DR. OLIVIA RENEE COX CRNP, AGPCNP-C
NPI 1346854924
Nurse Practitioner - Adult Health in Williamsville, NY

Active since September 01, 2020PECOS EnrolledAccepts Medicare Assignment
295 ESSJAY RD, WILLIAMSVILLE, NY 14221(716) 630-1212(716) 250-5945 Get Directions Write a Review

NPPES record last updated: April 23, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2024, May 26, 2022, Oct 7, 2020 and 1 more (4 updates tracked since 2020).

About Dr. Olivia Renee Cox Crnp, Agpcnp-c NPPES

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

DR. OLIVIA RENEE COX CRNP, AGPCNP-C (NPI 1346854924) is an individual adult health provider in Williamsville, New York, licensed in New York (309908) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Sisters Of Charity Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1346854924
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameDR. OLIVIA RENEE COXCredential: CRNP, AGPCNP-C
Location Address295 ESSJAY RDWilliamsville, NY 14221-5795
Mailing Address425 Essjay Rd Ste 170Williamsville, NY 14221-8235 · (716) 630-1219 · Fax (716) 817-1726
Fax(716) 250-5945
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateSeptember 1, 2020
Last NPPES UpdateApril 23, 20244 updates tracked since enumeration
NPPES CertifiedApril 23, 2024
✔ NPI 1346854924 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 · 309908
295 ESSJAY RD, Williamsville, NY 14221

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

Dr. Olivia Renee Cox Crnp, Agpcnp-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 ID6204277155
PECOS Enrollment IDI20240509003263
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 Olivia Cox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Family Medicine
325 ESSJAY RD, 4TH FLOOR ADMIN
Williamsville, NY 14221
  • Reassigned Medicare billing, New York enrollment
  • 344 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

Sisters Of Charity Hospital

Acute Care Hospitals · Buffalo, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330078
Location2157 Main StreetBuffalo, NY 14214 · Erie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14221 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

Internal Medicine (Hematology & Oncology)
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Urology
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Internal Medicine (Hematology & Oncology)
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Nurse Practitioner
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Nurse Practitioner (Adult Health)
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Internal Medicine
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Physician Assistant
295 ESSJAY RD
WILLIAMSVILLE, NY 14221
Physician Assistant
295 ESSJAY RD
WILLIAMSVILLE, NY 14221

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 Olivia Cox's NPI number?

The NPI number for Olivia Cox is 1346854924. It was assigned to this individual provider in the NPPES registry on September 1, 2020.

Where is Olivia Cox located?

Olivia Cox practices at 295 Essjay Rd, Williamsville, NY 14221. The listed phone number is (716) 630-1212.

What is Olivia Cox's specialty?

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

Is Olivia Cox enrolled in Medicare?

Yes. Olivia Cox 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 organization bills Medicare for Olivia Cox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Cox reassigns Medicare benefits to Buffalo Medical Group, P.C. (Williamsville, 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 Olivia Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Olivia Cox affiliated with any hospitals?

According to CMS data, Olivia Cox is affiliated with Sisters Of Charity Hospital.

When was this NPI record last updated?

The NPPES record for Olivia Cox was last updated on April 23, 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.