RETZEL NARON
NPI 1437627742
Nurse Practitioner - Family in West Hills, CA
About Retzel Naron NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RETZEL NARON (NPI 1437627742) is an individual family provider in West Hills, California, licensed in California (95010095) and active in the NPI registry since November 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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
Retzel Naron 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 Reassignments
3Medicare enrollment records show Retzel Naron reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Panorama City, CA 91402
- Reassigned Medicare billing, California enrollment
- 6 clinicians in this Medicare group
Sherman Oaks, CA 91403
- Reassigned Medicare billing, California enrollment
- 26 clinicians in this Medicare group
Sherman Oaks, CA 91403
- Reassigned Medicare billing, California enrollment
- 36 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.
Areas of Expertise CMS Part B claims 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91307 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 4
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 Retzel Naron's NPI number?
The NPI number for Retzel Naron is 1437627742. It was assigned to this individual provider in the NPPES registry on November 5, 2018.
Where is Retzel Naron located?
Retzel Naron practices at 7057 Shoup Ave, West Hills, CA 91307. The listed phone number is (818) 348-8442.
What is Retzel Naron's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Retzel Naron enrolled in Medicare?
Yes. Retzel Naron 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 organizations bill Medicare for Retzel Naron's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Retzel Naron reassigns Medicare benefits to 3 organizations: Mark Enterprises MD Inc (Panorama City, CA), Mid-Valley Pulmonary Medical Group, Inc. (Sherman Oaks, CA) and San Fernando Valley Medical Group Inc (Sherman Oaks, CA). Each 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 Retzel Naron'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 Retzel Naron was last updated on November 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Retzel Naron · NPI 1437627742
Family physician in West Hills, California. Individual provider, active in the CMS NPPES registry since November 5, 2018.
## Identity
- **NPI:** 1437627742 (Entity type: Individual)
- **Enumerated:** November 5, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95010095 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 7057 SHOUP AVE, West Hills, CA 91307-2335
- **Phone:** (818) 348-8442
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mark Enterprises MD Inc (NPI 1851124663, Panorama City, CA); Mid-Valley Pulmonary Medical Group, Inc. (NPI 1689688335, Sherman Oaks, CA); San Fernando Valley Medical Group Inc (NPI 1902188022, Sherman Oaks, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 5, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1437627742) · Data from the CMS NPPES public registry.