ERIN ELIZABETH O'BRIEN PA-C
NPI 1225538697
Physician Assistant in Bay Shore, NY

Active since February 12, 2018PECOS EnrolledAccepts Medicare Assignment
301 E MAIN ST, BAY SHORE, NY 11706(631) 968-3000 Get Directions Write a Review

NPPES record last updated: February 7, 2023. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Feb 7, 2023, Dec 2, 2021, Nov 10, 2021 and 5 more (8 updates tracked since 2018).

About Erin Elizabeth O'brien Pa-c NPPES

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

ERIN ELIZABETH O'BRIEN PA-C (NPI 1225538697) is an individual physician assistant in Bay Shore, New York and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1225538697
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameERIN ELIZABETH O'BRIENCredential: PA-C
Location Address301 E MAIN STBay Shore, NY 11706-8408
Mailing Address301 E Main StBay Shore, NY 11706-8408 · (631) 968-3000
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 12, 2018
Last NPPES UpdateFebruary 7, 20238 updates tracked since enumeration
NPPES CertifiedFebruary 7, 2023
NPI 1225538697 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

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.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X
301 E MAIN ST, Bay Shore, NY 11706

Other Names 1

Other Name (5)Erin Elizabeth Obrien Pa-c

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

Erin Elizabeth O'brien Pa-c 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 ID8325412869
PECOS Enrollment IDI20230323000816
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.

Areas of Expertise CMS Part B claims 2

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services16 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
12 services11 patients

Hospital Affiliations CMS Care Compare

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

Ns/Lij Hs Southside Hospital

Acute Care Hospitals · Bay Shore, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330043
Location301 East Main StreetBay Shore, NY 11706 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11706 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.

Hospitalist
301 E MAIN ST
BAY SHORE, NY 11706
Dietitian, Registered
301 E MAIN ST
BAY SHORE, NY 11706
Anesthesiology
301 E MAIN ST
BAY SHORE, NY 11706
Occupational Therapist
301 E MAIN ST
BAY SHORE, NY 11706
Nurse Anesthetist, Certified Registered
301 E MAIN ST
BAY SHORE, NY 11706
Physician Assistant (Surgical)
301 E MAIN ST
BAY SHORE, NY 11706
Student in an Organized Health Care Education/Training Program
301 E MAIN ST
BAY SHORE, NY 11706
Emergency Medicine
301 E MAIN ST
BAY SHORE, NY 11706

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 Erin O'brien's NPI number?

The NPI number for Erin O'brien is 1225538697. It was assigned to this individual provider in the NPPES registry on February 12, 2018. The provider is also known as Erin Elizabeth Obrien Pa-C.

Where is Erin O'brien located?

Erin O'brien practices at 301 E Main St, Bay Shore, NY 11706. The listed phone number is (631) 968-3000.

What is Erin O'brien's specialty?

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

Is Erin O'brien enrolled in Medicare?

Yes. Erin O'brien 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 Erin O'brien affiliated with any hospitals?

According to CMS data, Erin O'brien is affiliated with Ns/Lij Hs Southside Hospital.

When was this NPI record last updated?

The NPPES record for Erin O'brien was last updated on February 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.