SIMA DIANA MENTSOYAN FNP-C
NPI 1578370508
Nurse Practitioner - Family in Van Nuys, CA
About Sima Diana Mentsoyan Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIMA DIANA MENTSOYAN FNP-C (NPI 1578370508) is an individual family provider in Van Nuys, California, licensed in California (95032807) and active in the NPI registry since December 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
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
Sima Diana Mentsoyan Fnp-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.
Medicare Billing Reassignment
Medicare enrollment records show Sima Mentsoyan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Van Nuys, CA 91401
- Reassigned Medicare billing, California enrollment
- 4 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 91406 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Sima Mentsoyan's NPI number?
The NPI number for Sima Mentsoyan is 1578370508. It was assigned to this individual provider in the NPPES registry on December 13, 2024.
Where is Sima Mentsoyan located?
Sima Mentsoyan practices at 7349 Balboa Blvd Apt 3, Van Nuys, CA 91406. The listed phone number is (818) 437-7379.
What is Sima Mentsoyan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Sima Mentsoyan enrolled in Medicare?
Yes. Sima Mentsoyan 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 Sima Mentsoyan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sima Mentsoyan reassigns Medicare benefits to Erx Medical Group Inc (Van Nuys, 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 Sima Mentsoyan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sima Mentsoyan was last updated on December 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Sima Diana Mentsoyan, FNP-C · NPI 1578370508
Family physician in Van Nuys, California. Individual provider, active in the CMS NPPES registry since December 13, 2024.
## Identity
- **NPI:** 1578370508 (Entity type: Individual)
- **Enumerated:** December 13, 2024
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95032807 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7349 BALBOA BLVD APT 3, Van Nuys, CA 91406-2781
- **Phone:** (818) 437-7379
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Erx Medical Group Inc (NPI 1851172712, Van Nuys, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** December 13, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1578370508) · Data from the CMS NPPES public registry.