MATT REZA ROSTAMI M.D
NPI 1184026833
Hospitalist in Tarzana, CA
About Matt Reza Rostami M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATT REZA ROSTAMI M.D (NPI 1184026833) is an individual hospitalist provider in Tarzana, California, licensed in California (A135686) and active in the NPI registry since September 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Thousand Oaks, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Matt Reza Rostami M.d 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
6Medicare enrollment records show Matt Rostami reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Hollywood, CA 90048
- Reassigned Medicare billing, California enrollment
- 175 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Thousand Oaks, CA 91360
- Reassigned Medicare billing, California enrollment
- 36 clinicians in this Medicare group
Thousand Oaks, CA 91360
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 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 91356 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
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 20
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 Matt Rostami's NPI number?
The NPI number for Matt Rostami is 1184026833. It was assigned to this individual provider in the NPPES registry on September 24, 2014.
Where is Matt Rostami located?
Matt Rostami practices at 18321 Clark St, Tarzana, CA 91356. The listed phone number is (310) 423-5252.
What is Matt Rostami's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Matt Rostami enrolled in Medicare?
Yes. Matt Rostami 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 Matt Rostami's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matt Rostami reassigns Medicare benefits to 6 organizations: Kansal Inc (West Hollywood, CA), Cedars-Sinai Medical Care Foundation (Los Angeles, CA), Jaspreet Somal M.D., A.P.C. (Thousand Oaks, CA), Life Medical Practitioners (Thousand Oaks, CA), Inpatient Specialists Of California, PC (San Bernardino, CA) and 1 more organization, listed in the Medicare section above. 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 Matt Rostami'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 Matt Rostami was last updated on November 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Matt Reza Rostami, M.D · NPI 1184026833
Hospitalist physician in Tarzana, California. Individual provider, active in the CMS NPPES registry since September 24, 2014.
## Identity
- **NPI:** 1184026833 (Entity type: Individual)
- **Enumerated:** September 24, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A135686 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 18321 CLARK ST, Tarzana, CA 91356-3501
- **Phone:** (310) 423-5252 · **Fax:** (310) 423-8441
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Kansal Inc (NPI 1043510183, West Hollywood, CA); Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA); Jaspreet Somal M.D., A.P.C. (NPI 1154917318, Thousand Oaks, CA); Life Medical Practitioners (NPI 1821799164, Thousand Oaks, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** November 8, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1184026833) · Data from the CMS NPPES public registry.