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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.

KATELYN ALYSSA DOHERTY NP
NPI 1851991194
Nurse Practitioner in East Setauket, NY

Active since October 27, 2020PECOS Enrolled
45 RESEARCH WAY STE 108, EAST SETAUKET, NY 11733(631) 941-2000(631) 941-2010 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 29, 2026, Nov 2, 2021, Oct 27, 2020 (3 updates tracked since 2020).

About Katelyn Alyssa Doherty Np NPPES

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

KATELYN ALYSSA DOHERTY NP (NPI 1851991194) is an individual nurse practitioner in East Setauket, New York, licensed in New York (F309820-01) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851991194
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameKATELYN ALYSSA DOHERTYCredential: NP
Location Address45 RESEARCH WAY STE 108East Setauket, NY 11733-6401
Mailing Address5 Eva LnFarmingville, NY 11738-1010 · (631) 624-7943
Phone(631) 941-2000
Fax(631) 941-2010
Sole ProprietorNo
Enumeration DateOctober 27, 2020
Last NPPES UpdateSeptember 29, 20263 updates tracked since enumeration
NPPES CertifiedApril 9, 2021
✔ NPI 1851991194 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in NY · F309820-01
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
45 RESEARCH WAY STE 108, East Setauket, NY 11733
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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)

Katelyn Alyssa Doherty 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 Katelyn Doherty reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stony Brook Internists, University Faculty Practice Corporation
1.9 mi
Pulmonary Disease
SUNY @ STONY BROOK, HSC, L16, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 177 clinicians in this Medicare group
NPI 1104865229 (631) 444-2448

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 11733 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 20

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

KATHLEEN T CALLAGHAN NP, RN
Nurse Practitioner (Adult Health)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
NIRUPA RAMJISINGH PA
Physician Assistant (Medical)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
LINA CHEVALIER MD
Internal Medicine (Cardiovascular Disease)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
MS. JESSICA SOLTAN FNP-C
Nurse Practitioner (Family)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
MR. THOMAS JOSEPH PETTEI M.D.
Internal Medicine (Cardiovascular Disease)
45 RESEARCH WAY STE 108, STONY BROOK INTERNISTS
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
NAOMI YSIMURA
Nurse Practitioner (Family)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
LEONIDAS MIRAS
Internal Medicine (Cardiovascular Disease)
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000
DEBORAH ANNE ROTH NP
Nurse Practitioner
45 RESEARCH WAY STE 108
EAST SETAUKET, NY 11733
Suffolk County (631) 941-2000

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 Katelyn Doherty's NPI number?

The NPI number for Katelyn Doherty is 1851991194. It was assigned to this individual provider in the NPPES registry on October 27, 2020.

Where is Katelyn Doherty located?

Katelyn Doherty practices at 45 Research Way Ste 108, East Setauket, NY 11733. The listed phone number is (631) 941-2000.

What is Katelyn Doherty's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Katelyn Doherty enrolled in Medicare?

Yes. Katelyn Doherty is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katelyn Doherty's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katelyn Doherty reassigns Medicare benefits to Stony Brook Internists, University Faculty Practice Corporation (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 Katelyn Doherty'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 Katelyn Doherty was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.