NISREEN SLOULIN OD
NPI 1881561918
Optometrist in Fontana, CA
About Nisreen Sloulin Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NISREEN SLOULIN OD (NPI 1881561918) is an individual optometrist in Fontana, California, licensed in California (36145) and active in the NPI registry since October 2025. She is enrolled in Medicare PECOS and is a graduate of Western University Of Health Sciences College Of Dental Med (2023).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nisreen Sloulin Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nisreen Sloulin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 9 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92335 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Nisreen Sloulin's NPI number?
The NPI number for Nisreen Sloulin is 1881561918. It was assigned to this individual provider in the NPPES registry on October 22, 2025.
Where is Nisreen Sloulin located?
Nisreen Sloulin practices at 8381 Juniper Ave # 100, Fontana, CA 92335. The listed phone number is (909) 429-2020.
What is Nisreen Sloulin's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Nisreen Sloulin enrolled in Medicare?
Yes. Nisreen Sloulin is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nisreen Sloulin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nisreen Sloulin reassigns Medicare benefits to Fontana Optometric Group, Inc. (Fontana, CA). 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 Nisreen Sloulin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nisreen Sloulin accept?
Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Nisreen Sloulin 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.
When was this NPI record last updated?
The NPPES record for Nisreen Sloulin was last updated on October 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Nisreen Sloulin, OD · NPI 1881561918
Optometrist provider in Fontana, California. Individual provider, active in the CMS NPPES registry since October 22, 2025.
## Identity
- **NPI:** 1881561918 (Entity type: Individual)
- **Enumerated:** October 22, 2025
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 36145 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8381 JUNIPER AVE # 100, Fontana, CA 92335-3431
- **Phone:** (909) 429-2020
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Fontana Optometric Group, Inc. (NPI 1972688513, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Western University Of Health Sciences College Of Dental Med, class of 2023
## Record status
- **NPPES last updated:** October 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1881561918) · Data from the CMS NPPES public registry.