JULIA DIAZ APRN
NPI 1538531306
Nurse Practitioner - Family in Sulphur, OK
About Julia Diaz Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JULIA DIAZ APRN (NPI 1538531306) is an individual family provider in Sulphur, Oklahoma, licensed in Oklahoma (94081) and active in the NPI registry since October 2015. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Ada, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Julia Diaz Aprn 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.
Areas of Expertise CMS Part B claims 19
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Ada
Acute Care Hospitals · Ada, OKMercy Hospital Ardmore, Inc
Acute Care Hospitals · Ardmore, OKArbuckle Memorial Hospital
Critical Access Hospitals · Sulphur, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73086 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SULPHUR, OK 73086
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 Julia Diaz's NPI number?
The NPI number for Julia Diaz is 1538531306. It was assigned to this individual provider in the NPPES registry on October 20, 2015.
Where is Julia Diaz located?
Julia Diaz practices at 2011 W Broadway Ave, Sulphur, OK 73086. The listed phone number is (580) 622-4482.
What is Julia Diaz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Julia Diaz enrolled in Medicare?
Yes. Julia Diaz 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.
What insurance does Julia Diaz accept?
Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Julia Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Julia Diaz affiliated with any hospitals?
According to CMS data, Julia Diaz is affiliated with Mercy Hospital Ada, Mercy Hospital Ardmore, Inc and Arbuckle Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Julia Diaz was last updated on October 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.