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KATHERINE STENBY
NPI 1144187485
Physician Assistant in Riverhead, NY

Active since January 08, 2026PECOS EnrolledAccepts Medicare Assignment
1 HEROES WAY, RIVERHEAD, NY 11901(631) 548-6000 Get Directions Write a Review

NPPES record last updated: January 8, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Katherine Stenby NPPES

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

KATHERINE STENBY (NPI 1144187485) is an individual physician assistant in Riverhead, New York and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of Touro Un Col Of Osteopathic Medicine, Henderson (2026).

NPPES Registry Identity

NPI1144187485
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKATHERINE STENBY
Location Address1 HEROES WAYRiverhead, NY 11901-2054
Mailing Address25 Woodbrook CirHoltsville, NY 11742-2423
Phone(631) 548-6000
Sole ProprietorNo
Medical School CMSTouro Un Col Of Osteopathic Medicine, HendersonGraduated 2026
Enumeration DateJanuary 8, 2026
NPPES CertifiedJanuary 8, 2026
✔ NPI 1144187485 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1 HEROES WAY, Riverhead, NY 11901
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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 and accepts Medicare assignment

Katherine Stenby 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 ID3870077092
PECOS Enrollment IDI20260325001194
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.

Hospital Affiliations CMS Care Compare

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

Mount Sinai South Nassau

Acute Care Hospitals · Oceanside, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330198
LocationOne Healthy WayOceanside, NY 11572 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11901 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
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
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.

DR. ORSEOLA ARAPI MD
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 546-6446
DR. NICOLE MELISSA CASTRO DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
JOANNE ELIZABETH COTRONE RPA-C
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6200
JARED VINCENT NASSO DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
MARCELA TROCHA MD, MSC
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
SANOORI WELMILLAGE DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
COURTNEY MALIA CLEMONS
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6000
KASIDY SMITH PA-C
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 538-8860

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 Katherine Stenby's NPI number?

The NPI number for Katherine Stenby is 1144187485. It was assigned to this individual provider in the NPPES registry on January 8, 2026.

Where is Katherine Stenby located?

Katherine Stenby practices at 1 Heroes Way, Riverhead, NY 11901. The listed phone number is (631) 548-6000.

What is Katherine Stenby's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Katherine Stenby enrolled in Medicare?

Yes. Katherine Stenby 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.

Is Katherine Stenby affiliated with any hospitals?

According to CMS data, Katherine Stenby is affiliated with Mount Sinai South Nassau.

When was this NPI record last updated?

The NPPES record for Katherine Stenby was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.