susan Callahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Susan Callahan reassigns Medicare benefits to Stony Brook Surgical Associates, University Faculty Practice Corporati (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 Susan Callahan'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 Susan Callahan was last updated on May 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.