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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.

KATLYN ANN CONVILLE ANTHONY NP
NPI 1023679503
Nurse Practitioner - Family in Stony Brook, NY

Active since June 25, 2019PECOS Enrolled
100 NICOLLS RD, STONY BROOK, NY 11794(631) 689-8333 Get Directions Write a Review

NPPES record last updated: October 23, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Katlyn Ann Conville Anthony Np NPPES

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

KATLYN ANN CONVILLE ANTHONY NP (NPI 1023679503) is an individual family provider in Stony Brook, New York, licensed in New York (344632) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2019).

NPPES Registry Identity

NPI1023679503
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATLYN ANN CONVILLE ANTHONYCredential: NP
Location Address100 NICOLLS RDStony Brook, NY 11794-0001
Mailing Address100 Nicolls RdStony Brook, NY 11794-0001
Phone(631) 689-8333
Sole ProprietorNo
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 2019
Enumeration DateJune 25, 2019
Last NPPES UpdateOctober 23, 2026
NPPES CertifiedOctober 23, 2026
✔ NPI 1023679503 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 · 344632
100 NICOLLS RD, Stony Brook, NY 11794
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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 and accepts Medicare assignment

Katlyn Ann Conville Anthony Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072842681
PECOS Enrollment IDI20190906002830
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 Reassignments

3

Medicare enrollment records show Katlyn Anthony reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Harbor View Medical Services PC
2.0 mi
Cardiovascular Disease
210 N BELLE MEAD RD
East Setauket, NY 11733
  • Reassigned Medicare billing, New York enrollment
  • Also billed through NPI 1306631742 (New York)
  • 68 clinicians in this Medicare group
NPI 1922364181 (631) 686-7890
John T Mather Memorial Hospital
3.8 mi
Pain Medicine
75 N COUNTRY RD
Port Jefferson, NY 11777
  • Reassigned Medicare billing, New York enrollment
  • 8 clinicians in this Medicare group
NPI 1922486182 (631) 473-1320
Timothy D. Groth MD PC
8.0 mi
Multi-Specialty
994 W JERICHO TPKE, SUITE104
Smithtown, NY 11787
  • Reassigned Medicare billing, New York enrollment
  • 48 clinicians in this Medicare group
NPI 1720022015 (631) 543-1440

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
160 services81 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
51 services51 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
14 services14 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

John T Mather Memorial Hospital Of Port Jefferson

Acute Care Hospitals · Port Jefferson, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330185
Location75 North Country RoadPort Jefferson, NY 11777 · Suffolk County
Emergency services

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 20

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

MALWINA WLOCH M.D.
Anesthesiology
100 NICOLLS RD, SUNY AT STONY BROOK - DEPARTMENT OF ANESTHESIOLOGY
STONY BROOK, NY 11794
Suffolk County (631) 444-2968
CHABIDOU SAMPAIN FNP
Psychiatry & Neurology (Geriatric Psychiatry)
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 358-1423
MISS KAITLYN SBROLLINI
Student in an Organized Health Care Education/Training Program
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 331-6388
DR. RASAN KASHYAP CHERALA MD
Internal Medicine
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (425) 753-8665
EMILY GRACE DEEHAN
Specialist/Technologist (Athletic Trainer)
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 632-6000
CINDY LIN
Physician Assistant
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 632-6000
DR. MUHAMMAD IBRAHIM CHOUDRY MD
Anesthesiology
100 NICOLLS RD, HEALTH SCIENCES CENTER L4-060 (Z8480)
STONY BROOK, NY 11794
Suffolk County (631) 444-2975
SAMANTHA TINA STORDEUR
Neurological Surgery
100 NICOLLS RD, HSC T12 RM 080
STONY BROOK, NY 11794
Suffolk County (631) 444-1116

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 Katlyn Anthony's NPI number?

The NPI number for Katlyn Anthony is 1023679503. It was assigned to this individual provider in the NPPES registry on June 25, 2019.

Where is Katlyn Anthony located?

Katlyn Anthony practices at 100 Nicolls Rd, Stony Brook, NY 11794. The listed phone number is (631) 689-8333.

What is Katlyn Anthony's specialty?

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

Is Katlyn Anthony enrolled in Medicare?

Yes. Katlyn Anthony is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Katlyn Anthony's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katlyn Anthony reassigns Medicare benefits to 3 organizations: Harbor View Medical Services PC (East Setauket, NY), John T Mather Memorial Hospital (Port Jefferson, NY) and Timothy D. Groth MD PC (Smithtown, NY). Each 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 Katlyn Anthony's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Katlyn Anthony affiliated with any hospitals?

According to CMS data, Katlyn Anthony is affiliated with John T Mather Memorial Hospital Of Port Jefferson.

When was this NPI record last updated?

The NPPES record for Katlyn Anthony was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.